I used a route-map to forward a large range of ports to a static IP. Soon after I implemented the NAT commands the router stopped responding and then rebooted.
"sho ip nat trans" showed the following:
icmp 216.100.100.37:1700322640 192.168.100.251:1700322640 63.65.190.161:1373 63.65.190.161:1373
I used the following lines to configure the NAT port range forward.
access-list 112 permit tcp host 192.168.100.251 range 6881 6999 any
!
route-map MyNat permit 10
matchip address 112
!
ip nat inside source static 192.168.100.251 216.100.100.37 route-map MyNAT extendable
The existing NAT commands were:
ip nat inside source static tcp 192.168.100.251 12435 216.100.100.37 12435
ip nat inside source static udp 192.168.100.251 52145 216.100.100.37 52145
