RIP による GRE トンネルでのルータ間 IPSec（RSA キー）の設定例

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Updated: 2008 年 1 月 14 日

Document ID:29780

偏向のない言語

この製品のドキュメントセットは、偏向のない言語を使用するように配慮されています。このドキュメントセットでの偏向のない言語とは、年齢、障害、性別、人種的アイデンティティ、民族的アイデンティティ、性的指向、社会経済的地位、およびインターセクショナリティに基づく差別を意味しない言語として定義されています。製品ソフトウェアのユーザインターフェイスにハードコードされている言語、RFP のドキュメントに基づいて使用されている言語、または参照されているサードパーティ製品で使用されている言語によりドキュメントに例外が存在する場合があります。シスコのインクルーシブランゲージの取り組みの詳細は、こちらをご覧ください。

翻訳について

シスコは世界中のユーザにそれぞれの言語でサポートコンテンツを提供するために、機械と人による翻訳を組み合わせて、本ドキュメントを翻訳しています。ただし、最高度の機械翻訳であっても、専門家による翻訳のような正確性は確保されません。シスコは、これら翻訳の正確性について法的責任を負いません。原典である英語版（リンクからアクセス可能）もあわせて参照することを推奨します。

内容

概要

前提条件

要件

使用するコンポーネント

表記法

設定

ネットワーク図

設定

確認

トラブルシュート

トラブルシューティングの手順

トラブルシューティングのためのコマンド

概要

このドキュメントでは、RSA 鍵を使用したルータでの設定例を紹介しています。両方のルータで、Routing Information Protocol(RIP)により、RSA 鍵と IPSec/Generic Routing Encapsulation（GRE）トンネルが設定されています。

前提条件

要件

このドキュメントに特有の要件はありません。

使用するコンポーネント

このドキュメントの情報は、次のソフトウェアとハードウェアのバージョンに基づいています。

Cisco IOS®ソフトウェアリリース12.2が稼働するCiscoルータ

このドキュメントの情報は、特定のラボ環境にあるデバイスに基づいて作成されました。このドキュメントで使用するすべてのデバイスは、初期（デフォルト）設定の状態から起動しています。対象のネットワークが実稼働中である場合には、どのようなコマンドについても、その潜在的な影響について確実に理解しておく必要があります。

表記法

ドキュメントの表記法の詳細は、「シスコテクニカルティップスの表記法」を参照してください。

設定

このセクションでは、このドキュメントで説明する機能を設定するために必要な情報を提供しています。

注：この文書で使用されているコマンドの詳細を調べるには、「Command Lookup ツール」を使用してください（登録ユーザのみ）。

ネットワーク図

このドキュメントでは、次のネットワークセットアップを使用します。

設定

このドキュメントでは、次の構成を使用します。

Router 101 の暗号設定
Router 101
Router 102 の暗号設定
Router 102

Router 101 の暗号設定
101(config)#crypto isakmp enable 101(config)#crypto isakmp identity hostname 101(config)#crypto isakmp policy 1 101(config-isakmp)#authentication rsa-encr 101(config)#access-list 101 permit gre host 20.1.1.1 host 20.1.1.2 101(config)#crypto ipsec transform-set test esp-des esp-sha-hmac 101(cfg-crypto-trans)#mode transport 101(config)#crypto map test 10 ip 101(config)#crypto map test 10 ipsec-is % NOTE: This new crypto map will remain disabled until a peer and a valid access list have been configured. 101(config-crypto-map)#set transform-set test 101(config-crypto-map)#match address 101 101(config-crypto-map)#set peer 20.1.1.2 101(config-crypto-map)# 101(config)#access-list 101 permit gre host 20.1.1.1 host 20.1.1.2 101(config)#interface Tunnel0 101(config-if)#crypto map test 101(config)#interface ethernet 1/0 101(config-if)#crypto map test

Router 101 の暗号設定

101(config)#crypto isakmp enable
101(config)#crypto isakmp identity hostname
101(config)#crypto isakmp policy 1
101(config-isakmp)#authentication rsa-encr
101(config)#access-list 101 permit gre host 20.1.1.1 host 20.1.1.2
101(config)#crypto ipsec transform-set test esp-des esp-sha-hmac
101(cfg-crypto-trans)#mode transport
101(config)#crypto map test 10 ip
101(config)#crypto map test 10 ipsec-is
% NOTE: This new crypto map will remain disabled until a peer
        and a valid access list have been configured.
101(config-crypto-map)#set transform-set test
101(config-crypto-map)#match address 101
101(config-crypto-map)#set peer 20.1.1.2
101(config-crypto-map)#

101(config)#access-list 101 permit gre host 20.1.1.1 host 20.1.1.2

101(config)#interface Tunnel0
101(config-if)#crypto map test

101(config)#interface ethernet 1/0
101(config-if)#crypto map test

Router 101
Building configuration... Current configuration : 1486 bytes ! version 12.2 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname 101 ! ! clock timezone PST -8 ip subnet-zero ip domain name cisco.com ip host 102.cisco.com 20.1.1.2 ! ip audit notify log ip audit po max-events 100 ! crypto isakmp policy 1 authentication rsa-encr crypto isakmp identity hostname crypto isakmp keepalive 20 5 ! ! crypto ipsec transform-set test esp-des esp-sha-hmac mode transport ! crypto map test 10 ipsec-isakmp set peer 20.1.1.2 set transform-set test match address 101 ! ! crypto key pubkey-chain rsa named-key 102.cisco.com key-string 305C300D 06092A86 4886F70D 01010105 00034B00 30480241 00DB4FEB EF0C0D3D 72FC5BD3 29C8E94B 726161BC F1AF337C E5F2D11D FBFC2245 95EA2AB7 9D09156C 08A5A7CD 36E43D94 F1E3C978 37A79379 384D2A72 CE575E91 3F020301 0001 quit ! ! ! interface Loopback1 ip address 192.168.1.1 255.255.255.0 ! interface Tunnel0 ip address 10.10.10.1 255.255.255.252 ip mtu 1420 tunnel source Ethernet1/0 tunnel destination 20.1.1.2 crypto map test ! interface Ethernet0/0 ip address 1.1.1.1 255.255.255.0 ! interface Ethernet1/0 ip address 20.1.1.1 255.255.255.0 crypto map test ! interface Serial2/0 no ip address shutdown ! interface Serial3/0 no ip address shutdown ! router rip version 2 passive-interface Ethernet1/0 network 10.0.0.0 network 192.168.1.0 ! ip classless no ip http server ! ! access-list 101 permit gre host 20.1.1.1 host 20.1.1.2 ! ! line con 0 line aux 0 line vty 0 4 login ! end 101#

Router 101

Building configuration...

Current configuration : 1486 bytes
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname 101
!
!
clock timezone PST -8
ip subnet-zero
ip domain name cisco.com
ip host 102.cisco.com 20.1.1.2
!
ip audit notify log
ip audit po max-events 100
!
crypto isakmp policy 1
 authentication rsa-encr
crypto isakmp identity hostname
crypto isakmp keepalive 20 5
!
!
crypto ipsec transform-set test esp-des esp-sha-hmac
 mode transport
!
crypto map test 10 ipsec-isakmp
 set peer 20.1.1.2
 set transform-set test
 match address 101
!
!
crypto key pubkey-chain rsa
 named-key 102.cisco.com
  key-string
   305C300D 06092A86 4886F70D 01010105 00034B00 30480241 00DB4FEB EF0C0D3D
   72FC5BD3 29C8E94B 726161BC F1AF337C E5F2D11D FBFC2245 95EA2AB7 9D09156C
   08A5A7CD 36E43D94 F1E3C978 37A79379 384D2A72 CE575E91 3F020301 0001
  quit
 !
 !
 !
 interface Loopback1
 ip address 192.168.1.1 255.255.255.0
!
interface Tunnel0
 ip address 10.10.10.1 255.255.255.252
 ip mtu 1420
 tunnel source Ethernet1/0
 tunnel destination 20.1.1.2
 crypto map test
!
interface Ethernet0/0
 ip address 1.1.1.1 255.255.255.0
!
interface Ethernet1/0
 ip address 20.1.1.1 255.255.255.0
 crypto map test
!
interface Serial2/0
 no ip address
 shutdown
!
interface Serial3/0
 no ip address
 shutdown
!
router rip
 version 2
 passive-interface Ethernet1/0
 network 10.0.0.0
 network 192.168.1.0
!
ip classless
no ip http server
!
!
access-list 101 permit gre host 20.1.1.1 host 20.1.1.2
!
!
line con 0
line aux 0
line vty 0 4
 login
!
end

