09-02-2007 11:46 PM - edited 03-05-2019 06:14 PM
Hi,
Router A has a LAN interface with 2 physical ip address(pri + secondary IP). The primary inf is connected to the same firewall segment. The secondary inf is connected to the switch management IP.
After various ping to the secondary IP(192.1.1.10) from the switch, which failed, i did a 'show arp' on the router and realised that the switch ip is binded dynamically to the firewall MAC instead of the switch(3com) MAC.
interface Ethernet0/0
ip address 192.1.1.10 255.255.255.0 secondary
ip address 10.226.16.1 255.255.248.0
ipx network 1
!
Can anyone explain this? Is it a bug?
09-02-2007 11:51 PM
RouterA#show arp | in a373
Protocol Address Age (min) Hardware Addr
Internet 192.1.1.101 120 0000.a710.a373
Internet 192.1.1.102 120 0000.a710.a373
Internet 192.1.1.103 120 0000.a710.a373
Internet 192.1.1.99 120 0000.a710.a373
0000.a710.a373 is the MAC of the checkpoint Inf.
IPs are the switch mngt IP.
09-03-2007 03:05 AM
Is there any possibility of duplicate addresses.Please check the logs with "show logging" and look for any messgages.
09-03-2007 10:33 AM
try to eliminate the firewall and then ping the router, may be the firewall configuration is the cause
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