拨号和接入 : 异步连接

路由器到路由器异步多链路 PPP

2015 年 8 月 28 日 - 机器翻译
其他版本: PDFpdf | 英语 (2015 年 4 月 22 日) | 反馈


目录


简介

本配置描述的是带内置8端口模拟调制解调器卡(NM-8AM)的远端Cisco 3640拨入带主速率接口(PRI)的Cisco AS5300。该配置描述了由远程站点两条模拟电话线路组成的多链路连接。如果有更多的电话线路,则可为该MP配置更多电话线路。

先决条件

要求

本文档没有任何特定的前提条件。

使用的组件

本文档中的信息基于以下软件和硬件版本。

  • 运行Cisco IOS软件版本12.1(3)的Cisco 3640

  • 运行Cisco IOS软件版本12.07(T)的Cisco AS5300

注意: MP 最初是在 Cisco IOS 软件版本 11.0(3) 中引入的。

本文档中的信息都是基于特定实验室环境中的设备创建的。本文档中使用的所有设备最初均采用原始(默认)配置。如果您是在真实网络上操作,请确保您在使用任何命令前已经了解其潜在影响。

规则

有关文档规则的详细信息,请参阅 Cisco 技术提示规则

背景理论

多链路PPP(MP)允许设备通过实施虚拟连接,从多个点到点的数据链路向同一目的地发送数据。MP连接所需最大带宽等于各链路成员的带宽总和。MP可以在多路复用链路(例如ISDN与帧中继)上配置,也可以在多个异步链路上配置。关于MP的更多信息leavingcisco.com 参考的RFC 1990

注意: RFC 1990是指多链路PPP作为MP。MP的其它已知名称包括MPPP、MLP以及多链路。

异步MP可用于连接远端客户端,其速率比经由单个模拟连接的最高速率要高很多。在异步MP中,远端客户机使用多个调制解调器(因此需要多条电话线)来拨入中央路由器,然后接入网络。因为多条电话线的费用通常比ISDN基本速率接口(BRI)服务费用低廉,异步MP能在控制成本的同时为远程用户提供增加连接速度的有效方式。对于无法得到ISDN服务的远程地区,异步MP也是一个获得更高接入速率的有效途径。

异步MP将数个单独的调制解调器连接捆绑到一个接入服务器。每个对端的PPP软件将数据包进行分段并通过多个模拟连接将分段的数据包发送到另一侧。接收端从各个独立的连接集中这些分段的数据包,并根据它们所嵌入的MP信息重新组合为具有有效数据包,以此来提供一个高带宽的端到端虚拟链路。异步MP可以在两台路由器之间进行配置,也可以在路由器和客户端PC之间进行配置。

配置

本部分提供有关如何配置本文档所述功能的信息。

注意: 要寻找关于用于本文的指令的其他信息,请使用命令查找工具

网络图

本文档使用下图所示的网络设置。

/image/gif/paws/9585/router2router.gif

配置

本文档使用如下所示的配置。

Cisco 3640
clearlake-lan-01#show runnning-config
Building configuration...

Current configuration:
!
version 12.1
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
!
hostname clearlake-lan-01
!
aaa new-model
aaa authentication login default local
aaa authentication ppp default if-needed local
!
username bobslake-nas-01 password <deleted>

!--- Remote router and password for CHAP authentication.
!--- Dialer interface must also be configured to use 
!--- this username and password.

username admin privilege 15 password <deleted>
!         
no ip domain-lookup
!
chat-script async-mppp ABORT ERROR ABORT BUSY 
"" "ATZ" OK "ATDT \T" TIMEOUT 30 CONNECT \c

!--- Chat script used for dialing out.

!
interface Loopback0
 ip address 172.21.126.254 255.255.255.0
!
interface Ethernet0/0
 ip address 172.21.125.1 255.255.255.0
!
interface Group-Async1

!--- Interface to configure modems used for dialout.

 no ip address
 encapsulation ppp

!--- Use PPP encapsulation for members of this 
!--- group-async interface.

 dialer in-band

!--- Permit DDR on this interface.

 dialer pool-member 10

!--- All members of this group-async interface belong 
!--- to dialer pool 10.

 ppp multilink

!--- Enable PPP multilink on physical interface.

 group-range 33 34

!--- Assign async 33 and 34 to this group-async interface.
!--- This can be adjusted depending on the number of POTS lines available.

! 
 interface Dialer1

!--- Dialer interface to dialout to bobslake-nas-01.

 ip address negotiated

!--- Obtain an IP address from central site.

 encapsulation ppp
 dialer remote-name bobslake-nas-01

!--- Identify central site router for CHAP authentication.
!--- Shared secret password is defined above.

 dialer pool 10

!--- Defines the pool of physical resources that the Dialer 
!--- interface may use.

 dialer idle-timeout 600

!--- Specifies number of seconds without interesting traffic that 
!--- the connection is kept up.

 dialer string 5551212

!--- Number to be dialed; this number belongs to the PRI 
!--- of the central router.

 dialer load-threshold 15 either

!--- Load level for either inbound or outbound traffic 
!--- at which additional lines will be added to the MP bundle.
!--- Load level values range from 1 (unloaded) to 255 (fully loaded).

 dialer-group 8

!--- Uses dialer-list 8 to determine interesting traffic.

 ppp authentication chap callin

!--- Use CHAP authentication for incoming calls only
!--- This router will not challenge remote routers for outgoing calls.

 ppp multilink

!--- Activates the interface for MP operation.

 ppp timeout multilink link remove 300

!--- Keeps the multilink connections up for 300 seconds 
!--- after the load drops below the threshold.
!--- This command should be used to control flapping.

!
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1

!--- Use Interface Dialer1 for all networks.

no ip http server
!
access-list 188 remark define interesting traffic
access-list 188 deny   udp any any eq ntp
access-list 188 permit ip any any
dialer-list 8 protocol ip list 188

!--- Assign access-list 188 to dialer-list 8.  