101#

Router 102 の暗号設定
102(config)#crypto isakmp enable 102(config)#crypto isakmp identity hostname 102(config)#crypto isakmp policy 1 102(config-isakmp)#authentication rsa-encr 102(config)#access-list 101 permit gre host 20.1.1.2 host 20.1.1.1 102(config)#crypto ipsec transform-set test esp-des esp-sha-hmac 102(cfg-crypto-trans)#mode transport 102(config)#crypto map test 10 ip 102(config)#crypto map test 10 ipsec-is % NOTE: This new crypto map will remain disabled until a peer and a valid access list have been configured. 102(config-crypto-map)#set transform-set test 102(config-crypto-map)#match address 101 102(config-crypto-map)#set peer 20.1.1.1 102(config-crypto-map)# 102(config)#interface Tunnel0 102(config-if)#crypto map test 102(config)#interface ethernet 1/0 102(config-if)#crypto map test

Router 102 の暗号設定

102(config)#crypto isakmp enable
102(config)#crypto isakmp identity hostname
102(config)#crypto isakmp policy 1
102(config-isakmp)#authentication rsa-encr
102(config)#access-list 101 permit gre host 20.1.1.2 host 20.1.1.1
102(config)#crypto ipsec transform-set test esp-des esp-sha-hmac
102(cfg-crypto-trans)#mode transport
102(config)#crypto map test 10 ip
102(config)#crypto map test 10 ipsec-is
% NOTE: This new crypto map will remain disabled until a peer
        and a valid access list have been configured.
102(config-crypto-map)#set transform-set test
102(config-crypto-map)#match address 101
102(config-crypto-map)#set peer 20.1.1.1
102(config-crypto-map)#



102(config)#interface Tunnel0
102(config-if)#crypto map test

102(config)#interface ethernet 1/0
102(config-if)#crypto map test

Router 102
102#write terminal Building configuration... Current configuration : 1484 bytes ! version 12.2 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname 102 ! ! clock timezone PST -8 ip subnet-zero ip domain name cisco.com ip host 101.cisco.com 20.1.1.1 ! ip audit notify log ip audit po max-events 100 ! crypto isakmp policy 1 authentication rsa-encr crypto isakmp identity hostname crypto isakmp keepalive 20 5 ! ! crypto ipsec transform-set test esp-des esp-sha-hmac mode transport ! crypto map test 10 ipsec-isakmp set peer 20.1.1.1 set transform-set test match address 101 ! ! crypto key pubkey-chain rsa named-key 101.cisco.com address 20.1.1.1 key-string 305C300D 06092A86 4886F70D 01010105 00034B00 30480241 00A7D24F E6E15787 5EE1434A A76A3DC1 ADE96A4D C6B4D0F3 A7DDAD10 446EF83A 89D1115F 0C517118 ECAF418E F4C84823 2A017B97 F85690EF EBCF3414 AB3E81F6 A5020301 0001 quit ! ! ! interface Loopback1 ip address 172.16.1.1 255.255.255.0 ! interface Tunnel0 ip address 10.10.10.2 255.255.255.252 ip mtu 1420 tunnel source Ethernet0/0 tunnel destination 20.1.1.1 crypto map test ! interface Ethernet0/0 ip address 20.1.1.2 255.255.255.0 crypto map test ! interface Ethernet1/0 no ip address ! interface Serial2/0 no ip address shutdown ! interface Serial3/0 no ip address shutdown ! router rip version 2 passive-interface Ethernet0/0 network 10.0.0.0 network 172.16.0.0 ! ip classless no ip http server ! ! access-list 101 permit gre host 20.1.1.2 host 20.1.1.1 ! ! line con 0 line aux 0 line vty 0 4 login ! end 102#

Router 102

102#write terminal
Building configuration...

Current configuration : 1484 bytes
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname 102
!
!
clock timezone PST -8
ip subnet-zero
ip domain name cisco.com
ip host 101.cisco.com 20.1.1.1
!
ip audit notify log
ip audit po max-events 100
!
crypto isakmp policy 1
 authentication rsa-encr
crypto isakmp identity hostname
crypto isakmp keepalive 20 5
!
!
crypto ipsec transform-set test esp-des esp-sha-hmac
 mode transport
!
crypto map test 10 ipsec-isakmp
 set peer 20.1.1.1
 set transform-set test
 match address 101
!
!
crypto key pubkey-chain rsa
 named-key 101.cisco.com
  address 20.1.1.1
  key-string
   305C300D 06092A86 4886F70D 01010105 00034B00 30480241 00A7D24F E6E15787
   5EE1434A A76A3DC1 ADE96A4D C6B4D0F3 A7DDAD10 446EF83A 89D1115F 0C517118
   ECAF418E F4C84823 2A017B97 F85690EF EBCF3414 AB3E81F6 A5020301 0001
  quit
 !
 !
 !
 interface Loopback1
 ip address 172.16.1.1 255.255.255.0
!
interface Tunnel0
 ip address 10.10.10.2 255.255.255.252
 ip mtu 1420
 tunnel source Ethernet0/0
 tunnel destination 20.1.1.1
 crypto map test
!
interface Ethernet0/0
 ip address 20.1.1.2 255.255.255.0
 crypto map test
!
interface Ethernet1/0
 no ip address
!
interface Serial2/0
 no ip address
 shutdown
!
interface Serial3/0
 no ip address
 shutdown
!
router rip
 version 2
 passive-interface Ethernet0/0
 network 10.0.0.0
 network 172.16.0.0
!
ip classless
no ip http server
!
!
access-list 101 permit gre host 20.1.1.2 host 20.1.1.1
!
!
line con 0
line aux 0
line vty 0 4
 login
!
end

102#

確認

ここでは、設定が正しく機能していることを確認するために使用する情報を示します。

一部の show コマンドはアウトプットインタープリタツールによってサポートされています（登録ユーザ専用）。このツールを使用することによって、show コマンド出力の分析結果を表示できます。

show crypto isakmp sa detail：ピアにおける現在の Internet Key Exchange（IKE; インターネット鍵交換）Security Association（SA; セキュリティアソシエーション）をすべて表示します。
show crypto ipsec sa：現在の SA で使用されている設定を表示します。
show crypto engine connections active：暗号化エンジンの設定情報のサマリーを表示します。
show ip route：ルーティングテーブルの現在の状態を表示します。

Router 101 のコマンド出力

101#show crypto isakmp sa detail
*Dec 28 21:15:19.371: ISAKMP (0:14): purging node 543282640
Codes: C - IKE configuration mode, D - Dead Peer Detection
       K - Keepalives, N - NAT-traversal
       X - IKE Extended Authentication
       psk - Preshared key, rsig - RSA signature
       renc - RSA encryption

Conn id Local           Remote          Encr Hash Auth DH Lifetime Capabilities
14      20.1.1.1        20.1.1.2        des  sha  rsig 1  23:59:06 D




101#show crypto ipsec sa

interface: Ethernet1/0
    Crypto map tag: test, local addr. 20.1.1.1

   local  ident (addr/mask/prot/port): (20.1.1.1/255.255.255.255/47/0)
   remote ident (addr/mask/prot/port): (20.1.1.2/255.255.255.255/47/0)
   current_peer: 20.1.1.2:500
     PERMIT, flags={origin_is_acl,}
    #pkts encaps: 0, #pkts encrypt: 0, #pkts digest 0
    #pkts decaps: 0, #pkts decrypt: 0, #pkts verify 0
    #pkts compressed: 0, #pkts decompressed: 0
    #pkts not compressed: 0, #pkts compr. failed: 0
    #pkts not decompressed: 0, #pkts decompress failed: 0
    #send errors 1, #recv errors 0

     local crypto endpt.: 20.1.1.1, remote crypto endpt.: 20.1.1.2
     path mtu 1420, media mtu 1420
     current outbound spi: 7FB7A347

     inbound esp sas:
      spi: 0x7221D7D2(1914820562)
        transform: esp-des esp-sha-hmac ,
        in use settings ={Transport, }
        slot: 0, conn id: 2000, flow_id: 1, crypto map: test
        sa timing: remaining key lifetime (k/sec): (4468975/3586)
        IV size: 8 bytes
        replay detection support: Y

