Here is the issue.
I got a Cisco 3640 that runs GRE/IPSEC vpn tunnels. It has a single T1 connected to it and runs CBAC as well for security. About every 3 days the router gets a almost fully Incomplete ARP table and dies. It has to be either have the ARP cache cleared or rebooted for it to continue working. Below is a snap shot of the ARP table when this occurs. It is plugged in a Cisco 2950 on it ethernet with no special configuration. No intervlan routing or anything like that. Does anyone have any idea why this is occuring? I checked for some BUGS articles but had no luck for the IOS I am running.
Any help would be appreaciated.
Jamie
Internet 10.7.216.113 0 Incomplete ARPA
Internet 10.7.217.113 0 Incomplete ARPA
Internet 10.7.216.112 0 Incomplete ARPA
Internet 10.7.216.115 1 00d0.b744.ca70 ARPA FastEthernet0/0
Internet 10.7.217.114 0 Incomplete ARPA
Internet 10.7.217.115 0 Incomplete ARPA
Internet 10.7.216.114 0 Incomplete ARPA
Internet 10.7.217.124 0 Incomplete ARPA
Internet 10.7.216.125 0 Incomplete ARPA
Internet 10.7.217.125 0 Incomplete ARPA
Internet 10.7.216.124 0 Incomplete ARPA
Internet 10.7.217.126 0 Incomplete ARPA
Internet 10.7.216.127 0 Incomplete ARPA
Internet 10.7.217.127 3 0008.020c.b077 ARPA FastEthernet0/0
Internet 10.7.216.126 0 Incomplete ARPA
Internet 10.7.217.120 0 Incomplete ARPA
Internet 10.7.216.121 0 Incomplete ARPA
Internet 10.7.216.120 0 0009.6b90.16ad ARPA FastEthernet0/0
Internet 10.7.217.121 1 0090.27c1.8756 ARPA FastEthernet0/0
Internet 10.7.217.122 0 Incomplete ARPA
Internet 10.7.216.123 0 Incomplete ARPA
Internet 10.7.216.122 0 0002.a5af.48e2 ARPA FastEthernet0/0
Internet 10.7.217.123 0 Incomplete ARPA
Internet 10.7.217.100 0 Incomplete ARPA
Internet 10.7.216.101 0 Incomplete ARPA
Protocol Address Age (min) Hardware Addr Type Interface
Internet 10.7.217.101 0 Incomplete ARPA
Internet 10.7.216.100 0 Incomplete ARPA
Internet 10.7.217.102 0 Incomplete ARPA
Internet 10.7.216.103 0 Incomplete ARPA
Internet 10.7.217.103 0 Incomplete ARPA
Internet 10.7.216.102 0 Incomplete ARPA
Internet 10.7.217.96 0 Incomplete ARPA
Internet 10.7.216.97 0 Incomplete ARPA
Internet 10.7.217.97 0 Incomplete ARPA
Internet 10.7.216.96 0 Incomplete ARPA
Internet 10.7.217.98 0 Incomplete ARPA
Internet 10.7.216.99 0 Incomplete ARPA
Internet 10.7.217.99 0 Incomplete ARPA