!
line con 0
 transport input none
line 33 34

!--- Async lines to be used for dialout. 
!--- This number should match the group-range in the 
!--- Group-Async interface.

 script dialer async-mppp

!--- Use chat script called async-mppp for dialout.

 modem InOut
 modem autoconfigure discovery
 transport preferred none
 transport input all
line 35 40
 transport preferred none
 transport input all
line aux 0
line vty 0 4
!
ntp clock-period 17179871
ntp server 172.22.255.1 prefer
end

Cisco AS5300
bobslake-nas-01#show running-config 

Building configuration...

Current configuration:
  
version 12.0
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
service tcp-small-servers
!
hostname bobslake-nas-01
!
logging buffered 10000 debugging
aaa new-model
aaa authentication login default local
aaa authentication ppp default if-needed local

!--- Authenticate for PPP if not authenticated during login.
!--- Allows users with Terminal Window after Dial to initiate PPP.

!
username clearlake-lan-01 password <deleted>

!--- Remote router and password for Challenge Handshake 
!--- Authentication Protocol (CHAP) authentication.
!--- The password must be identical on both sides.

spe 1/0 1/7
firmware location system:/ucode/mica_port_firmware
!
resource-pool disable
!
ip subnet-zero
!
multilink virtual-template 1

!--- Use virtual-template 1 for multilink connections.

isdn switch-type primary-5ess
isdn voice-call-failure 0
!
controller T1 0
 framing esf
 clock source line primary
 linecode b8zs
 pri-group timeslots 1-24
!
 interface Loopback0
  ip address 172.21.10.10 255.255.255.255
  no ip directed-broadcast
!
interface Loopback1
 ip address 172.21.104.254 255.255.255.0

!--- Summarizes addresses in address pool. 
!--- Loopback 1 is in the same subnet as the address pool.

 no ip directed-broadcast
!
 interface Virtual-Template1
 description Template for Multilink Users
 ip unnumbered Loopback0 
 no ip directed-broadcast
 peer default ip address pool addr-pool

!--- Use IP pool called addr-pool for incoming calls.

 ppp authentication chap

!--- Authenticate using CHAP.

 ppp multilink

!--- Allow multilink sessions.

!

!--- Configure D channel on PRI.

interface Serial0:23
 description Headquarters 555-1212 active PRI line
 no ip address
 no ip directed-broadcast
 isdn switch-type primary-5ess
 isdn incoming-voice mode
 fair-queue 64 256 0
 no cdp enable
!
interface FastEthernet0
 ip address 172.21.101.23 255.255.255.0
 no ip directed-broadcast
 duplex auto
 speed auto
!
interface Group-Async1
 ip unnumbered Loopback0
 no ip directed-broadcast
 encapsulation ppp
 dialer in-band
 dialer idle-timeout 600 either

!--- Specifies number of seconds without interesting 
!--- traffic that the connection is kept up.
!--- Configure the same idle-timeout on both routers.

 dialer map ip 172.21.125.1 name clearlake-nas-01
 dialer-group 5

!--- Uses dialer-list 5 to determine interesting traffic.

 async mode interactive
 peer default ip address pool addr-pool

!--- Use IP pool called addr-pool for incoming calls.

 ppp authentication chap callin

!--- Issue CHAP challenges for dialin users only.  

ppp multilink
 group-range 1 48

!--- Assign modems 1-48 to the Group-Async 1 configuration template.

! 
 router eigrp 1
 passive-interface Group-Async1

!--- To prevent routing traffic on async lines. 

 network 172.21.0.0
!
ip local pool addr-pool 172.21.104.1 172.21.104.48

!--- Define IP address pool range for dialin clients.
 
ip classless
no ip http server
!
access-list 105 permit ip any any

!--- Define interesting traffic.

dialer-list 5 protocol ip list 105

!--- Assign access list 105 to dialer list 5.

!
line con 0
 transport input none
line 1 48
 autoselect during-login

!--- Permits user login prompts after dialin.

 autoselect ppp

!--- Automatically launches PPP on the line.

 modem InOut

!--- Modems can be used to dialin and dialout.

 transport preferred none
 transport output telnet
line aux 0
line vty 0 4
!
ntp clock-period 17180374
ntp update-calendar
ntp server 172.22.255.1 prefer
end

调整和可选命令

下面的命令可用于调节MP连接的行为。对此类参数的精细调节将能通过避免对数据链路进行不经济与不必要的使用,而有助于控制成本。

  • dialer load-threshold load[outbound|入站|二者之一]

    可以配置MP以使建立主要信道之后立即产生附加信道。要建立这种情况,请将拨号器load - threshold load命令中的负载阈值设定为1。此时产生附加信道,并保持状态(也就是说,它们不会摆动)。如果负载阈值设定为其它值,多信道可能会根据连接上的负载发生翻转。如果要根据需要添加附加通道,请根据具体流量,将负载阈值设置为 1 和 255 之间的适当值。例如,对于在 50% 处接通的附加通道,阈值应设置为 128 (0.50*255)。判断阈值时,必须对异步呼叫的建立时间进行考虑,因为过长的建立时间可能会使低限阈值成为可能。

    负载的计算可以根据接口的出口、入口流量进行,或者根据接口上入口与出口之中有较高业务量的情况进行。如果负载建立在入站或者两者之一之上,请确保中心站点已配置 passive-interface group-async1,这样核心的路由更新不会通过异步线路发送。通过阻止路由流量在链路上的传输,可以为链路上的其它数据提供更多带宽。

  • ppp timeout multilink link remove seconds

    本命令可以用于防止多链路连接在负载发生变化时产生倒换。例如,当负载阈值设定为15时(亦即15/255 = 6%),且流量超过阈值,将产生附加线路。当流量低于阈值时,附加线路取消。在数据速率变化剧烈的情况中,多信道停留一段特定的时间则比较有益,即使负载阈值低于指定值。指定多链路超时低于控制所有链路超时的拨号程序空闲超时。

