本檔案介紹變更安全防火牆威脅防禦(FTD)管理員存取資料介面的步驟。
本文中的資訊是根據特定實驗室環境內的裝置所建立。文中使用到的所有裝置皆從已清除(預設)的組態來啟動。如果您的網路運作中,請確保您瞭解任何指令可能造成的影響。
本文中的資訊係根據以下軟體和硬體版本:
1. FMC使用主用IP地址10.62.113.125和10.62.113.126分別透過名為nameif outside1的資料介面Ethernet1/1以高可用性(HA)方式管理FTD:

驗證FTD CLISH:
> show network management-data-interface
Physical Interface Name of the Interface
Ethernet1/1 outside1
> show network
===============[ System Information ]===============
Hostname : CSF4215-3
..
DNS from router : enabled
Management port : 8305
IPv4 Default route
Gateway : data-interfaces
…
======[ System Information - Data Interfaces ]======
DNS Servers : 192.0.2.100
Interfaces : Ethernet1/1
==================[ Ethernet1/1 ]===================
State : Enabled
Link : Up
Name : outside1
MTU : 1500
MAC Address : 40:F4:9F:3D:5A:0E
----------------------[ IPv4 ]----------------------
Configuration : Manual
Address : 10.62.113.125
Netmask : 255.255.255.0
Gateway : 10.62.113.1
…
2.在FTD HA裝置和FMC之間建立SFTUNNEL連線:
> sftunnel-status-brief
PEER:fmc.example.org
SFTunnel Status:-
Channel A: Connected
Channel B: Connected
Peer channel Channel-A is valid type (CONTROL), using 'tap_nlp', connected to '198.51.100.23' via '169.254.1.3'
Peer channel Channel-B is valid type (EVENT), using 'tap_nlp', connected to '198.51.100.23' via '169.254.1.3'
Registration: Completed.
IPv4 Connection to peer 'fmc.example.org' Start Time: Fri Jul 17 08:22:31 2026 UTC
Heartbeat Send Time: Fri Jul 17 08:52:42 2026 UTC
Heartbeat Received Time: Fri Jul 17 08:53:03 2026 UTC
Last disconnect time : Fri Jul 17 08:22:16 2026 UTC
Last disconnect reason : Process shutdown due to stop request from PM
3. FTD依賴DNS解析來連線到FMC。管理器基於完全限定的域名(FQDN)進行配置:
> show managers
Type : Manager
Host : fmc.example.org
Display name : fmc.example.org
Version : 10.0.1 (Build 1)
Identifier : 6d86efc4-c095-11f0-9244-48f1a7894b18
Registration : Completed
Management type : Configuration and analytics
> show network
===============[ System Information ]===============
Hostname : KSEC-FPR-4215-3
Domains : example.org
DNS Servers : 192.0.2.100
DNS from router : enabled
Management port : 8305
IPv4 Default route
Gateway : data-interfaces
…
DNS伺服器可通過outside1介面訪問。
4.sftunnel連線是透過Lina引擎建立的:
> show conn all port 8305
26 in use, 32 most used
Inspect Snort:
preserve-connection: 0 enabled, 0 in effect, 0 most enabled, 0 most in effect
TCP nlp_int_tap 10.62.113.125(169.254.1.3):8305 outside1 198.51.100.23:45647, idle 0:00:03, bytes 2129062, flags UIO
TCP nlp_int_tap 10.62.113.125(169.254.1.3):37141 outside1 198.51.100.23:8305, idle 0:00:04, bytes 148581, flags UxIO
目標是將管理器訪問從當前outside1移動到目標outside2介面。active和standby outside2 IP地址分別為10.62.114.51/24和10.62.114.52/24。
請注意,FTD版本7.7.0或更高版本支援冗餘管理器訪問資料介面,允許配置和部署超過1個管理器訪問介面。低於7.7.0的版本不支援此功能。
因此,將跳過特定步驟或包含不同的操作。

請注意,低於7.7.0的FTD版本不支援冗餘管理器訪問資料介面。嘗試配置第二個Manager訪問介面會導致出現以下錯誤消息:

對於7.7.0之前的FTD版本,請確保跳過步驟7和步驟8。
7.部署策略並驗證FTD CLISH上的設定。在本範例中,名稱為outside2的Ethernet1/2介面的IP位址分別為10.62.114.51和10.62.114.52:
> show ip
System IP Addresses:
Interface Name IP address Subnet mask Method
Ethernet1/1 outside1 10.62.113.125 255.255.255.0 manual <- source interface
Ethernet1/2 outside2 10.62.114.51 255.255.255.0 manual <- target interface
