06-16-2006 10:44 AM - edited 03-03-2019 03:41 AM
Here are the logs:
Router#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet x.x.x.102 0 Incomplete ARPA
Internet x.x.x.101 0 Incomplete ARPA
Internet x.x.x.100 0 Incomplete ARPA
Internet x.x.120.99 0 Incomplete ARPA
Internet x.x.120.98 1 0040.10xx.xxxx ARPA FastEthernet0/0
Internet x.x.120.97 - 000e.83f6.28b6 ARPA FastEthernet0/0
A firewall is connected to the FastEthernet port 0/0. Router can't see MAC address of computers behind it. What can we do ?
Thanks in advance.
06-16-2006 10:58 AM
zaqtivi
It is hard to understand the topology when you obscure so much of the addresses. That makes it more difficult to understand your situation and to make good suggestions.
If the router is trying ARP for these addresses then it must believe that they reside in the local subnet. If these devices are on a segment that is on the other side of the firewall then perhaps they should be defined as a different subnet and the router given a route to that subnet with the next hop address being the firewall.
If that does not help then perhaps you can be more clear about the situation and the topology.
HTH
Rick
06-16-2006 11:21 AM
Hello,
in addition to Rick's post, what do you have configured as the default gateway on your clients ? Can your clients ping their default gateway ?
Regards,
GNT
06-16-2006 01:00 PM
My apologies. They are all connected on the same subnet behind a firewall.
Router#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet x.x.120.102 0 Incomplete ARPA
Internet x.x.120.101 0 Incomplete ARPA
Internet x.x.120.100 0 Incomplete ARPA
Internet x.x.120.99 0 Incomplete ARPA
Internet x.x.120.98 1 0040.10xx.xxxx ARPA FastEthernet0/0
Internet x.x.120.97 - 000e.83f6.28b6 ARPA FastEthernet0/0
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