  • ppp timeout multilink link add seconds

    直到高数据流按照指定的时间间隔接收,此命令均可用于防止多条链路添加到MP套件。这样可以防止突发 数据流引发额外的线路。

验证

本部分所提供的信息可用于确认您的配置是否正常工作。

输出解释器工具支持某些 show 命令(只限于注册用户),通过它可以查看 show 命令输出的分析。

  • show ppp multilink - 显示处于启用状态下的多链路捆绑的信息。应使用本命令来检查多链路连接。

  • show caller - 显示NAS上的个人用户以及所消耗的资源的信息。本命令显示大量连接池中的的Active的呼叫统计信息,并显示各用户的绝对时间以及空闲时间。如果您的Cisco IOS版本软件不支持此指令,请使用show users命令。

  • show caller user - 显示特定用户(例如使用TTY线路的用户)的参数、异步接口(机架/插槽/端口)、DS0信道编号、调制解调器编号、所分配的IP地址、PPP与PPP捆绑参数等等。如果您的Cisco IOS版本软件不支持此指令,请使用show users命令。

show 输出示例

以下show命令的输出结果选自拨入AS5300的Cisco 3640。该结果显示多链路连接已建立。

clearlake-lan-01#show ppp multilink
Virtual-Access1, bundle name is bobslake-nas-01

!--- Virtualized MP bundle. Bundle name is derived from the 
!--- username used during authentication.

  Dialer interface is Dialer1

!--- This Virtual Access Interface used Interface Dialer1.

  0 lost fragments, 0 reordered, 0 unassigned
  0 discarded, 0 lost received, 1/255 load
  0x4 received sequence, 0x0 sent sequence
  Member links: 2 (max not set, min not set)
    Async34
    Async33

!--- Members of the MP bundle.


clearlake-lan-01#show dialer


As33 - dialer type = IN-BAND ASYNC NO-PARITY
Dialer pool 10, priority 0

!--- Member of dialer pool 10.

Idle timer (120 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is multilink member
Dial reason: Multilink bundle overloaded

!--- Interface was not the first link in the MP bundle. 

Interface bound to profile Di1
Current call connected 00:00:54

!--- Current call duration

Connected to <deleted>5551212 (bobslake-nas-01) 

!--- Phone number that was dialed.


As34 - dialer type = IN-BAND ASYNC NO-PARITY
Dialer pool 10, priority 0

!--- Member of dialer pool 10.

Idle timer (600 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is multilink member
Dial reason: ip (s=172.21.125.1, d=172.21.104.254)

!--- Interface was the first link in the bundle, triggered by 
!--- interesting traffic.

Interface bound to profile Di1
Current call connected 00:00:54

!--- Current Call duration.

Connected to 5551212 <deleted> (bobslake-nas-01)

!--- Phone number that was dialed.


Gr1 - dialer type = IN-BAND ASYNC NO-PARITY
Idle timer (120 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is idle


Dial String      Successes   Failures    Last DNIS   Last status

Di1 - dialer type = DIALER PROFILE
Load threshold for dialing additional calls is 15

!--- Load threshold.

Idle timer (600 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is data link layer up
Number of active calls = 2

Dial String      Successes   Failures    Last DNIS   Last status
            15          0    00:00:56       successful   Default
clearlake-lan-01#show caller
                                                Active    Idle
  Line         User               Service       Time      Time
  con 0        tarpon             TTY           00:09:11  00:00:00  
  tty 33       -                  Async         -         00:00:01  
  TTY 34       -                  Async         -         00:00:06  
  As33         bobslake-nas-01    PPP           00:00:24  00:00:00  

!--- Second connection.

  As34         bobslake-nas-01    PPP           00:01:05  00:00:00  

!--- First connection. 

  Vi1          bobslake-nas-01    PPP   Bundle  00:01:05  00:01:04  

!--- MP bundle
!--- bobslake-nas-01 has two async lines, two TTY, and one virtual 
!--- interface bundle.


clearlake-lan-01#show caller user bobslake-nas-01

  User: bobslake-nas-01, line As33, service PPP

!--- PPP setting for bobslake-nas-01.

        Active time 00:00:34, Idle time 00:00:00
  Timeouts:            Absolute  Idle
      Limits:          -         -         
      Disconnect in:   -         -         
  PPP: LCP Open, multilink Open, CHAP (-> AAA)

!--- Multilink is up.

  Dialer: Connected 00:01:09 to <deleted>, outbound

!--- Dialer interface was used to dialout.

          Type is IN-BAND ASYNC, group Dialer1
          Cause: Multilink bundle overloaded

!--- This interface was not the first member of the MP bundle.

  IP: Local 172.21.104.48/32
  Bundle: Member of bobslake-nas-01, last input 00:00:00
  Counts: 59 packets input, 3529 bytes, 0 no buffer
          0 input errors, 22 CRC, 0 frame, 0 overrun
          31 packets output, 1515 bytes, 0 underruns
          0 output errors, 0 collisions, 4 interface resets

!--- Packets are passing through the connection.


  User: bobslake-nas-01, line As34, service PPP

!--- PPP setting for user bobslake-nas-01.

        Active time 00:01:15, Idle time 00:00:00
  Timeouts:            Absolute  Idle
      Limits:          -         -         
      Disconnect in:   -         -         
  PPP: LCP Open, multilink Open, CHAP (-> AAA)

!--- MP state is open.

  Dialer: Connected 00:01:10 to <deleted>, outbound
          Type is IN-BAND ASYNC, group Dialer1
          Cause: ip (s=172.21.125.1, d=172.21.104.254)

!--- Dialing cause was interesting traffic; this was the 
!--- first link in the bundle.

  IP: Local 172.21.104.48/32
  Bundle: Member of bobslake-nas-01, last input 00:00:00
  Counts: 172 packets input, 20699 bytes, 0 no buffer
          0 input errors, 81 CRC, 0 frame, 0 overrun
          80 packets output, 14347 bytes, 0 underruns
          0 output errors, 0 collisions, 6 interface resets

!--- Packets are passing through the connection.