     inbound ah sas:

     inbound pcp sas:

     outbound esp sas:
      spi: 0x7FB7A347(2142741319)
        transform: esp-des esp-sha-hmac ,
        in use settings ={Transport, }
        slot: 0, conn id: 2001, flow_id: 2, crypto map: test
        sa timing: remaining key lifetime (k/sec): (4468975/3586)
        IV size: 8 bytes
        replay detection support: Y

     outbound ah sas:

     outbound pcp sas:


interface: Tunnel0
    Crypto map tag: test, local addr. 20.1.1.1

   local  ident (addr/mask/prot/port): (20.1.1.1/255.255.255.255/47/0)
   remote ident (addr/mask/prot/port): (20.1.1.2/255.255.255.255/47/0)
   current_peer: 20.1.1.2:500
     PERMIT, flags={origin_is_acl,}
    #pkts encaps: 0, #pkts encrypt: 0, #pkts digest 0
    #pkts decaps: 0, #pkts decrypt: 0, #pkts verify 0
    #pkts compressed: 0, #pkts decompressed: 0
    #pkts not compressed: 0, #pkts compr. failed: 0
    #pkts not decompressed: 0, #pkts decompress failed: 0
    #send errors 1, #recv errors 0

     local crypto endpt.: 20.1.1.1, remote crypto endpt.: 20.1.1.2
     path mtu 1420, media mtu 1420
     current outbound spi: 7FB7A347

     inbound esp sas:
      spi: 0x7221D7D2(1914820562)
        transform: esp-des esp-sha-hmac ,
        in use settings ={Transport, }
        slot: 0, conn id: 2000, flow_id: 1, crypto map: test
        sa timing: remaining key lifetime (k/sec): (4468975/3585)
        IV size: 8 bytes
        replay detection support: Y

     inbound ah sas:

     inbound pcp sas:

     outbound esp sas:
      spi: 0x7FB7A347(2142741319)
        transform: esp-des esp-sha-hmac ,
        in use settings ={Transport, }
        slot: 0, conn id: 2001, flow_id: 2, crypto map: test
        sa timing: remaining key lifetime (k/sec): (4468975/3584)
        IV size: 8 bytes
        replay detection support: Y

     outbound ah sas:

     outbound pcp sas:


101#show crypto engine connections active

  ID Interface       IP-Address      State  Algorithm           Encrypt  Decrypt
  14 Ethernet1/0     20.1.1.1        set    HMAC_SHA+DES_56_CB        0        0
2000 Ethernet1/0     20.1.1.1        set    HMAC_SHA+DES_56_CB        0        6
2001 Ethernet1/0     20.1.1.1        set    HMAC_SHA+DES_56_CB        5        0




101#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
       * - candidate default, U - per-user static route, o - ODR
       P - periodic downloaded static route

Gateway of last resort is not set

     20.0.0.0/24 is subnetted, 1 subnets
C       20.1.1.0 is directly connected, Ethernet1/0
R    172.16.0.0/16 [120/1] via 10.10.10.2, 00:00:08, Tunnel0
     10.0.0.0/30 is subnetted, 1 subnets
C       10.10.10.0 is directly connected, Tunnel0
C    192.168.1.0/24 is directly connected, Loopback1
101#

Router 102 のコマンド出力

102#show crypto isakmp sa detail
Codes: C - IKE configuration mode, D - Dead Peer Detection
       K - Keepalives, N - NAT-traversal
       X - IKE Extended Authentication
       psk - Preshared key, rsig - RSA signature
       renc - RSA encryption

Conn id Local           Remote          Encr Hash Auth DH Lifetime Capabilities
15      20.1.1.2        20.1.1.1        des  sha  rsig 1  23:58:44 D


102#show crypto ipsec sa

interface: Ethernet0/0
    Crypto map tag: test, local addr. 20.1.1.2

   local  ident (addr/mask/prot/port): (20.1.1.2/255.255.255.255/47/0)
   remote ident (addr/mask/prot/port): (20.1.1.1/255.255.255.255/47/0)
   current_peer: 20.1.1.1:500
     PERMIT, flags={origin_is_acl,}
    #pkts encaps: 4, #pkts encrypt: 4, #pkts digest 4
    #pkts decaps: 3, #pkts decrypt: 3, #pkts verify 3
    #pkts compressed: 0, #pkts decompressed: 0
    #pkts not compressed: 0, #pkts compr. failed: 0
    #pkts not decompressed: 0, #pkts decompress failed: 0
    #send errors 0, #recv errors 0

     local crypto endpt.: 20.1.1.2, remote crypto endpt.: 20.1.1.1
     path mtu 1420, media mtu 1420
     current outbound spi: 92F52EF2

     inbound esp sas:
      spi: 0x1D25013E(488964414)
        transform: esp-des esp-sha-hmac ,
        in use settings ={Transport, }
        slot: 0, conn id: 2000, flow_id: 1, crypto map: test
        sa timing: remaining key lifetime (k/sec): (4596388/3494)
        IV size: 8 bytes
        replay detection support: Y

     inbound ah sas:

     inbound pcp sas:

     outbound esp sas:
      spi: 0x92F52EF2(2465541874)
        transform: esp-des esp-sha-hmac ,
        in use settings ={Transport, }
        slot: 0, conn id: 2001, flow_id: 2, crypto map: test
        sa timing: remaining key lifetime (k/sec): (4596388/3494)
        IV size: 8 bytes
        replay detection support: Y

     outbound ah sas:

     outbound pcp sas:


interface: Tunnel0
    Crypto map tag: test, local addr. 20.1.1.2

   local  ident (addr/mask/prot/port): (20.1.1.2/255.255.255.255/47/0)
   remote ident (addr/mask/prot/port): (20.1.1.1/255.255.255.255/47/0)
   current_peer: 20.1.1.1:500
     PERMIT, flags={origin_is_acl,}
    #pkts encaps: 4, #pkts encrypt: 4, #pkts digest 4
    #pkts decaps: 3, #pkts decrypt: 3, #pkts verify 3
    #pkts compressed: 0, #pkts decompressed: 0
    #pkts not compressed: 0, #pkts compr. failed: 0
    #pkts not decompressed: 0, #pkts decompress failed: 0
    #send errors 0, #recv errors 0

     local crypto endpt.: 20.1.1.2, remote crypto endpt.: 20.1.1.1
     path mtu 1420, media mtu 1420
     current outbound spi: 92F52EF2

     inbound esp sas:
      spi: 0x1D25013E(488964414)
        transform: esp-des esp-sha-hmac ,
        in use settings ={Transport, }
        slot: 0, conn id: 2000, flow_id: 1, crypto map: test
        sa timing: remaining key lifetime (k/sec): (4596388/3493)
        IV size: 8 bytes
        replay detection support: Y

     inbound ah sas:

     inbound pcp sas:

     outbound esp sas:
      spi: 0x92F52EF2(2465541874)
        transform: esp-des esp-sha-hmac ,
        in use settings ={Transport, }
        slot: 0, conn id: 2001, flow_id: 2, crypto map: test
        sa timing: remaining key lifetime (k/sec): (4596388/3493)
        IV size: 8 bytes
        replay detection support: Y

     outbound ah sas:

     outbound pcp sas:




102#show crypto engine connections active

  ID Interface       IP-Address      State  Algorithm           Encrypt  Decrypt
  15 Ethernet0/0     20.1.1.2        set    HMAC_SHA+DES_56_CB        0        0
2000 Ethernet0/0     20.1.1.2        set    HMAC_SHA+DES_56_CB        0        3
2001 Ethernet0/0     20.1.1.2        set    HMAC_SHA+DES_56_CB        4        0

102#
102#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
       * - candidate default, U - per-user static route, o - ODR
       P - periodic downloaded static route

Gateway of last resort is not set

     20.0.0.0/24 is subnetted, 1 subnets
C       20.1.1.0 is directly connected, Ethernet0/0
     172.16.0.0/24 is subnetted, 1 subnets
C       172.16.1.0 is directly connected, Loopback1
     10.0.0.0/30 is subnetted, 1 subnets
C       10.10.10.0 is directly connected, Tunnel0
R    192.168.1.0/24 [120/1] via 10.10.10.1, 00:00:08, Tunnel0

トラブルシュート

ここでは、設定のトラブルシューティングに使用できる情報を示します。トラブルシューティングについての追加情報は、『IP Security のトラブルシューティング - debug コマンドの理解と使用』を参照してください。

トラブルシューティングの手順

設定をトラブルシューティングするには、次の手順を実行します。

Router 101 での RSA 鍵の作成

101#show crypto key mypubkey rsa
101#
101#
101#conf t
101(config)#ip domain-name cisco.com
101(config)#crypto key generate rsa ?
  general-keys  Generate a general purpose RSA key pair for signing and
                encryption
  usage-keys    Generate seperate RSA key pairs for signing and encryption


101(config)#crypto key generate rsa
The name for the keys will be: 101.cisco.com
Choose the size of the key modulus in the range of 360 to 2048 for your
  General Purpose Keys. Choosing a key modulus greater than 512 may take
  a few minutes.

