February 6, 2012

EasyVPN IOS Error

I threw a quick blog up the other night when I was at my witts end.  Now today I’m trying to tackle it again.  Here is the detailed information.  Think you know whats wrong?

Topology:

This is the basic topology I’m working with.  There is a VPN 3000 acting as the EasyVPN server and a router (r3) acting as the EasyVPN remote.  The goal is the have r3 act as a VPN client, establishing a tunnel.  It should then get an IP address from an address pool configured on the concentrator.

The Concentrator Config:

First I made sure that the Public Interface had the Public Filter applied and it did…

The I made sure that the group EZVPN supported IPSec

There is an IPSec SA associated with the group.  No idea why the router wouldnt be able to do this…

Now here is the config on R3, the EasyVPN client:


r3#sh run
Building configuration...

Current configuration : 1215 bytes ! version 12.2 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname r3 ! logging queue-limit 100 ! ip subnet-zero ! ! ! ip audit notify log ip audit po max-events 100 ! ! ! ! ! ! ! crypto ipsec client ezvpn EZVPN connect manual group EZVPN key CISCO mode client peer 136.8.111.11 ! ! ! ! ! ! ! ! ! ! no voice hpi capture buffer no voice hpi capture destination ! ! mta receive maximum-recipients 0 ! ! ! ! interface Ethernet0/0 ip address 136.8.113.3 255.255.255.0 half-duplex crypto ipsec client ezvpn EZVPN ! interface Ethernet0/1 ip address 136.8.100.3 255.255.255.0 half-duplex crypto ipsec client ezvpn EZVPN inside ! interface Serial1/0 no ip address encapsulation frame-relay IETF shutdown frame-relay lmi-type cisco ! interface Serial1/1 no ip address shutdown ! interface Serial1/2 no ip address shutdown ! interface Serial1/3 ip address 136.8.23.3 255.255.255.0 clockrate 64000 ! router rip version 2 network 136.8.0.0 no auto-summary ! ip http server no ip http secure-server ip classless ! ! ! ! call rsvp-sync ! ! mgcp profile default ! dial-peer cor custom ! ! ! ! ! line con 0 line aux 0 line vty 0 4 ! ! end

And Finally the error:

You can find the video of the live event log here:  I cant get the video to embed.  I’m still a rookie.

So anyhow, after becoming really mad and figuring the concentrator wasn’t the problem I reloaded the router and rebuild the config.  Guess what?  It worked.  Here is the final commands, verification, and show run output.  I still dont see my error.

r3(config)#do sh ip int brie Interface IP-Address OK? Method Status Protocol Ethernet0/0 136.8.113.3 YES NVRAM up up Ethernet0/1 136.8.100.3 YES NVRAM up up Serial1/0 unassigned YES NVRAM administratively down down Serial1/1 unassigned YES NVRAM administratively down down Serial1/2 unassigned YES NVRAM administratively down down Serial1/3 136.8.23.3 YES NVRAM up up Virtual-Access1 unassigned YES unset up up r3(config)#cry ipsec r3(config)#cry ipsec c r3(config)#cry ipsec client e r3(config)#cry ipsec client ezvpn EZVPN r3(config-crypto-ezvpn)#connect ma r3(config-crypto-ezvpn)#connect manual r3(config-crypto-ezvpn)#gr r3(config-crypto-ezvpn)#group EZVPN key CISCO r3(config-crypto-ezvpn)#mode c r3(config-crypto-ezvpn)#mode client r3(config-crypto-ezvpn)#peer 136.8.113.11 r3(config-crypto-ezvpn)#int e0/0 r3(config-if)#cry ip r3(config-if)#cry ipsec e r3(config-if)#cry ipsec c r3(config-if)#cry ipsec client e r3(config-if)#cry ipsec client ezvpn EZVPN ou r3(config-if)#cry ipsec client ezvpn EZVPN outside r3(config-if)#int e0/1 r3(config-if)#cry ipsec client ezvpn EZVPN inside r3(config-if)#end r3#cry *Mar 1 00:36:27.893: %SYS-5-CONFIG_I: Configured from console by consolecl r3#cry ip r3#cry ipsec e r3#cry ipsec c r3#cry ipsec client e r3#cry ipsec client ezvpn ? connect Connect xauth Extended Authentication

r3#cry ipsec client ezvpn c r3#cry ipsec client ezvpn connect r3# *Mar 1 00:36:57.838: EZVPN(EZVPN): Pending XAuth Request, Please enter the following command: *Mar 1 00:36:57.838: EZVPN: crypto ipsec client ezvpn xauth conf t *Mar 1 00:37:07.839: EZVPN(EZVPN): Pending XAuth Request, Please enter the following command: *Mar 1 00:37:07.839: EZVPN: crypto ipsec client ezvpn xauth cry ipsec client ezvpn *Mar 1 00:37:17.839: EZVPN(EZVPN): Pending XAuth Request, Please enter the following command: *Mar 1 00:37:17.839: EZVPN: crypto ipsec client ezvpn xauth x r3#cry ipsec client ezvpn xauth Enter Username and Password.: CISCO Password: : CISCO1234 r3#show c r3#show cy r3#show cry r3#show crypto ip r3#show crypto ipsec e r3#show crypto ipsec c r3#show crypto ipsec client ? ezvpn Show EzVPN Status

r3#show crypto ipsec client e r3#show crypto ipsec client ezvpn ? | Output modifiers

r3#show crypto ipsec client ezvpn Easy VPN Remote Phase: 2

Tunnel name : EZVPN Inside interface list: Ethernet0/1, Outside interface: Ethernet0/0 Current State: IPSEC_ACTIVE Last Event: SOCKET_UP Address: 20.0.0.1 Mask: 255.255.255.255 Split Tunnel List: 1 Address : 136.8.111.0 Mask : 255.255.255.0 Protocol : 0x0 Source Port: 0 Dest Port : 0 r3#ping 136.8.111.1

Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 136.8.111.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/4 ms

And it worked! Here is the running configuration now on R3:

r3#sh run Building configuration...

Current configuration : 1224 bytes ! version 12.2 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname r3 ! logging queue-limit 100 ! ip subnet-zero ! ! ! ip audit notify log ip audit po max-events 100 ! ! ! ! ! ! ! crypto ipsec client ezvpn EZVPN connect manual group EZVPN key CISCO mode client peer 136.8.113.11 ! ! ! ! ! ! ! ! ! ! ! no voice hpi capture buffer no voice hpi capture destination ! ! mta receive maximum-recipients 0 ! ! ! ! interface Ethernet0/0 ip address 136.8.113.3 255.255.255.0 half-duplex crypto ipsec client ezvpn EZVPN ! interface Ethernet0/1 ip address 136.8.100.3 255.255.255.0 half-duplex crypto ipsec client ezvpn EZVPN inside ! interface Serial1/0 no ip address encapsulation frame-relay IETF shutdown frame-relay lmi-type cisco ! interface Serial1/1 no ip address shutdown ! interface Serial1/2 no ip address shutdown ! interface Serial1/3 ip address 136.8.23.3 255.255.255.0 clockrate 64000 ! router rip version 2 network 136.8.0.0 no auto-summary ! ip http server no ip http secure-server ip classless ! ! ! ! call rsvp-sync ! ! mgcp profile default ! dial-peer cor custom ! ! ! ! ! line con 0 line aux 0 line vty 0 4 login ! ! end

Hmm! Oh well, time to move on.

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