  User: bobslake-nas-01, line Vi1, service PPP Bundle

!--- Bundle information for user bobslake-nas-01.

        Active time 00:01:16, Idle time 00:01:15
  Timeouts:            Absolute  Idle
      Limits:          -         00:10:00  
      Disconnect in:   -         00:08:44  

!--- Idle-timeout is 600 seconds(10 minutes).

  PPP: LCP Open, multilink Open, IPCP
  Dialer: Connected 00:01:10 to <deleted>, outbound
          Idle timer 600 secs, idle 75 secs
          Type is IN-BAND SYNC, group Dialer1
  IP: Local 172.21.104.48/32, remote 172.21.104.254

!--- IP address assigned to the bundle and loopback address 
!--- of the remote router.

  Bundle: First link of bobslake-nas-01, 2 links, last input 00:01:16
  Counts: 23 packets input, 4758 bytes, 0 no buffer
          0 input errors, 0 CRC, 0 frame, 0 overrun
          7 packets output, 3734 bytes, 0 underruns
          0 output errors, 0 collisions, 0 interface resets

AS5300的一些show命令输出结果如下显示。有关更多的输出结果情况,请参阅文档 在Microsoft Windows客户机中进行异步多链路PPP拨号 。AS5300(中心站点)的show与debug输出结果和PC-Router Async MP以及Router-Router Async MP类似。

bobslake-nas-01#show ppp multilink

Virtual-Access1, bundle name is clearlake-lan-01
  0 lost fragments, 0 reordered, 0 unassigned, sequence 0x1/0x10 rcvd/sent
  0 discarded, 0 lost received, 1/255 load
  Member links: 2 (max not set, min not set)
    Async47
    Async45

bobslake-nas-01#show caller
                                                Active    Idle
  Line         User               Service       Time      Time
  TTY 45       clearlake-lan-01   Async         00:01:12  00:01:03  
  TTY 47       clearlake-lan-01   Async         00:01:51  00:00:06  
  vty 0        admin              VTY           00:11:02  00:00:00  
  As45         clearlake-lan-01   PPP           00:01:02  00:00:00  
  As47         clearlake-lan-01   PPP           00:01:49  00:00:00  
  Vi1          clearlake-lan-01   PPP   Bundle  00:01:43  00:01:10  

故障排除

本部分提供的信息可用于对配置进行故障排除。

故障排除步骤

当对MP连接进行故障检修时,请按呼叫处理的相同方式进行处理:

下文提供debug输出示例,对于要寻找的内容标有说明。

当测试您的MP配置时,请确保您在链接中生成了足够的业务量以触发负载阈值。您可以在测试期间根据需要来调节负载阈值。

  1. 请使用debug dialer以及debug chat命令来检验拨号器是否正确拨号。

  2. 请检验PPP协商与认证是否成功。请注意LCP协商情况,它协调了MP参数线路最大接收重建单元(MRRU)和端点鉴别器(EndpointDisc)。

  3. 请检验链接的虚拟化是否正确进行。将由Cisco IOS软件创建一虚拟访问接口来表现MP束。

  4. 请检验互联网协议控制协议(IPCP)是否成功。请注意是否分配了正确的IP地址,以及是否安装了正确的路由。

故障排除命令

输出解释器工具支持某些 show 命令(只限于注册用户),通过它可以查看 show 命令输出的分析。

注意: 在发出 debug 命令之前,请参阅有关 Debug 命令的重要信息

  • debug vtemplate - 虚拟访问接口从虚拟模板进行克隆开始,到该接口被关闭为止,将显示该接口的克隆信息。

  • debug ppp multilink events - 显示影响多链路捆绑的事件信息。

  • debug ppp negotiation - 在协商链路控制协议(LCP)、认证以及网络控制协议(NCP)时,显示关于PPP流量与交换的信息。成功的PPP协商将首先开放LCP状态,然后进行验证,最后进行NCP协商。在 LCP 协商期间建立多链路参数,如最大接收重建单元 (MRRU)。

  • debug ppp authentication - 显示PPP验证协议消息,其中包括质询 握手 验证 协议(CHAP)信息包交换以及密码 验证 协议(PAP)交换。

  • debug ppp error - 显示和PPP连接协商与操作相关的协议错误以及统计错误。

  • debug modem -显示在接入服务器的调制解调器线路活动。

调试输出示例

以下输出从Cisco 3640得到了。显示Cisco 3640拨号AS5300的PRI和建立MP连接的他们。有关AS5300的调试输出实例,请参阅文档 在Microsoft Windows客户机中进行异步多链路PPP拨号。

clearlake-lan-01#debug dialer
Dial on demand events debugging is on
clearlake-lan-01#debug ppp negotiation
PPP protocol negotiation debugging is on
clearlake-lan-01#debug ppp authentication 
PPP authentication debugging is on
clearlake-lan-01#debug vtemplate 
Virtual Template debugging is on
clearlake-lan-01#debug ppp multilink events
clearlake-lan-01#show debug
Dial on demand:
  Dial on demand events debugging is on
PPP:
  PPP authentication debugging is on
  PPP protocol negotiation debugging is on
  Multilink events debugging is on
VTEMPLATE:
  Virtual Template debugging is on
clearlake-lan-01#ping ip   
Target IP address: 172.21.104.254
Repeat count [5]: 20
Datagram size [100]: 1200
Timeout in seconds [2]: 
Extended commands [n]: 
Sweep range of sizes [n]: 
Type escape sequence to abort.
Sending 20, 1200-byte ICMP Echos to 172.21.104.254, timeout is 2 seconds:

Jul 25 13:20:29.047 UTC: As34 DDR: rotor dialout [priority]
Jul 25 13:20:29.047 UTC: As34 DDR: Dialing cause ip (s=172.21.125.1, 
d=172.21.104.254)