How many bits in the modulus [512]:
% Generating 512 bit RSA keys ...[OK]

101#show crypto key mypubkey rsa
% Key pair was generated at: 12:02:08 PST Dec 28 2002
Key name: 101.cisco.com
 Usage: General Purpose Key
 Key Data:
  305C300D 06092A86 4886F70D 01010105 00034B00 30480241 00A7D24F E6E15787
  5EE1434A A76A3DC1 ADE96A4D C6B4D0F3 A7DDAD10 446EF83A 89D1115F 0C517118
  ECAF418E F4C84823 2A017B97 F85690EF EBCF3414 AB3E81F6 A5020301 0001
% Key pair was generated at: 12:02:12 PST Dec 28 2002
Key name: 101.cisco.com.server
 Usage: Encryption Key
 Key Data:
  307C300D 06092A86 4886F70D 01010105 00036B00 30680261 00B2092A 86483641
  EB09900B BA0CD88A BE915C5E 05C1496B 70093D8B BC277A88 0E256BBE 4DB7EF92
  8FE93C61 710309A3 451DAB72 93F35CD0 1CAD15AC B904B2B4 73B7A9F5 65A79E66
  8D145427 F06DD89C 862B88BB 4C671508 AB3443BB 6270388C A7020301 0001
101#

Router 102 での RSA 鍵の作成

102#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
102(config)#ip domain-name cisco.com
102(config)#crypto key gen rsa
The name for the keys will be: 102.cisco.com
Choose the size of the key modulus in the range of 360 to 2048 for your
  General Purpose Keys. Choosing a key modulus greater than 512 may take
  a few minutes.

How many bits in the modulus [512]:
% Generating 512 bit RSA keys ...[OK]


102#show crypto key mypubkey rsa
% Key pair was generated at: 12:03:45 PST Dec 28 2002
Key name: 102.cisco.com
 Usage: General Purpose Key
 Key Data:
  305C300D 06092A86 4886F70D 01010105 00034B00 30480241 00DB4FEB EF0C0D3D
  72FC5BD3 29C8E94B 726161BC F1AF337C E5F2D11D FBFC2245 95EA2AB7 9D09156C
  08A5A7CD 36E43D94 F1E3C978 37A79379 384D2A72 CE575E91 3F020301 0001
% Key pair was generated at: 12:03:48 PST Dec 28 2002
Key name: 102.cisco.com.server
 Usage: Encryption Key
 Key Data:
  307C300D 06092A86 4886F70D 01010105 00036B00 30680261 00BFD36E A1642BFC
  77C88F89 8A260840 213E122E E1AF1E24 AF39B984 DACA06BC C303AD77 95BB6B6C
  89CC6D13 B16CC4E3 45C101E4 61A13924 5559891A AB59B40D 826A5066 231B48D6
  AEB2B367 94F6C492 016F8778 74B368A2 BFD1424D 79C63C94 5F020301 0001
102#

ホスト名の解決を行います。

102(config)#ip host 101.cisco.com  20.1.1.1

Router 101 での汎用鍵の交換

101(config)#crypto key pubkey-chain rsa
101(config-pubkey-chain)#named-key 102.cisco.com
% Named public key resolved to ip address: 20.1.1.2
101(config-pubkey-key)#key-string ?
Enter a public key as a hexidecimal number ....


101(config-pubkey)#$6F70D 01010105 00034B00 30480241 00DB4FEB EF0C0D3D
101(config-pubkey)#$26161BC F1AF337C E5F2D11D FBFC2245 95EA2AB7 9D09156C
101(config-pubkey)#$1E3C978 37A79379 384D2A72 CE575E91 3F020301 0001
101(config-pubkey)#quit
101(config-pubkey-key)#exit

Router 102 での汎用鍵の交換

102(config)#crypto key pubkey-chain rsa
102(config-pubkey-chain)#named-key 101.cisco.com
% Named public key resolved to ip address: 20.1.1.1
102(config-pubkey-key)#key-string
Enter a public key as a hexidecimal number ....

102(config-pubkey)#$6F70D 01010105 00034B00 30480241 00A7D24F E6E15787
102(config-pubkey)#$DE96A4D C6B4D0F3 A7DDAD10 446EF83A 89D1115F 0C517118
102(config-pubkey)#$A017B97 F85690EF EBCF3414 AB3E81F6 A5020301 0001
102(config-pubkey)#quit
102(config-pubkey-key)#exit
102(config-pubkey-chain)#exit
102(config)#exit

トラブルシューティングのためのコマンド

注：debugコマンドを発行する前に、『debugコマンドの重要な情報』を参照してください。

Router 101 のデバッグ：

101#
101#
101#
101#
*Dec 28 21:14:27.011: IPSEC(sa_request): ,
  (key eng. msg.) OUTBOUND local= 20.1.1.1, remote= 20.1.1.2,
    local_proxy= 20.1.1.1/255.255.255.255/47/0 (type=1),
    remote_proxy= 20.1.1.2/255.255.255.255/47/0 (type=1),
    protocol= ESP, transform= esp-des esp-sha-hmac ,
    lifedur= 3600s and 4608000kb,
    spi= 0xA12DDC39(2704137273), conn_id= 0, keysize= 0, flags= 0x400C
*Dec 28 21:14:27.051: ISAKMP: received ke message (1/1)
*Dec 28 21:14:27.051: ISAKMP: local port 500, remote port 500
*Dec 28 21:14:27.099: ISAKMP: set new node 0 to QM_IDLE
*Dec 28 21:14:27.099: ISAKMP (0:14): constructed NAT-T vendor-03 ID
*Dec 28 21:14:27.099: ISAKMP (0:14): constructed NAT-T vendor-02 ID
*Dec 28 21:14:27.099: ISAKMP (0:14): Input = IKE_MESG_FROM_IPSEC, IKE_SA_REQ_MM
*Dec 28 21:14:27.099: ISAKMP (0:14): Old State = IKE_READY  New State = IKE_I_MM1

*Dec 28 21:14:27.099: ISAKMP (0:14): beginning Main Mode exchange
*Dec 28 21:14:27.099: ISAKMP (0:14): sending packet to 20.1.1.2 my_port 
 500 peer_port 500 (I) MM_NO_STATE
*Dec 28 21:14:27.343: ISAKMP (0:14): received packet from 20.1.1.2 dport 
 500 sport 500 (I) MM_NO_STATE
*Dec 28 21:14:27.343: ISAKMP (0:14): Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
*Dec 28 21:14:27.343: ISAKMP (0:14): Old State = IKE_I_MM1  New State = IKE_I_MM2