Ethernet1/4 fover 10.9.0.21 255.255.255.0 unset
outside2介面新增到sftunnel組態中:
> show running-config sftunnel
sftunnel interface outside2 <- target interface
sftunnel interface outside1 <- source interface
sftunnel port 8305
sftunnel route-map FMC_GEN_19283746_RBD_DUAL_WAN_RMAP_91827346
雖然在Network Address Translation(NAT)表中安裝了其他規則,但仍在使用outside1介面的規則:
> show nat detail
Manual NAT Policies Implicit (Section 0)
1 (nlp_int_tap) to (outside1) source static nlp_server__sftunnel_0.0.0.0_intf5 interface destination static 0_0.0.0.0_5 0_0.0.0.0_5 service tcp 8305 8305
translate_hits = 1448, untranslate_hits = 1448
Source - Origin: 169.254.1.3/32, Translated: 10.62.113.125/24
Destination - Origin: 0.0.0.0/0, Translated: 0.0.0.0/0
Service - Protocol: tcp Real: 8305 Mapped: 8305
2 (nlp_int_tap) to (outside2) source static nlp_server__sftunnel_0.0.0.0_intf6 interface destination static 0_0.0.0.0_9 0_0.0.0.0_9 service tcp 8305 8305
translate_hits = 0, untranslate_hits = 0
Source - Origin: 169.254.1.3/32, Translated: 10.62.114.51/24
Destination - Origin: 0.0.0.0/0, Translated: 0.0.0.0/0
Service - Protocol: tcp Real: 8305 Mapped: 8305
3 (nlp_int_tap) to (outside1) source static nlp_server__sftunnel_::_intf5 interface ipv6 destination static 0_::_6 0_::_6 service tcp 8305 8305
translate_hits = 0, untranslate_hits = 0
Source - Origin: fd00:0:0:1::3/128, Translated:
Destination - Origin: ::/0, Translated: ::/0
Service - Protocol: tcp Real: 8305 Mapped: 8305
4 (nlp_int_tap) to (outside2) source static nlp_server__sftunnel_::_intf6 interface ipv6 destination static 0_::_10 0_::_10 service tcp 8305 8305
translate_hits = 0, untranslate_hits = 0
Source - Origin: fd00:0:0:1::3/128, Translated:
Destination - Origin: ::/0, Translated: ::/0
Service - Protocol: tcp Real: 8305 Mapped: 8305
5 (nlp_int_tap) to (outside1) source dynamic nlp_client_0_intf5 interface
translate_hits = 653, untranslate_hits = 0
Source - Origin: 169.254.1.3/32, Translated: 10.62.113.125/24
6 (nlp_int_tap) to (outside2) source dynamic nlp_client_0_intf6 interface
translate_hits = 0, untranslate_hits = 0
Source - Origin: 169.254.1.3/32, Translated: 10.62.114.51/24
7 (nlp_int_tap) to (outside1) source dynamic nlp_client_0_ipv6_intf5 interface ipv6
translate_hits = 0, untranslate_hits = 0
Source - Origin: fd00:0:0:1::3/128, Translated:
8 (nlp_int_tap) to (outside2) source dynamic nlp_client_0_ipv6_intf6 interface ipv6
translate_hits = 0, untranslate_hits = 0
Source - Origin: fd00:0:0:1::3/128, Translated:
8.驗證高可用性狀態和介面監控:
> show monitor-interface
This host: Primary - Active
Interface management (203.0.113.130): Normal (Monitored)
Interface outside1 (10.62.113.125): Normal (Monitored)
Interface outside2 (10.62.114.51): Normal (Monitored)
Other host: Secondary - Standby Ready
Interface management (203.0.113.131): Normal (Monitored)
Interface outside1 (10.62.113.126): Normal (Monitored)
Interface outside2 (10.62.114.52): Normal (Monitored)
9.如果計畫通過outside2介面管理FTD,請確保允許通過平台設定的SSH Access部分進行訪問。
10.進行必要的更改,以允許通過目標介面連線到域名伺服器(DNS)和FMC:
在這種情況下,需要將IP 10.62.114.1用作目標介面的預設網關。使用網際網路控制訊息通訊協定(ICMP)可存取下一個躍點的IP位址:
> ping 10.62.114.1
Please use 'CTRL+C' to cancel/abort...
