Hi, all.
I used Static NAT in cisco 2811.
But, 2811 Router is not have ARP in ARP table
Topology is
Internet - Router - Backbone switch - L2 switch - Cisco 2811 Router (this router problem)
For example, currently in use the next table
192.168.0.100 -> 1.1.1.100,
192.168.0.101 -> 1.1.1.101,
192.168.0.102 -> 1.1.1.102
Router interface IP is 1.1.1.2/23, MAC address is AABB.1122.3344
another IP is 192.168.0.1/23, MAC address is AABB.1122.3345
Router# show ip arp
Internet 1.1.1.1 - AABB.1122.3344 ARPA
Internet 1.1.1.100 - AABB.1122.3344 ARPA
Internet 1.1.1.101 - AABB.1122.3344 ARPA
Internet 1.1.1.102 0 Incomplete ARPA
Internet 192.168.0.1 - AABB.1122.3345 ARPA
Internet 192.168.0.100 - 1111.1111.1111 ARPA
Internet 192.168.0.101 - 2222.2222.2222 ARPA
Internet 192.168.0.102 - 3333.3333.3333 ARPA
Router# ping 1.1.1.102
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.1.102, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
The next, Router config
!
interface fa0/0
ip address 1.1.1.2 255.255.254.0
ip nat outside
!
interface fa0/1
ip address 192.168.0.1 255.255.254.0
ip nat inside
!
ip nat pool nat 1.1.1.200 1.1.1.201 netmask 255.255.255.0
ip nat source static 192.168.0.100 1.1.1.100
ip nat inside source list 1 pool nat overload
ip nat inside source static 192.168.0.101 1.1.1.101
ip nat inside source static 192.168.0.102 1.1.1.102
!
access-list 1 permit 192.168.0.0 0.0.1.255
!
1.1.1.100, 1.1.1.101 ARP have in Backbone and L2 Switch's
but, Switch is not have ARP (1.1.1.102)
I had to upgrade OS at a cisco router.
I hope this issue's cause and workaround.
Thanks for your advice.