*Dec 28 21:14:27.411: ISAKMP (0:14): processing SA payload. message ID = 0
*Dec 28 21:14:27.411: ISAKMP (0:14): processing vendor id payload
*Dec 28 21:14:27.411: ISAKMP (0:14): vendor ID seems Unity/DPD but bad major
*Dec 28 21:14:27.411: ISAKMP (0:14): vendor ID is NAT-T
*Dec 28 21:14:27.411: ISAKMP (0:14): Checking ISAKMP transform 1 against priority 1 policy
*Dec 28 21:14:27.411: ISAKMP:      encryption DES-CBC
*Dec 28 21:14:27.411: ISAKMP:      hash SHA
*Dec 28 21:14:27.411: ISAKMP:      default group 1
*Dec 28 21:14:27.411: ISAKMP:      auth RSA sig
*Dec 28 21:14:27.411: ISAKMP:      life type in seconds
*Dec 28 21:14:27.411: ISAKMP:      life duration (VPI) of  0x0 0x1 0x51 0x80
*Dec 28 21:14:27.411: ISAKMP (0:14): Authentication method offered does not 
 match policy!
*Dec 28 21:14:27.411: ISAKMP (0:14): atts are not acceptable. Next payload is 0
*Dec 28 21:14:27.411: ISAKMP (0:14): Checking ISAKMP transform 1 against 
 priority 65535 policy
*Dec 28 21:14:27.411: ISAKMP:      encryption DES-CBC
*Dec 28 21:14:27.411: ISAKMP:      hash SHA
*Dec 28 21:14:27.411: ISAKMP:      default group 1
*Dec 28 21:14:27.411: ISAKMP:      auth RSA sig
*Dec 28 21:14:27.411: ISAKMP:      life type in seconds
*Dec 28 21:14:27.411: ISAKMP:      life duration (VPI) of  0x0 0x1 0x51 0x80
*Dec 28 21:14:27.411: ISAKMP (0:14): atts are acceptable. Next payload is 0
*Dec 28 21:14:27.411: ISAKMP (0:14): processing vendor id payload
*Dec 28 21:14:27.411: ISAKMP (0:14): vendor ID seems Unity/DPD but bad major
*Dec 28 21:14:27.411: ISAKMP (0:14): vendor ID is NAT-T
*Dec 28 21:14:27.411: ISAKMP (0:14): Input = IKE_MESG_INTERNAL, 
 IKE_PROCESS_MAIN_MODE
*Dec 28 21:14:27.411: ISAKMP (0:14): Old State = IKE_I_MM2  
 New State = IKE_I_MM2

*Dec 28 21:14:27.503: ISAKMP (0:14): constructed HIS NAT-D
*Dec 28 21:14:27.503: ISAKMP (0:14): constructed MINE NAT-D
*Dec 28 21:14:27.503: ISAKMP (0:14): sending packet to 20.1.1.2 my_port 
 500 peer_port 500 (I) MM_SA_SETUP
*Dec 28 21:14:27.503: ISAKMP (0:14): Input = IKE_MESG_INTERNAL, 
 IKE_PROCESS_COMPLETE
*Dec 28 21:14:27.503: ISAKMP (0:14): Old State = IKE_I_MM2  New State = IKE_I_MM3

*Dec 28 21:14:27.763: ISAKMP (0:14): received packet from 20.1.1.2 dport 
 500 sport 500 (I) MM_SA_SETUP
*Dec 28 21:14:27.763: ISAKMP (0:14): Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
*Dec 28 21:14:27.763: ISAKMP (0:14): Old State = IKE_I_MM3  New State = IKE_I_MM4

*Dec 28 21:14:27.811: ISAKMP (0:14): processing KE payload. message ID = 0
*Dec 28 21:14:27.811: ISAKMP (0:14): processing NONCE payload. message ID = 0
*Dec 28 21:14:27.811: ISAKMP (0:14): SKEYID state generated
*Dec 28 21:14:27.811: ISAKMP (0:14): processing vendor id payload
*Dec 28 21:14:27.811: ISAKMP (0:14): vendor ID is Unity
*Dec 28 21:14:27.811: ISAKMP (0:14): vendor ID is NAT-T
*Dec 28 21:14:27.811: ISAKMP (0:14): processing vendor id payload
*Dec 28 21:14:27.811: ISAKMP (0:14): vendor ID is DPD
*Dec 28 21:14:27.811: ISAKMP (0:14): vendor ID is NAT-T
*Dec 28 21:14:27.811: ISAKMP (0:14): processing vendor id payload
*Dec 28 21:14:27.811: ISAKMP (0:14): speaking to another IOS box!
*Dec 28 21:14:27.811: ISAKMP:received payload type 17
*Dec 28 21:14:27.811: ISAKMP (0:14): Detected NAT-D payload
*Dec 28 21:14:27.811: ISAKMP (0:14): NAT match MINE hash
*Dec 28 21:14:27.811: ISAKMP:received payload type 17
*Dec 28 21:14:27.811: ISAKMP (0:14): Detected NAT-D payload
*Dec 28 21:14:27.811: ISAKMP (0:14): NAT match HIS hash
*Dec 28 21:14:27.811: ISAKMP (0:14): Input = IKE_MESG_INTERNAL, 
 IKE_PROCESS_MAIN_MODE
*Dec 28 21:14:27.811: ISAKMP (0:14): Old State = IKE_I_MM4  
 New State = IKE_I_MM4

*Dec 28 21:14:27.903: ISAKMP (0:14): Send initial contact
*Dec 28 21:14:27.903: ISAKMP (0:14): SA is doing RSA signature 
 authentication using id type ID_FQDN
*Dec 28 21:14:27.903: ISAKMP (14): ID payload
        next-payload : 9
        type         : 2
        FQDN name    : 101.cisco.com
        protocol     : 17
        port         : 0
        length       : 17
*Dec 28 21:14:27.903: ISAKMP (14): Total payload length: 21
*Dec 28 21:14:27.903: ISAKMP (0:14): using the default keypair to sign
*Dec 28 21:14:28.003: ISAKMP (0:14): sending packet to 20.1.1.2 
 my_port 500 peer_port 500 (I) MM_KEY_EXCH
*Dec 28 21:14:28.003: ISAKMP (0:14): Input = IKE_MESG_INTERNAL, 
 IKE_PROCESS_COMPLETE
*Dec 28 21:14:28.003: ISAKMP (0:14): Old State = IKE_I_MM4  New State = IKE_I_MM5

*Dec 28 21:14:28.435: ISAKMP (0:14): received packet from 20.1.1.2 dport 
 500 sport 500 (I) MM_KEY_EXCH
*Dec 28 21:14:28.435: ISAKMP (0:14): Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
*Dec 28 21:14:28.435: ISAKMP (0:14): Old State = IKE_I_MM5  New State = IKE_I_MM6

*Dec 28 21:14:28.435: ISAKMP (0:14): received packet from 20.1.1.2 dport 
 500 sport 500 (I) MM_KEY_EXCH
*Dec 28 21:14:28.435: ISAKMP: set new node 226463539 to QM_IDLE
*Dec 28 21:14:28.435: ISAKMP (0:14): Unknown Input: state = IKE_I_MM6, 
 major, minor = IKE_MESG_FROM_PEER, IKE_INFO_DELETE

*Dec 28 21:14:28.435: %CRYPTO-6-IKMP_MODE_FAILURE: Processing of 
 Informational mode failed with peer at 20.1.1.2
*Dec 28 21:14:28.503: ISAKMP (0:14): processing ID payload. message ID = 0
*Dec 28 21:14:28.503: ISAKMP (14): Process ID payload
        type         : 2
        FQDN name    : 102.cisco.com
        protocol     : 17
        port         : 0
        length       : 13
*Dec 28 21:14:28.503: ISAKMP (0:14): processing SIG payload. message ID = 0
*Dec 28 21:14:28.503: ISAKMP (14): sa->peer.name = , sa->peer_id.id.id_fqdn.fqdn = 
 102.cisco.com
*Dec 28 21:14:28.551: ISAKMP (0:14): SA has been authenticated with 20.1.1.2
*Dec 28 21:14:28.551: ISAKMP (0:14): IKE_DPD is enabled, initializing timers
*Dec 28 21:14:28.551: ISAKMP: Locking peer struct 0x18E6620, IKE refcount 2 
 for from crypto_ikmp_dpd_ike_init
*Dec 28 21:14:28.551: ISAKMP (0:14): Input = IKE_MESG_INTERNAL, 
 IKE_PROCESS_MAIN_MODE
*Dec 28 21:14:28.551: ISAKMP (0:14): Old State = IKE_I_MM6  New State = IKE_I_MM6

*Dec 28 21:14:28.551: ISAKMP (0:14): received packet from 20.1.1.2 dport 500 sport 
 500 (I) MM_KEY_EXCH
*Dec 28 21:14:28.551: ISAKMP: set new node 2089493550 to QM_IDLE
*Dec 28 21:14:28.551: ISAKMP (0:14): Unknown Input: state = IKE_I_MM6, major, 
 minor = IKE_MESG_FROM_PEER, IKE_INFO_DELETE

*Dec 28 21:14:28.611: ISAKMP (0:14): Input = IKE_MESG_INTERNAL, 
 IKE_PROCESS_COMPLETE
*Dec 28 21:14:28.611: ISAKMP (0:14): Old State = IKE_I_MM6  
 New State = IKE_P1_COMPLETE

