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Cisco Bug: CSCsg40777 - Cannot reach CSM VIP when NATd at sup720 interface

Last Modified

Jan 31, 2017

Products (1)

  • Cisco Content Switching Module

Known Affected Releases


Description (partial)


- Traffic inbound on a Sup720 interface, destined for the Content Switch Module Vserver address, cannot be reached when the 
vserver address is being NATd. The first packet of a flow will reach the CSM, but all succeeding packets will fail. If the inbound traffic 
is moved to any other port, the traffic will traverse the Catalyst 6500 properly, and reach the CSM. 

- First observed in SXF3 code with sup720
- CSM running 2.1(2a)
- Vserver address is being NAT'd by supervisor
- Traffic is incoming on supervisor port
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Known Fixed Releases
  • Related Community Discussions
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