!--- Dialing Reason

Jul 25 13:20:29.047 UTC: As34 DDR: Attempting to dial <deleted>5551212

!--- Number being dialed

Jul 25 13:20:29.047 UTC: CHAT34: Attempting async line dialer script
Jul 25 13:20:29.047 UTC: CHAT34: Dialing using Modem script: 
async-mppp & System script: none

!--- Using chat script async-mppp for dialout

Jul 25 13:20:29.051 UTC: CHAT34: process started
Jul 25 13:20:29.051 UTC: CHAT34: Asserting DTR
Jul 25 13:20:29.051 UTC: CHAT34: Chat script async-mppp started

!--- Call is being established; 
!--- note the time elapsed for call setup

Jul 25 13:20:54.831 UTC: CHAT34: Chat script async-mppp finished, 
status = Success.
Jul 25 13:20:56.831 UTC: 
%LINK-3-UPDOWN: Interface Async34, changed state to up
Jul 25 13:20:56.831 UTC: 
Async34 DDR: Dialer statechange to up
Jul 25 13:20:56.831 UTC: 
%DIALER-6-BIND: Interface As34 bound to profile Di1
Jul 25 13:20:56.831 UTC: 
Async34 DDR: Dialer call has been placed

!--- PPP negotiation begins

Jul 25 13:20:56.831 UTC: As34 PPP: Treating connection as a callout
Jul 25 13:20:56.831 UTC: As34 PPP: Phase is ESTABLISHING, Active Open
Jul 25 13:20:56.831 UTC: As34 PPP: No remote authentication for call-out

!--- CHAP challenge is configured for callin only
!--- LCP negotiation begins; Multilink parameters are also negotiated

Jul 25 13:20:56.835 UTC: As34 LCP: O CONFREQ [Closed] id 43 len 43
Jul 25 13:20:56.835 UTC: As34 LCP:    ACCM 0x000A0000 (0x0206000A0000)
Jul 25 13:20:56.835 UTC: As34 LCP:    MagicNumber 0x4395638E (0x05064395638E)
Jul 25 13:20:56.835 UTC: As34 LCP:    PFC (0x0702)
Jul 25 13:20:56.835 UTC: As34 LCP:    ACFC (0x0802)
Jul 25 13:20:56.835 UTC: As34 LCP:    MRRU 1524 (0x110405F4)

!--- Negotiate Maximum Receive Reconstructed Unit (MRRU)
!--- MRRU is the maximum packet size this end will reconstruct

Jul 25 13:20:56.835 UTC: As34 LCP:    EndpointDisc 1 Local
Jul 25 13:20:56.835 UTC: As34 LCP:     (0x131301636C6561726C616B652D6C616E)
Jul 25 13:20:56.835 UTC: As34 LCP:     (0x2D3031).
Jul 25 13:20:58.831 UTC: As34 LCP: TIMEout: State REQsent
Jul 25 13:20:58.831 UTC: As34 LCP: O CONFREQ [REQsent] id 44 Len 43
Jul 25 13:20:58.831 UTC: As34 LCP:    ACCM 0x000A0000 (0x0206000A0000)
Jul 25 13:20:58.831 UTC: As34 LCP:    MagicNumber 0x4395638E (0x05064395638E)
Jul 25 13:20:58.831 UTC: As34 LCP:    PFC (0x0702)
Jul 25 13:20:58.831 UTC: As34 LCP:    ACFC (0x0802)
Jul 25 13:20:58.831 UTC: As34 LCP:    MRRU 1524 (0x110405F4)
Jul 25 13:20:58.831 UTC: As34 LCP:    EndpointDisc 1 Local
Jul 25 13:20:58.831 UTC: As34 LCP:     (0x131301636C6561726C616B652D6C616E)
Jul 25 13:20:58.831 UTC: As34 LCP:     (0x2D3031).
Jul 25 13:21:00.831 UTC: As34 LCP: TIMEout: State REQsent
Jul 25 13:21:00.831 UTC: As34 LCP: O CONFREQ [REQsent] id 45 Len 43
Jul 25 13:21:00.831 UTC: As34 LCP:    ACCM 0x000A0000 (0x0206000A0000)
Jul 25 13:21:00.831 UTC: As34 LCP:    MagicNumber 0x4395638E (0x05064395638E)
Jul 25 13:21:00.831 UTC: As34 LCP:    PFC (0x0702)
Jul 25 13:21:00.831 UTC: As34 LCP:    ACFC (0x0802)
Jul 25 13:21:00.831 UTC: As34 LCP:    MRRU 1524 (0x110405F4)
Jul 25 13:21:00.831 UTC: As34 LCP:    EndpointDisc 1 Local
Jul 25 13:21:00.831 UTC: As34 LCP:     (0x131301636C6561726C616B652D6C616E)
Jul 25 13:21:00.831 UTC: As34 LCP:     (0x2D3031)
Jul 25 13:21:01.135 UTC: As34 LCP: I CONFACK [REQsent] id 45 Len 43
Jul 25 13:21:01.135 UTC: As34 LCP:    ACCM 0x000A0000 (0x0206000A0000)
Jul 25 13:21:01.135 UTC: As34 LCP:    MagicNumber 0x4395638E (0x05064395638E)
Jul 25 13:21:01.135 UTC: As34 LCP:    PFC (0x0702)
Jul 25 13:21:01.135 UTC: As34 LCP:    ACFC (0x0802)
Jul 25 13:21:01.135 UTC: As34 LCP:    MRRU 1524 (0x110405F4)
Jul 25 13:21:01.135 UTC: As34 LCP:    EndpointDisc 1 Local
Jul 25 13:21:01.135 UTC: As34 LCP:     (0x131301636C6561726C616B652D6C616E)
Jul 25 13:21:01.135 UTC: As34 LCP:     (0x2D3031)
Jul 25 13:21:01.139 UTC: As34 LCP: I CONFREQ [ACKrcvd] id 6 Len 47
Jul 25 13:21:01.139 UTC: As34 LCP:    ACCM 0x000A0000 (0x0206000A0000)
Jul 25 13:21:01.143 UTC: As34 LCP:    AuthProto CHAP (0x0305C22305)
Jul 25 13:21:01.143 UTC: As34 LCP:    MagicNumber 0xE16DFC8D (0x0506E16DFC8D)
Jul 25 13:21:01.143 UTC: As34 LCP:    PFC (0x0702)
Jul 25 13:21:01.143 UTC: As34 LCP:    ACFC (0x0802)
Jul 25 13:21:01.143 UTC: As34 LCP:    MRRU 1524 (0x110405F4)
Jul 25 13:21:01.143 UTC: As34 LCP:    EndpointDisc 1 Local
Jul 25 13:21:01.143 UTC: As34 LCP:     (0x131201626F62736C616B652D6E61732D)
Jul 25 13:21:01.143 UTC: As34 LCP:     (0x3031)
Jul 25 13:21:01.143 UTC: As34 LCP: O CONFACK [ACKrcvd] id 6 Len 47
Jul 25 13:21:01.143 UTC: As34 LCP:    ACCM 0x000A0000 (0x0206000A0000)
Jul 25 13:21:01.143 UTC: As34 LCP:    AuthProto CHAP (0x0305C22305)
Jul 25 13:21:01.143 UTC: As34 LCP:    MagicNumber 0xE16DFC8D (0x0506E16DFC8D)
Jul 25 13:21:01.143 UTC: As34 LCP:    PFC (0x0702)
Jul 25 13:21:01.143 UTC: As34 LCP:    ACFC (0x0802)
Jul 25 13:21:01.143 UTC: As34 LCP:    MRRU 1524 (0x110405F4)
Jul 25 13:21:01.143 UTC: As34 LCP:    EndpointDisc 1 Local
Jul 25 13:21:01.143 UTC: As34 LCP:     (0x131201626F62736C616B652D6E61732D)
Jul 25 13:21:01.143 UTC: As34 LCP:     (0x3031)

