I've attached two TXT files with the configurations of the two cisco routers 837.
The problem is that the Router2 has dynamic IP, and to establish the tunnel have to do a ping from the interface to the ethernet 0 Router1.
You may autonegotiate the connection?
Solved! Go to Solution.
On our router 2 instead you can setup IP SLA with a loopback interface, something like this:
ip sla 10
icmp-echo x.x.x.x source-ip or source-interface loopback0 etc
ip sla schedule 10 life forever start-time now
thank you very much for your answer. I've updated the settings and I have gained a new forum.
By now not working. I could not use the exact settings as you have made me because the version of IOS does not.
A router with ios 837: c837-k9o3sy6-mz.124-25d.bin
What is missing from the configuration to run the loopback?
Cisco IOS Software, C837 Software (C837-K9O3SY6-M), Version 12.4(25d), RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Wed 18-Aug-10 12:51 by prod_rel_team
ROM: System Bootstrap, Version 12.2(11r)YV1, RELEASE SOFTWARE (fc1)
System returned to ROM by reload
System restarted at 17:04:51 UTC Thu Jan 17 2013
System image file is "flash:c837-k9o3sy6-mz.124-25d.bin"
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Cisco C837 (MPC857DSL) processor (revision 0x501) with 44237K/4915K bytes of memory.
Processor board ID xxx, with hardware revision 0000
CPU rev number 7
2 Ethernet interfaces
4 FastEthernet interfaces
1 ATM interface
128K bytes of NVRAM.
12288K bytes of processor board System flash (Read/Write)
2048K bytes of processor board Web flash (Read/Write)
Configuration register is 0x2102