We have a problem where our replacement firewall is showing the MAC address on a 'show arp' command still show as "Incomplete". I've tried changing the main switch the network goes into with no luck.
I can't seem to get the syntax correct on the arp command. Seeing if anyone here might. Here are some results from my session:
show arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 192.168.1.22 0 0008.a109.4021 ARPA Ethernet0
Internet 192.168.1.254 0 Incomplete ARPA
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config
Configuring from terminal, memory, or network [terminal]? terminal
Enter configuration commands, one per line. End with CNTL/Z.
arp 192.168.1.1 0090.7F1A.0179 e0
% Invalid input detected at '^' marker.
-----------------------------
arp 192.168.1.1 0090.7F1A.0179 Ethernet0
^
% Invalid input detected at '^' marker.
-----------------------------
(config)#arp Ethernet0 192.168.1.1 0090.7F1A.0179
% Invalid input detected at '^' marker.
-----------------------------
arp e0 192.168.1.1 0090.7F1A.0179
^
% Invalid input detected at '^' marker.
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Now here I at least do not get an error:
arp 192.168.1.254 0090.7F1A.0177 arpa
Internet 192.168.1.254 - 0090.7f1a.0177 ARPA
-----------------------------
WHen I run 'show arp':
Internet 192.168.1.254 - 0090.7f1a.0177 ARPA
Notice the Interface field is blank!
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Here's what happens when I try to add the interface:
arp 192.168.1.254 0090.7F1A.0177 arpa Ethernet0
Bad ARP command - Interface may only be specified when bridging IP
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Anyone see what I'm doing wrong? I am using these 2 Cisco reference pages, both which have slight variations on the 'arp' command syntax:
http://www.cisco.com/en/US/products/hw/contnetw/ps792/products_configuration_guide_chapter09186a00801ee712.html
http://www.cisco.com/en/US/products/ps5763/products_command_reference_chapter09186a008029ec65.html