!--- Both sides have CONFACKed the parameters 
!--- MRRU of 1524 bytes and the Endpoint Discriminator have been negotiated

Jul 25 13:21:01.143 UTC: As34 LCP: State is Open

!--- LCP negotiation complete

Jul 25 13:21:01.147 UTC: As34 PPP: Phase is AUTHENTICATING, by the peer

!--- Received a challenge from the remote router

Jul 25 13:21:01.351 UTC: As34 CHAP: I CHALLENGE id 3 Len 36 
from "bobslake-nas-01"
Jul 25 13:21:01.351 UTC: As34 CHAP: O RESPONSE id 3 Len 
Jul 25 13:21:01.539 UTC: As34 CHAP: I SUCCESS id 3 Len 4

!--- CHAP authentication successful

Jul 25 13:21:01.539 UTC: As34 PPP: Phase is VIRTUALIZED

!--- Virtualize Async 34 
!--- Virtual Access interface will represent the MP bundle

Jul 25 13:21:01.543 UTC: Vi1 VTEMPLATE: Reuse Vi1, recycle queue size 0
Jul 25 13:21:01.543 UTC: Vi1 VTEMPLATE: Hardware address 0030.9401.f101
Jul 25 13:21:01.543 UTC: Vi1 PPP: Phase is DOWN, Setup
Jul 25 13:21:01.543 UTC: %DIALER-6-BIND: Interface Vi1 bound to profile Di1
Jul 25 13:21:01.543 UTC: Vi1 VTEMPLATE: Has a new cloneblk dialer, 
now it has dialer
Jul 25 13:21:01.547 UTC: %LINK-3-UPDOWN: Interface Virtual-Access1, 
changed state to up
Jul 25 13:21:01.547 UTC: Virtual-Access1 DDR: Dialer statechange to up

!--- Virtual Access Interface is up
!--- Negotiate LCP and PPP parameters for Virtual-Access Interface

Jul 25 13:21:01.547 UTC: Virtual-Access1 DDR: Dialer call has been placed
Jul 25 13:21:01.547 UTC: Vi1 PPP: Treating connection as a callout
Jul 25 13:21:01.547 UTC: Vi1 PPP: Phase is ESTABLISHING, Active Open
Jul 25 13:21:01.547 UTC: Vi1 PPP: No remote authentication for call-out
Jul 25 13:21:01.547 UTC: Vi1 LCP: O CONFREQ [Closed] id 1 Len 33
Jul 25 13:21:01.547 UTC: Vi1 LCP:    MagicNumber 0x439575FC (0x0506439575FC)
Jul 25 13:21:01.547 UTC: Vi1 LCP:    MRRU 1524 (0x110405F4)
Jul 25 13:21:01.551 UTC: Vi1 LCP:    EndpointDisc 1 Local
Jul 25 13:21:01.551 UTC: Vi1 LCP:     (0x131301636C6561726C616B652D6C616E)
Jul 25 13:21:01.551 UTC: Vi1 LCP:     (0x2D3031)
Jul 25 13:21:01.551 UTC: Vi1 PPP: Phase is UP
Jul 25 13:21:01.551 UTC: Vi1 IPCP: O CONFREQ [Closed] id 1 Len 10
Jul 25 13:21:01.551 UTC: Vi1 IPCP:    Address 0.0.0.0 (0x030600000000)
Jul 25 13:21:01.551 UTC: 
As34 MLP: bobslake-nas-01, multilink up, first link