*Dec 28 21:14:28.651: ISAKMP (0:14): beginning Quick Mode exchange, 
 M-ID of 543282640
*Dec 28 21:14:28.683: ISAKMP (0:14): sending packet to 20.1.1.2 
 my_port 500 peer_port 500 (I) QM_IDLE
*Dec 28 21:14:28.683: ISAKMP (0:14): Node 543282640, Input = IKE_MESG_INTERNAL, 
 IKE_INIT_QM
*Dec 28 21:14:28.683: ISAKMP (0:14): Old State = IKE_QM_READY  
 New State = IKE_QM_I_QM1
*Dec 28 21:14:28.683: ISAKMP (0:14): Input = IKE_MESG_INTERNAL, 
 IKE_PHASE1_COMPLETE
*Dec 28 21:14:28.683: ISAKMP (0:14): Old State = IKE_P1_COMPLETE  
 New State = IKE_P1_COMPLETE

*Dec 28 21:14:29.303: ISAKMP (0:14): received packet from 20.1.1.2 
 dport 500 sport 500 (I) QM_IDLE
*Dec 28 21:14:29.303: ISAKMP (0:14): processing HASH payload. message 
 ID = 543282640
*Dec 28 21:14:29.303: ISAKMP (0:14): processing SA payload. message 
 ID = 543282640
*Dec 28 21:14:29.303: ISAKMP (0:14): Checking IPSec proposal 1
*Dec 28 21:14:29.303: ISAKMP: transform 1, ESP_DES
*Dec 28 21:14:29.303: ISAKMP:   attributes in transform:
*Dec 28 21:14:29.303: ISAKMP:      encaps is 2
*Dec 28 21:14:29.303: ISAKMP:      SA life type in seconds
*Dec 28 21:14:29.303: ISAKMP:      SA life duration (basic) of 3600
*Dec 28 21:14:29.303: ISAKMP:      SA life type in kilobytes
*Dec 28 21:14:29.303: ISAKMP:      SA life duration (VPI) of  0x0 0x46 0x50 0x0
*Dec 28 21:14:29.303: ISAKMP:      authenticator is HMAC-SHA
*Dec 28 21:14:29.303: ISAKMP (0:14): atts are acceptable.
*Dec 28 21:14:29.303: IPSEC(validate_proposal_request): proposal part #1,
  (key eng. msg.) INBOUND local= 20.1.1.1, remote= 20.1.1.2,
    local_proxy= 20.1.1.1/255.255.255.255/47/0 (type=1),
    remote_proxy= 20.1.1.2/255.255.255.255/47/0 (type=1),
    protocol= ESP, transform= esp-des esp-sha-hmac ,
    lifedur= 0s and 0kb,
    spi= 0x0(0), conn_id= 0, keysize= 0, flags= 0x4
*Dec 28 21:14:29.303: ISAKMP (0:14): processing NONCE payload. 
 message ID = 543282640
*Dec 28 21:14:29.303: ISAKMP (0:14): processing ID payload. message ID = 543282640
*Dec 28 21:14:29.303: ISAKMP (0:14): processing ID payload. message ID = 543282640
*Dec 28 21:14:29.351: ISAKMP: Locking peer struct 0x18E6620, IPSEC refcount 1 
 for for stuff_ke
*Dec 28 21:14:29.351: ISAKMP (0:14): Creating IPSec SAs
*Dec 28 21:14:29.351:         inbound SA from 20.1.1.2 to 20.1.1.1
        (proxy 20.1.1.2 to 20.1.1.1)
*Dec 28 21:14:29.351:         has spi 0xA12DDC39 and conn_id 2000 and flags 4
*Dec 28 21:14:29.351:         lifetime of 3600 seconds
*Dec 28 21:14:29.351:         lifetime of 4608000 kilobytes
*Dec 28 21:14:29.351:         has client flags 0x0
*Dec 28 21:14:29.351:         outbound SA from 20.1.1.1  
to 20.1.1.2  (proxy 20.1.1.1        to  20.1.1.2       )
*Dec 28 21:14:29.351:         has spi -437189881 and conn_id 2001 and flags C
*Dec 28 21:14:29.351:         lifetime of 3600 seconds
*Dec 28 21:14:29.351:         lifetime of 4608000 kilobytes
*Dec 28 21:14:29.351:         has client flags 0x0
*Dec 28 21:14:29.351: ISAKMP (0:14): sending packet to 20.1.1.2 my_port 
 500 peer_port 500 (I) QM_IDLE
*Dec 28 21:14:29.351: ISAKMP (0:14): deleting node 543282640 error 
 FALSE reason ""
*Dec 28 21:14:29.351: ISAKMP (0:14): Node 543282640, Input = IKE_MESG_FROM_PEER, 
 IKE_QM_EXCH
*Dec 28 21:14:29.351: ISAKMP (0:14): Old State = IKE_QM_I_QM1  
 New State = IKE_QM_PHASE2_COMPLETE
*Dec 28 21:14:29.371: IPSEC(key_engine): got a queue event...
*Dec 28 21:14:29.371: IPSEC(initialize_sas): ,
  (key eng. msg.) INBOUND local= 20.1.1.1, remote= 20.1.1.2,
    local_proxy= 20.1.1.1/0.0.0.0/47/0 (type=1),
    remote_proxy= 20.1.1.2/0.0.0.0/47/0 (type=1),
    protocol= ESP, transform= esp-des esp-sha-hmac ,
    lifedur= 3600s and 4608000kb,
    spi= 0xA12DDC39(2704137273), conn_id= 2000, keysize= 0, flags= 0x4
*Dec 28 21:14:29.371: IPSEC(initialize_sas): ,
  (key eng. msg.) OUTBOUND local= 20.1.1.1, remote= 20.1.1.2,
    local_proxy= 20.1.1.1/0.0.0.0/47/0 (type=1),
    remote_proxy= 20.1.1.2/0.0.0.0/47/0 (type=1),
    protocol= ESP, transform= esp-des esp-sha-hmac ,
    lifedur= 3600s and 4608000kb,
    spi= 0xE5F10307(3857777415), conn_id= 2001, keysize= 0, flags= 0xC
*Dec 28 21:14:29.371: IPSEC(add mtree): src 20.1.1.1, dest 20.1.1.2, dest_port 0

*Dec 28 21:14:29.371: IPSEC(create_sa): sa created,
  (sa) sa_dest= 20.1.1.1, sa_prot= 50,
    sa_spi= 0xA12DDC39(2704137273),
    sa_trans= esp-des esp-sha-hmac , sa_conn_id= 2000
*Dec 28 21:14:29.371: IPSEC(create_sa): sa created,
  (sa) sa_dest= 20.1.1.2, sa_prot= 50,
    sa_spi= 0xE5F10307(3857777415),
    sa_trans= esp-des esp-sha-hmac , sa_conn_id= 2001

Router 102 のデバッグ：

102#
*Dec 28 21:18:12.111: ISAKMP (0:0): received packet from 20.1.1.1 
dport 500 sport 500 (N) NEW SA
*Dec 28 21:18:12.111: ISAKMP: local port 500, remote port 500
*Dec 28 21:18:12.147: ISAKMP (0:15): Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
*Dec 28 21:18:12.147: ISAKMP (0:15): Old State = IKE_READY  New State = IKE_R_MM1

