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Cisco Bug: CSCta56747 - FWSM should send gratuitous arp for configured global IP addresses

Last Modified

Sep 09, 2016

Products (1)

  • Cisco Catalyst 6500 Series Firewall Services Module

Known Affected Releases


Description (partial)


This is an enhancement request only. This defect is filed so, that the FWSM will send gratuitous arp for all the global IPs configured in case of a mac-address change.


1. When  the primary FWSM is replaced,  the secondary FWSM presently active will assume the new active mac-address of the replaced primary FWSM as it will be new active mac-address.


2. when the units failover

In both the above conditions, the FWSM only sends gratuitous arp for its itnerface IP addresses as documented here:

3.1 Doc:

3.2 Doc:

4.0 Doc:
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