!--- First multilink connection is virtualized

Jul 25 13:21:01.651 UTC: Vi1 IPCP: I CONFREQ [REQsent] id 1 Len 10
Jul 25 13:21:01.651 UTC: Vi1 IPCP:    Address 172.21.104.254 (0x0306AC1568FE)
Jul 25 13:21:01.651 UTC: Vi1 IPCP: O CONFACK [REQsent] id 1 Len 10
Jul 25 13:21:01.651 UTC: Vi1 IPCP:    Address 172.21.104.254 (0x0306AC1568FE)
Jul 25 13:21:01.731 UTC: Vi1 IPCP: I CONFNAK [ACKsent] id 1 Len 10
Jul 25 13:21:01.731 UTC: Vi1 IPCP:    Address 172.21.104.48 (0x0306AC156830)
Jul 25 13:21:01.731 UTC: Vi1 IPCP: O CONFREQ [ACKsent] id 2 Len 10
Jul 25 13:21:01.731 UTC: Vi1 IPCP:    Address 172.21.104.48 (0x0306AC156830)
Jul 25 13:21:01.915 UTC: Vi1 IPCP: I CONFACK [ACKsent] id 2 Len 10
Jul 25 13:21:01.915 UTC: Vi1 IPCP:    Address 172.21.104.48 (0x0306AC156830)
Jul 25 13:21:01.915 UTC: Vi1 IPCP: State is Open
Jul 25 13:21:01.915 UTC: Di1 IPCP: Install negotiated IP interface 
address 172.21.104.48

!--- IP address is assigned to virtual-access interface

Jul 25 13:21:01.919 UTC: Vi1 DDR: dialer protocol up
Jul 25 13:21:01.919 UTC: Di1 IPCP: Install route to 172.21.104.254

!--- Route to loopback address of remote router

Jul 25 13:21:02.539 UTC: 
%LINEPROTO-5-UPDOWN: Line protocol on Interface Async34, 
changed state to up
Jul 25 13:21:02.551 UTC: 
%LINEPROTO-5-UPDOWN: Line protocol on Interface 
Virtual-Access1, changed state to up

!--- Full connectivity with first async connection
!--- Begin dialout using second async interface

Jul 25 13:21:08.191 UTC: As33 DDR: rotor dialout [priority]
Jul 25 13:21:08.191 UTC: 
As33 DDR: Attempting to dial <deleted>5551212

!--- Number to be dialed; this number is the PRI on the remote router

Jul 25 13:21:08.191 UTC: CHAT33: Attempting async line dialer script
Jul 25 13:21:08.191 UTC: CHAT33: Dialing using Modem script: 
async-mppp & System script: none

!--- Use chat script async-mppp for dialout

Jul 25 13:21:08.191 UTC: CHAT33: process started
Jul 25 13:21:08.191 UTC: CHAT33: Asserting DTR
Jul 25 13:21:08.191 UTC: CHAT33: Chat script async-mppp started
Jul 25 13:21:33.859 UTC: CHAT33: Chat script async-mppp finished, 
status = Success

!--- Chat script successful

Jul 25 13:21:35.859 UTC: %LINK-3-UPDOWN: Interface Async33, 
changed state to up
Jul 25 13:21:35.859 UTC: Async33 DDR: Dialer statechange to up
Jul 25 13:21:35.859 UTC: %DIALER-6-BIND: Interface As33 bound to 
profile Di1
Jul 25 13:21:35.859 UTC: Async33 DDR: Dialer call has been placed

!--- PPP negotiation begins

Jul 25 13:21:35.859 UTC: As33 PPP: Treating connection as a callout
Jul 25 13:21:35.859 UTC: As33 PPP: Phase is ESTABLISHING, Active Open
Jul 25 13:21:35.859 UTC: As33 PPP: No remote authentication for call-out

!--- CHAP challenge is configured for callin only
!--- LCP negotiation begins; Multilink parameters are also negotiated

Jul 25 13:21:35.863 UTC: As33 LCP: O CONFREQ [Closed] id 21 Len 43
Jul 25 13:21:35.863 UTC: As33 LCP:    ACCM 0x000A0000 (0x0206000A0000)
Jul 25 13:21:35.863 UTC: As33 LCP:    MagicNumber 0x4395FC05(0x05064395FC05)
Jul 25 13:21:35.863 UTC: As33 LCP:    PFC (0x0702)
Jul 25 13:21:35.863 UTC: As33 LCP:    ACFC (0x0802)
Jul 25 13:21:35.863 UTC: As33 LCP:    MRRU 1524 (0x110405F4)

!--- negotiate Maximum Receive Reconstructed Unit (MRRU)