*Dec 28 21:18:12.187: ISAKMP (0:15): processing SA payload. message ID = 0
*Dec 28 21:18:12.187: ISAKMP (0:15): processing vendor id payload
*Dec 28 21:18:12.187: ISAKMP (0:15): vendor ID seems Unity/DPD but bad major
*Dec 28 21:18:12.187: ISAKMP (0:15): vendor ID is NAT-T
*Dec 28 21:18:12.187: ISAKMP (0:15): processing vendor id payload
*Dec 28 21:18:12.187: ISAKMP (0:15): vendor ID seems Unity/DPD but bad major
*Dec 28 21:18:12.187: ISAKMP (0:15): vendor ID is NAT-T
*Dec 28 21:18:12.187: ISAKMP (0:15): Checking ISAKMP transform 1 against 
priority 1 policy
*Dec 28 21:18:12.187: ISAKMP:      encryption DES-CBC
*Dec 28 21:18:12.187: ISAKMP:      hash SHA
*Dec 28 21:18:12.187: ISAKMP:      default group 1
*Dec 28 21:18:12.187: ISAKMP:      auth RSA sig
*Dec 28 21:18:12.187: ISAKMP:      life type in seconds
*Dec 28 21:18:12.187: ISAKMP:      life duration (VPI) of  0x0 0x1 0x51 0x80
*Dec 28 21:18:12.187: ISAKMP (0:15): Authentication method offered does not 
 match policy!
*Dec 28 21:18:12.187: ISAKMP (0:15): atts are not acceptable. Next payload is 0
*Dec 28 21:18:12.187: ISAKMP (0:15): Checking ISAKMP transform 1 against  
 priority 65535 policy
*Dec 28 21:18:12.187: ISAKMP:      encryption DES-CBC
*Dec 28 21:18:12.187: ISAKMP:      hash SHA
*Dec 28 21:18:12.187: ISAKMP:      default group 1
*Dec 28 21:18:12.187: ISAKMP:      auth RSA sig
*Dec 28 21:18:12.187: ISAKMP:      life type in seconds
*Dec 28 21:18:12.187: ISAKMP:      life duration (VPI) of  0x0 0x1 0x51 0x80
*Dec 28 21:18:12.187: ISAKMP (0:15): atts are acceptable. Next payload is 0
*Dec 28 21:18:12.187: ISAKMP (0:15): processing vendor id payload
*Dec 28 21:18:12.187: ISAKMP (0:15): vendor ID seems Unity/DPD but bad major
*Dec 28 21:18:12.187: ISAKMP (0:15): vendor ID is NAT-T
*Dec 28 21:18:12.187: ISAKMP (0:15): processing vendor id payload
*Dec 28 21:18:12.187: ISAKMP (0:15): vendor ID seems Unity/DPD but bad major
*Dec 28 21:18:12.187: ISAKMP (0:15): vendor ID is NAT-T
*Dec 28 21:18:12.187: ISAKMP (0:15): Input = IKE_MESG_INTERNAL, 
 IKE_PROCESS_MAIN_MODE
*Dec 28 21:18:12.187: ISAKMP (0:15): Old State = IKE_R_MM1  New State = IKE_R_MM1

*Dec 28 21:18:12.255: ISAKMP (0:15): constructed NAT-T vendor-03 ID
*Dec 28 21:18:12.255: ISAKMP (0:15): sending packet to 20.1.1.1 my_port
 500 peer_port 500 (R) MM_SA_SETUP 
*Dec 28 21:18:12.255: ISAKMP (0:15): Input = IKE_MESG_INTERNAL, 
 IKE_PROCESS_COMPLETE
*Dec 28 21:18:12.255: ISAKMP (0:15): Old State = IKE_R_MM1  New State = IKE_R_MM2

*Dec 28 21:18:12.563: ISAKMP (0:15): received packet from 20.1.1.1 dport 
 500 sport 500 (R) MM_SA_SETUP
*Dec 28 21:18:12.563: ISAKMP (0:15): Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
*Dec 28 21:18:12.563: ISAKMP (0:15): Old State = IKE_R_MM2  New State = IKE_R_MM3

*Dec 28 21:18:12.619: ISAKMP (0:15): processing KE payload. message ID = 0
*Dec 28 21:18:12.619: ISAKMP (0:15): processing NONCE payload. message ID = 0
*Dec 28 21:18:12.695: ISAKMP (0:15): SKEYID state generated
*Dec 28 21:18:12.695: ISAKMP (0:15): processing vendor id payload
*Dec 28 21:18:12.695: ISAKMP (0:15): vendor ID is Unity
*Dec 28 21:18:12.695: ISAKMP (0:15): vendor ID is NAT-T
*Dec 28 21:18:12.695: ISAKMP (0:15): processing vendor id payload
*Dec 28 21:18:12.695: ISAKMP (0:15): vendor ID is DPD
*Dec 28 21:18:12.695: ISAKMP (0:15): vendor ID is NAT-T
*Dec 28 21:18:12.695: ISAKMP (0:15): processing vendor id payload
*Dec 28 21:18:12.695: ISAKMP (0:15): speaking to another IOS box!
*Dec 28 21:18:12.695: ISAKMP:received payload type 17
*Dec 28 21:18:12.695: ISAKMP (0:15): Detected NAT-D payload
*Dec 28 21:18:12.695: ISAKMP (0:15): NAT match MINE hash
*Dec 28 21:18:12.695: ISAKMP:received payload type 17
*Dec 28 21:18:12.695: ISAKMP (0:15): Detected NAT-D payload
*Dec 28 21:18:12.695: ISAKMP (0:15): NAT match HIS hash
*Dec 28 21:18:12.695: ISAKMP (0:15): Input = IKE_MESG_INTERNAL, 
 IKE_PROCESS_MAIN_MODE
*Dec 28 21:18:12.695: ISAKMP (0:15): Old State = IKE_R_MM3  
 New State = IKE_R_MM3

*Dec 28 21:18:12.735: ISAKMP (0:15): constructed HIS NAT-D
*Dec 28 21:18:12.735: ISAKMP (0:15): constructed MINE NAT-D
*Dec 28 21:18:12.735: ISAKMP (0:15): sending packet to 20.1.1.1 
 my_port 500 peer_port 500 (R) 
MM_KEY_EXCH *Dec 28 21:18:12.735: ISAKMP (0:15): Input = IKE_MESG_INTERNAL, 
 IKE_PROCESS_COMPLETE
*Dec 28 21:18:12.735: ISAKMP (0:15): Old State = IKE_R_MM3  New State = IKE_R_MM4

*Dec 28 21:18:13.395: ISAKMP (0:15): received packet from 20.1.1.1 dport 
 500 sport 500 (R) MM_KEY_EXCH
*Dec 28 21:18:13.395: ISAKMP (0:15): Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
*Dec 28 21:18:13.395: ISAKMP (0:15): Old State = IKE_R_MM4  New State = IKE_R_MM5

*Dec 28 21:18:13.435: ISAKMP (0:15): processing ID payload. message ID = 0
*Dec 28 21:18:13.435: ISAKMP (15): Process ID payload
        type         : 2
        FQDN name    : 101.cisco.com
        protocol     : 17
        port         : 0
        length       : 13
*Dec 28 21:18:13.435: ISAKMP (0:15): processing SIG payload. message ID = 0
*Dec 28 21:18:13.435: ISAKMP (15): sa->peer.name = , 
 sa->peer_id.id.id_fqdn.fqdn = 101.cisco.com
*Dec 28 21:18:13.567: ISAKMP:received payload type 14
*Dec 28 21:18:13.567: ISAKMP (0:15): processing NOTIFY INITIAL_CONTACT protocol 1
        spi 0, message ID = 0, sa = 1AD8D08
*Dec 28 21:18:13.567: ISAKMP (0:15): Process initial contact,
bring down existing phase 1 and 2 SA's with local 20.1.1.2 remote 20.1.1.1 
 remote port 500
*Dec 28 21:18:13.587: ISAKMP (0:15): SA has been authenticated with 20.1.1.1
*Dec 28 21:18:13.587: ISAKMP (0:15): IKE_DPD is enabled, initializing timers
*Dec 28 21:18:13.587: ISAKMP: Locking peer struct 0x18EA370, IKE refcount 2 
 for from crypto_ikmp_dpd_ike_init
*Dec 28 21:18:13.587: ISAKMP (0:15): Input = IKE_MESG_INTERNAL, 
 IKE_PROCESS_MAIN_MODE
*Dec 28 21:18:13.587: ISAKMP (0:15): Old State = IKE_R_MM5  New State = IKE_R_MM5

*Dec 28 21:18:13.599: IPSEC(key_engine): got a queue event...
*Dec 28 21:18:13.627: ISAKMP (0:15): SA is doing RSA signature authentication 
 using id type ID_FQDN
*Dec 28 21:18:13.627: ISAKMP (15): ID payload
        next-payload : 9
        type         : 2
        FQDN name    : 102.cisco.com
        protocol     : 17
        port         : 0
        length       : 17
*Dec 28 21:18:13.627: ISAKMP (15): Total payload length: 21
*Dec 28 21:18:13.627: ISAKMP (0:15): using the default keypair to sign
*Dec 28 21:18:13.731: ISAKMP (0:15): sending packet to 20.1.1.1 my_port 
 500 peer_port 500 (R) MM_KEY_EXCH 
*Dec 28 21:18:13.731: ISAKMP (0:15): Input = IKE_MESG_INTERNAL, 
 IKE_PROCESS_COMPLETE
*Dec 28 21:18:13.731: ISAKMP (0:15): Old State = IKE_R_MM5  
 New State = IKE_P1_COMPLETE