Sending 5, 100-byte ICMP Echos to 10.62.114.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/10 ms
如果在傳輸路徑或下一躍點上管理性封鎖ICMP,請確保下一個躍點的媒體存取控制(MAC)位址在show arp命令的輸出中可見且有效:
> show arp
fover 10.9.0.22 4c01.f7e9.e111 13275
outside1 10.62.113.1 c02c.1782.2cbf 1
outside1 10.62.113.126 4c01.f7e9.e10e 5453
outside2 10.62.114.1 c02c.1782.2cbf 0
outside2 10.62.114.52 4c01.f7e9.e10f 5453
11.根據FTD版本執行以下步驟:
12.部署策略。
13.驗證FTD CLISH:
> show route 0.0.0.0
Routing entry for 0.0.0.0 0.0.0.0, supernet
Known via "static", distance 1, metric 0, candidate default path
Routing Descriptor Blocks:
* 10.62.114.1, via outside2 <- default route over outside2
Route metric is 0, traffic share count is 1
> show running-config sftunnel
sftunnel interface outside2 <- sftunnel is enabled only over outside2
sftunnel port 8305
> show nat detail
Manual NAT Policies Implicit (Section 0)
1 (nlp_int_tap) to (outside2) source static nlp_server__sftunnel_0.0.0.0_intf6 interface destination static 0_0.0.0.0_9 0_0.0.0.0_9 service tcp 8305 8305
translate_hits = 3, untranslate_hits = 3
Source - Origin: 169.254.1.3/32, Translated: 10.62.114.51/24
Destination - Origin: 0.0.0.0/0, Translated: 0.0.0.0/0
Service - Protocol: tcp Real: 8305 Mapped: 8305
2 (nlp_int_tap) to (outside2) source static nlp_server__sftunnel_::_intf6 interface ipv6 destination static 0_::_10 0_::_10 service tcp 8305 8305
translate_hits = 0, untranslate_hits = 0
Source - Origin: fd00:0:0:1::3/128, Translated:
Destination - Origin: ::/0, Translated: ::/0
Service - Protocol: tcp Real: 8305 Mapped: 8305
3 (nlp_int_tap) to (outside2) source dynamic nlp_client_0_intf6 interface
translate_hits = 407, untranslate_hits = 0
Source - Origin: 169.254.1.3/32, Translated: 10.62.114.51/24
4 (nlp_int_tap) to (outside2) source dynamic nlp_client_0_ipv6_intf6 interface ipv6
translate_hits = 0, untranslate_hits = 0
Source - Origin: fd00:0:0:1::3/128, Translated:
> show conn all port 8305
31 in use, 42 most used
Inspect Snort:
preserve-connection: 0 enabled, 0 in effect, 0 most enabled, 0 most in effect
TCP nlp_int_tap 10.62.114.51(169.254.1.3):56853 outside2 198.51.100.23:8305, idle 0:00:06, bytes 33008, flags UxIO <- connectivity over outside2
TCP nlp_int_tap 10.62.114.51(169.254.1.3):32905 outside2 198.51.100.23:8305, idle 0:00:00, bytes 1595942, flags UxIO <- connectivity over outside2
14.如果需要更改「show network」CLISH命令輸出中的DNS伺服器,請配置新的DNS伺服器:
> configure network dns servers 192.0.2.184
15.在FMC上,將FTD管理IP地址更改為outside2 IP地址,然後使用滑塊禁用並重新啟用連線。對HA中的兩台裝置重複此步驟:

16.驗證所有FTD上的sftunnel連線:
> sftunnel-status-brief
PEER:198.51.100.23
SFTunnel Status:-
Channel A: Connected
Channel B: Connected
Peer channel Channel-A is valid type (CONTROL), using 'tap_nlp', connected to '198.51.100.23' via '169.254.1.3'
Peer channel Channel-B is valid type (EVENT), using 'tap_nlp', connected to '198.51.100.23' via '169.254.1.3'
Registration: Completed.
IPv4 Connection to peer '198.51.100.23' Start Time: Thu Jul 16 16:37:14 2026 UTC
Heartbeat Send Time: Thu Jul 16 16:38:13 2026 UTC
Heartbeat Received Time: Thu Jul 16 16:39:13 2026 UTC
Last disconnect time : Thu Jul 16 16:37:11 2026 UTC
Last disconnect reason : Both control and event channel connections with peer went down
> show conn all port 8305
32 in use, 42 most used
Inspect Snort:
preserve-connection: 0 enabled, 0 in effect, 0 most enabled, 0 most in effect
TCP nlp_int_tap 10.62.114.51(169.254.1.3):8305 outside2 198.51.100.23:36383, idle 0:00:00, bytes 235757, flags UIO <- new connection over different source port
TCP nlp_int_tap 10.62.114.51(169.254.1.3):8305 outside2 198.51.100.23:50963, idle 0:00:01, bytes 12319, flags UIO <- new connection over different source port
17.如果需要更改平台設定中的DNS伺服器,請進行相應的配置更改並部署策略。
使用以下命令進行驗證:
要排除管理連線故障,請參閱官方指南中的排除管理連線故障部分。
| 修訂 | 發佈日期 | 意見 |
|---|---|---|
1.0 |
07-Aug-2026
|
初始版本 |