Jul 25 13:21:35.863 UTC: As33 LCP:    EndpointDisc 1 Local
Jul 25 13:21:35.863 UTC: As33 LCP:     (0x131301636C6561726C616B652D6C616E)
Jul 25 13:21:35.863 UTC: As33 LCP:     (0x2D3031)
Jul 25 13:21:37.859 UTC: As33 LCP: TIMEout: State REQsent
Jul 25 13:21:37.859 UTC: As33 LCP: O CONFREQ [REQsent] id 22 Len 43
Jul 25 13:21:37.859 UTC: As33 LCP:    ACCM 0x000A0000 (0x0206000A0000)
Jul 25 13:21:37.859 UTC: As33 LCP:    MagicNumber 0x4395FC05 (0x05064395FC05)
Jul 25 13:21:37.859 UTC: As33 LCP:    PFC (0x0702)
Jul 25 13:21:37.859 UTC: As33 LCP:    ACFC (0x0802)
Jul 25 13:21:37.859 UTC: As33 LCP:    MRRU 1524 (0x110405F4)
Jul 25 13:21:37.859 UTC: As33 LCP:    EndpointDisc 1 Local
Jul 25 13:21:37.859 UTC: As33 LCP:     (0x131301636C6561726C616B652D6C616E)
Jul 25 13:21:37.859 UTC: As33 LCP:     (0x2D3031)
Jul 25 13:21:39.859 UTC: As33 LCP: TIMEout: State REQsent
Jul 25 13:21:39.859 UTC: As33 LCP: O CONFREQ [REQsent] id 23 Len 43
Jul 25 13:21:39.859 UTC: As33 LCP:    ACCM 0x000A0000 (0x0206000A0000)
Jul 25 13:21:39.859 UTC: As33 LCP:    MagicNumber 0x4395FC05 (0x05064395FC05)
Jul 25 13:21:39.859 UTC: As33 LCP:    PFC (0x0702)
Jul 25 13:21:39.859 UTC: As33 LCP:    ACFC (0x0802)
Jul 25 13:21:39.859 UTC: As33 LCP:    MRRU 1524 (0x110405F4)
Jul 25 13:21:39.859 UTC: As33 LCP:    EndpointDisc 1 Local
Jul 25 13:21:39.859 UTC: As33 LCP:     (0x131301636C6561726C616B652D6C616E)
Jul 25 13:21:39.859 UTC: As33 LCP:     (0x2D3031)
Jul 25 13:21:40.199 UTC: As33 LCP: I CONFREQ [REQsent] id 6 Len 47
Jul 25 13:21:40.199 UTC: As33 LCP:    ACCM 0x000A0000 (0x0206000A0000)
Jul 25 13:21:40.203 UTC: As33 LCP:    AuthProto CHAP (0x0305C22305)
Jul 25 13:21:40.203 UTC: As33 LCP:    MagicNumber 0xE16E950F (0x0506E16E950F)
Jul 25 13:21:40.203 UTC: As33 LCP:    PFC (0x0702)
Jul 25 13:21:40.203 UTC: As33 LCP:    ACFC (0x0802)
Jul 25 13:21:40.203 UTC: As33 LCP:    MRRU 1524 (0x110405F4)
Jul 25 13:21:40.203 UTC: As33 LCP:    EndpointDisc 1 Local
Jul 25 13:21:40.203 UTC: As33 LCP:     (0x131201626F62736C616B652D6E61732D)
Jul 25 13:21:40.203 UTC: As33 LCP:     (0x3031)
Jul 25 13:21:40.203 UTC: As33 LCP: O CONFACK [REQsent] id 6 Len 47

!--- PPP parameters are agreed on (CONFACKed) by both sides

Jul 25 13:21:40.203 UTC: As33 LCP:    ACCM 0x000A0000 (0x0206000A0000)
Jul 25 13:21:40.203 UTC: As33 LCP:    AuthProto CHAP (0x0305C22305)
Jul 25 13:21:40.203 UTC: As33 LCP:    MagicNumber 0xE16E950F (0x0506E16E950F)
Jul 25 13:21:40.203 UTC: As33 LCP:    PFC (0x0702)
Jul 25 13:21:40.203 UTC: As33 LCP:    ACFC (0x0802)
Jul 25 13:21:40.203 UTC: As33 LCP:    MRRU 1524 (0x110405F4)

!--- MRRU of 1524 bytes is accepted

Jul 25 13:21:40.203 UTC: As33 LCP:    EndpointDisc 1 Local
Jul 25 13:21:40.203 UTC: As33 LCP:     (0x131201626F62736C616B652D6E61732D)
Jul 25 13:21:40.203 UTC: As33 LCP:     (0x3031)
Jul 25 13:21:40.207 UTC: As33 LCP: I CONFACK [ACKsent] id 23 Len 43
!--- PPP parameters are agreed on (CONFACKed) by both sides
Jul 25 13:21:40.207 UTC: As33 LCP:    ACCM 0x000A0000 (0x0206000A0000)
Jul 25 13:21:40.207 UTC: As33 LCP:    MagicNumber 0x4395FC05 (0x05064395FC05)
Jul 25 13:21:40.207 UTC: As33 LCP:    PFC (0x0702)
Jul 25 13:21:40.207 UTC: As33 LCP:    ACFC (0x0802)
Jul 25 13:21:40.207 UTC: As33 LCP:    MRRU 1524 (0x110405F4)

!--- MRRU of 1524 bytes is accepted

Jul 25 13:21:40.207 UTC: As33 LCP:    EndpointDisc 1 Local
Jul 25 13:21:40.207 UTC: As33 LCP:     (0x131301636C6561726C616B652D6C616E)
Jul 25 13:21:40.207 UTC: As33 LCP:     (0x2D3031)

!--- LCP negotiation is complete

Jul 25 13:21:40.207 UTC: As33 LCP: State is Open
Jul 25 13:21:40.207 UTC: As33 PPP: Phase is AUTHENTICATING, by the peer

!--- CHAP authentication begins

Jul 25 13:21:40.419 UTC: As33 CHAP: I CHALLENGE id 3 Len 36 
from "bobslake-nas-01"

!--- Received challenge from bobslake-nas-01

Jul 25 13:21:40.423 UTC: As33 CHAP: O RESPONSE id 3 Len 37 
from "clearlake-lan-01"
Jul 25 13:21:42.528 UTC: As33 CHAP: I SUCCESS id 3 Len 4

!--- CHAP authentication is successful

Jul 25 13:21:42.528 UTC: As33 PPP: Phase is VIRTUALIZED

!--- Async 33 is added to Virtualized MP bundle

Jul 25 13:21:42.528 UTC: As33 MLP: bobslake-nas-01, multilink up

!--- Multilink connection is up

Jul 25 13:21:43.528 UTC: %LINEPROTO-5-UPDOWN: 
Line protocol on Interface Async33, 
changed state to up
clearlake-lan-01#
Jul 25 13:23:52.028 UTC: Vi1 MLP: Disabling particle-fastswitching 
in 'bobslake-nas-01'
Jul 25 13:23:52.028 UTC: Vi1 MLP: Enabling particle-fastswitching 
on 'bobslake-nas-01'

!--- Cisco IOS adjusting fast switching strategy to keep in step 
!--- with delivery of packet fragments

Jul 25 13:23:53.872 UTC: Vi1 MLP: Disabling particle-fastswitching 
in 'bobslake-nas-01'
Jul 25 13:23:53.884 UTC: Vi1 MLP: Enabling particle-fastswitching 
on 'bobslake-nas-01'

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Document ID: 9585