*Dec 28 21:18:13.779: ISAKMP (0:15): Input = IKE_MESG_INTERNAL, 
 IKE_PHASE1_COMPLETE
*Dec 28 21:18:13.779: ISAKMP (0:15): Old State = IKE_P1_COMPLETE  
 New State = IKE_P1_COMPLETE

*Dec 28 21:18:14.215: ISAKMP (0:15): received packet from 20.1.1.1 
 dport 500 sport 500 (R) QM_IDLE
*Dec 28 21:18:14.215: ISAKMP: set new node 1098460553 to QM_IDLE
*Dec 28 21:18:14.215: ISAKMP (0:15): processing HASH payload. 
 message ID = 1098460553
*Dec 28 21:18:14.215: ISAKMP (0:15): processing SA payload. 
 message ID = 1098460553
*Dec 28 21:18:14.215: ISAKMP (0:15): Checking IPSec proposal 1
*Dec 28 21:18:14.215: ISAKMP: transform 1, ESP_DES
*Dec 28 21:18:14.215: ISAKMP:   attributes in transform:
*Dec 28 21:18:14.215: ISAKMP:      encaps is 2
*Dec 28 21:18:14.215: ISAKMP:      SA life type in seconds
*Dec 28 21:18:14.215: ISAKMP:      SA life duration (basic) of 3600
*Dec 28 21:18:14.215: ISAKMP:      SA life type in kilobytes
*Dec 28 21:18:14.215: ISAKMP:      SA life duration (VPI) of  0x0 0x46 0x50 0x0
*Dec 28 21:18:14.215: ISAKMP:      authenticator is HMAC-SHA
*Dec 28 21:18:14.215: ISAKMP (0:15): atts are acceptable.
*Dec 28 21:18:14.215: IPSEC(validate_proposal_request): proposal part #1,
  (key eng. msg.) INBOUND local= 20.1.1.2, remote= 20.1.1.1,
    local_proxy= 20.1.1.2/255.255.255.255/47/0 (type=1),
    remote_proxy= 20.1.1.1/255.255.255.255/47/0 (type=1),
    protocol= ESP, transform= esp-des esp-sha-hmac ,
    lifedur= 0s and 0kb,
    spi= 0x0(0), conn_id= 0, keysize= 0, flags= 0x4
*Dec 28 21:18:14.215: ISAKMP (0:15): processing NONCE payload. 
 message ID = 1098460553
*Dec 28 21:18:14.215: ISAKMP (0:15): processing ID payload. 
 message ID = 1098460553
*Dec 28 21:18:14.215: ISAKMP (0:15): processing ID payload. 
 message ID = 1098460553
*Dec 28 21:18:14.215: ISAKMP (0:15): asking for 1 spis from ipsec
*Dec 28 21:18:14.215: ISAKMP (0:15): Node 1098460553, Input = IKE_MESG_FROM_PEER, 
 IKE_QM_EXCH
*Dec 28 21:18:14.215: ISAKMP (0:15): Old State = IKE_QM_READY  
 New State = IKE_QM_SPI_STARVE
*Dec 28 21:18:14.235: IPSEC(key_engine): got a queue event...
*Dec 28 21:18:14.235: IPSEC(spi_response): getting spi 488964414 for SA
        from 20.1.1.2        to 20.1.1.1        for prot 3
*Dec 28 21:18:14.267: ISAKMP: received ke message (2/1)
*Dec 28 21:18:14.547: ISAKMP (0:15): sending packet to 20.1.1.1 my_port 
 500 peer_port 500 (R) QM_IDLE

*Dec 28 21:18:14.547: ISAKMP (0:15): Node 1098460553, Input = IKE_MESG_FROM_IPSEC, 
 IKE_SPI_REPLY
*Dec 28 21:18:14.547: ISAKMP (0:15): Old State = IKE_QM_SPI_STARVE  
 New State = IKE_QM_R_QM2
*Dec 28 21:18:14.707: ISAKMP (0:15): received packet from 20.1.1.1 
 dport 500 sport 500 (R) QM_IDLE
*Dec 28 21:18:14.747: ISAKMP: Locking peer struct 0x18EA370, IPSEC 
 refcount 1 for for stuff_ke
*Dec 28 21:18:14.747: ISAKMP (0:15): Creating IPSec SAs
*Dec 28 21:18:14.747:         inbound SA from 20.1.1.1 to 20.1.1.2
        (proxy 20.1.1.1 to 20.1.1.2)
*Dec 28 21:18:14.747:         has spi 0x1D25013E and conn_id 2000 and flags 4
*Dec 28 21:18:14.747:         lifetime of 3600 seconds
*Dec 28 21:18:14.747:         lifetime of 4608000 kilobytes
*Dec 28 21:18:14.747:         has client flags 0x0
*Dec 28 21:18:14.747:         outbound SA from 20.1.1.2        to 20.1.1.1        
(proxy 20.1.1.2        to 20.1.1.1       )
*Dec 28 21:18:14.747:         has spi -1829425422 and conn_id 2001 and flags C
*Dec 28 21:18:14.747:         lifetime of 3600 seconds
*Dec 28 21:18:14.747:         lifetime of 4608000 kilobytes
*Dec 28 21:18:14.747:         has client flags 0x0
*Dec 28 21:18:14.747: ISAKMP (0:15): deleting node 1098460553 error FALSE 
 reason "quick mode done (await()"
*Dec 28 21:18:14.747: ISAKMP (0:15): Node 1098460553, Input = IKE_MESG_FROM_PEER, 
 IKE_QM_EXCH
*Dec 28 21:18:14.747: ISAKMP (0:15): Old State = IKE_QM_R_QM2  
 New State = IKE_QM_PHASE2_COMPLETE
*Dec 28 21:18:14.767: IPSEC(key_engine): got a queue event...
*Dec 28 21:18:14.767: IPSEC(initialize_sas): ,
  (key eng. msg.) INBOUND local= 20.1.1.2, remote= 20.1.1.1,
    local_proxy= 20.1.1.2/0.0.0.0/47/0 (type=1),
    remote_proxy= 20.1.1.1/0.0.0.0/47/0 (type=1),
    protocol= ESP, transform= esp-des esp-sha-hmac ,
    lifedur= 3600s and 4608000kb,
    spi= 0x1D25013E(488964414), conn_id= 2000, keysize= 0, flags= 0x4
*Dec 28 21:18:14.767: IPSEC(initialize_sas): ,
  (key eng. msg.) OUTBOUND local= 20.1.1.2, remote= 20.1.1.1,
    local_proxy= 20.1.1.2/0.0.0.0/47/0 (type=1),
    remote_proxy= 20.1.1.1/0.0.0.0/47/0 (type=1),
    protocol= ESP, transform= esp-des esp-sha-hmac ,
    lifedur= 3600s and 4608000kb,
    spi= 0x92F52EF2(2465541874), conn_id= 2001, keysize= 0, flags= 0xC
*Dec 28 21:18:14.767: IPSEC(add mtree): src 20.1.1.2, dest 20.1.1.1, dest_port 0

*Dec 28 21:18:14.767: IPSEC(create_sa): sa created,
  (sa) sa_dest= 20.1.1.2, sa_prot= 50,
    sa_spi= 0x1D25013E(488964414),
    sa_trans= esp-des esp-sha-hmac , sa_conn_id= 2000
*Dec 28 21:18:14.767: IPSEC(create_sa): sa created,
  (sa) sa_dest= 20.1.1.1, sa_prot= 50,
    sa_spi= 0x92F52EF2(2465541874),
    sa_trans= esp-des esp-sha-hmac , sa_conn_id= 2001

RIP による GRE トンネルでのルータ間 IPSec（RSA キー）の設定例

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前提条件

要件

使用するコンポーネント

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設定

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設定

確認

Router 101 のコマンド出力

Router 102 のコマンド出力

トラブルシュート

トラブルシューティングの手順

トラブルシューティングのためのコマンド

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RIP による GRE トンネルでのルータ間 IPSec（RSA キー）の設定例

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偏向のない言語

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内容

更新履歴

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