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Unable to delete Stale/Obsolete statc routes in Cisco IOS
Posted on Jul 03, 2008 under Cisco | No CommentTags:Catalyst-3750 Cisco cisco-switch ios IP-Routing routing-table static-route wan
Today, I had to troubleshoot a very peculiar problem on my Cisco Catalyst 3750 switches in two different sites. To cut a long story short, both the sites originally had IPSec VPNs over ADSL internet andtherefore static routes added to pass through their VPN firewalls. However, with a recent WAN migration with leased lines, all traffic moved to the WAN routers.
However, the Static Routes became stale (obsolete) and we were unable to delete the static routes. The routes are not in the running config (no "ip route command in config") and a reboot wouldn't help.
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