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837 RA IPSec VPN not forwarding traffic

bluesteel
Level 1
Level 1

Why is this 837 not forwarding VPN traffic?

 

1. The tunnel comes up
2. 837 can ping vpn-cli 192.168.3.x ip
3. vpn-cli can ping all 837 interfaces through tunnel
4. vpn-cli can not ping 192.168.100.254 on talktalk through tunnel
5. 837 can ping 192.168.100.254 on talktalk
6. vpn-cli 192.198.1.11 has to route to 10.10.10.10 to etablish the tunnel
7. all routing works when not connected to VPN
8. vpn-cli-ip persits in routing table of 837 after being disconnected only reload removes them
9. when 192.168.1.11 not connected to vpn, trace to vpn-cli-ip gets routed back to talktalk for some ips in 192.168.3.0/24 range and timeout, but not for some they timeout at 837

 

topology and config below

trace and 837 output attached 

 

topology
                                                                                                    837
                                                                                  Vpn-cli-pool_192.168.3.0/24
                                                                             loop0_10.10.10.10/32 (vpn-srv-tep)                                                                              talktalk
(vpn-cli-tep).11 ----192.168.100.0/24-----(eth0.2)Eth0-pri_192.168.2.253/32(eth0.1)-----192.168.2.0/24-----(LAn0.2)Lan0-pri_192.168.1.254/32(Lan0.1)
                                                                                 Eth0-sec_192.168.100.254/32                                                              Lan0-sec_192.168.2.254/32
                                                                                                                                                                                                        *****WLAN*****
                                                                                                                                                                                                        (vpn-cli-tep)2.11

 

config

ciscokid837#sh run
Building configuration...

Current configuration : 3871 bytes
!
! Last configuration change at 17:20:14 GMT Mon May 9 2022 by cisco
! NVRAM config last updated at 14:06:13 GMT Mon May 9 2022 by cisco
!
version 12.3
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname ciscokid837
!
boot-start-marker
boot-end-marker
!
memory-size iomem 5
enable secret 5 $1$gqsN$vkLjP4dwG2DJt2vgaINez0
enable password 7 02250D480809
!
username admin privilege 15 password 7 070C285F4D065929
username cisco password 7 030752180500
clock timezone GMT 1
aaa new-model
!
!
aaa authentication login abc1 local
aaa authorization network abc2 local
aaa session-id common
ip subnet-zero
ip tftp source-interface Ethernet0
ip domain name ciscokid.local
ip dhcp excluded-address 192.168.2.1 192.168.2.10
ip dhcp excluded-address 192.168.100.1 192.168.100.10
ip dhcp excluded-address 192.168.100.200 192.168.100.254
!
ip dhcp pool VPN-DMZ-2
network 192.168.100.0 255.255.255.0
default-router 192.168.100.254
dns-server 192.168.1.254
lease 3
!
!
ip cef
ip audit po max-events 100
ip ssh version 2
no ftp-server write-enable
!
!
!
!
!
crypto isakmp policy 10
encr 3des
hash md5
authentication pre-share
group 2
!
crypto isakmp policy 20
encr 3des
authentication pre-share
group 2
!
crypto isakmp client configuration group cisco
key cisco123
pool VPNPOOL
!
!
crypto ipsec transform-set set1 esp-3des esp-md5-hmac
!
crypto dynamic-map map1 10
set transform-set set1
reverse-route
!
!
crypto map map1 local-address Loopback0
crypto map map1 client authentication list abc1
crypto map map1 isakmp authorization list abc2
crypto map map1 client configuration address respond
crypto map map1 10 ipsec-isakmp dynamic map1
!
!
!
interface Loopback0
ip address 10.10.10.10 255.255.255.255
crypto map map1
!
interface Ethernet0
ip address 192.168.100.254 255.255.255.0 secondary
ip address 192.168.2.253 255.255.255.0
crypto map map1
hold-queue 100 out
!
interface Ethernet0.1
!
interface ATM0
no ip address
shutdown
no atm ilmi-keepalive
dsl operating-mode auto
!
ip local pool VPNPOOL 192.168.3.1 192.168.3.50
ip default-gateway 192.168.2.254
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.2.254
ip route 192.168.3.0 255.255.255.0 Ethernet0
ip http server
ip http secure-server
!
!
logging trap debugging
logging source-interface Ethernet0
logging 192.168.1.11
access-list 10 permit 192.168.1.11 log
access-list 10 permit 192.168.1.10 log
snmp-server community xxxxxxx RO
snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart
snmp-server enable traps tty
snmp-server enable traps flash insertion removal
snmp-server enable traps pppoe
snmp-server enable traps l2tun session
snmp-server enable traps rtr
snmp-server enable traps pim neighbor-change rp-mapping-change invalid-pim-message
snmp-server enable traps ipmulticast
snmp-server enable traps msdp
snmp-server enable traps atm subif
snmp-server enable traps entity
snmp-server enable traps syslog
snmp-server enable traps isakmp policy add
snmp-server enable traps isakmp policy delete
snmp-server enable traps isakmp tunnel start
snmp-server enable traps isakmp tunnel stop
snmp-server enable traps ipsec cryptomap add
snmp-server enable traps ipsec cryptomap delete
snmp-server enable traps ipsec cryptomap attach
snmp-server enable traps ipsec cryptomap detach
snmp-server enable traps ipsec tunnel start
snmp-server enable traps ipsec tunnel stop
snmp-server enable traps ipsec too-many-sas
!
control-plane
!
!
line con 0
no modem enable
transport preferred all
transport output all
line aux 0
transport preferred all
transport output all
line vty 0 4
access-class 10 in
privilege level 15
password 7 094F471A1A0A
transport preferred ssh
transport input ssh
transport output ssh
!
scheduler max-task-time 5000
sntp logging
sntp server 51.89.151.183
!
end

 

4 Replies 4

bluesteel
Level 1
Level 1

sorry typo

should be

 

*****WLAN*****
(vpn-cli-tep)1.11

bluesteel
Level 1
Level 1

typo

 

 4. vpn-cli can not ping 192.168.100.254 on talktalk through tunnel
 5. 837 can ping 192.168.100.254 on talktalk

 

should be

 

 4. vpn-cli can not ping 192.168.2.254 on talktalk through tunnel
 5. 837 can ping 192.168.2.254 on talktalk

 

bluesteel
Level 1
Level 1

ok so I left ping -t on all night and found a relpy

 

I think the 837 is broken?

 

192.168.1.11(vpn-cli-tep)_192.168.3.10(vpn-cli-tip)

ping 192.168.2.254 -t (all night)

 

Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Reply from 192.168.2.254: bytes=32 time=37ms TTL=63
Request timed out.
Reply from 192.168.2.254: bytes=32 time=87ms TTL=63
Reply from 192.168.2.254: bytes=32 time=102ms TTL=63
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.

bluesteel
Level 1
Level 1

its definately routing down the vpn tunnel

 

192.168.1.11(vpn-cli-tep)_192.168.3.10(vpn-cli-tip)

pathping 192.168.2.254

 

C:\Users\Pam>pathping 192.168.2.254

Tracing route to 192.168.2.254 over a maximum of 30 hops

0 Dell [192.168.3.10]
1 192.168.2.253
2 * * *
Computing statistics for 25 seconds...
Source to Here This Node/Link
Hop RTT Lost/Sent = Pct Lost/Sent = Pct Address
0 Dell [192.168.3.10]
0/ 100 = 0% |
1 75ms 0/ 100 = 0% 0/ 100 = 0% 192.168.2.253

Trace complete.

C:\Users\Pam>