I have a problem with a VPN tunnel on a 1841 series
The router has four tunnels, all of which show as UP with sh crypto sessions.
I can ping down three of the tunnels but not the fourth. This router has an almost identical config to a number of other routers on our network, which all work.
I have attached a modified config. The network I can't ping is 192.168.0.0.
Show version output
Cisco IOS Software, 1841 Software (C1841-ADVIPSERVICESK9-M), Version 12.4(3f), RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 18-Aug-06 17:42 by alnguyen
ROM: System Bootstrap, Version 12.3(8r)T9, RELEASE SOFTWARE (fc1)
XXX uptime is 2 days, 21 hours, 2 minutes
System returned to ROM by reload at 15:36:59 UTC Fri Jun 8 2007
System image file is "flash:c1841-advipservicesk9-mz.124-3f.bin"
Cisco 1841 (revision 6.0) with 237568K/24576K bytes of memory.
Processor board ID FCZ104211TW
2 FastEthernet interfaces
2 Virtual Private Network (VPN) Modules
DRAM configuration is 64 bits wide with parity disabled.
191K bytes of NVRAM.
62720K bytes of ATA CompactFlash (Read/Write)
Configuration register is 0x2102
Show crypto session for the tunnel in question
Session status: UP-NO-IKE
Peer: 84.12.90.XXX port 500
IPSEC FLOW: permit ip 172.16.164.0/255.255.255.0 192.168.0.0/255.255.255.0
Active SAs: 2, origin: crypto map
Any help would be gratefully received