Preview Tool

Cisco Bug: CSCur24883 - 6500 :: allows overwriting of ARP belonging to IP from NAT pool

Last Modified

Nov 27, 2020

Products (1)

  • Cisco 2600 Series Multiservice Platforms

Known Affected Releases


Description (partial)

On catalyst 6500 ARP entry for IP belonging to NAT pool points to incorrect MAC.
The MAC should be belonging to 6500, instead it belongs to other devices in the network.
Problem is seen whenever catalyst6500 receives GARP for IP belonging to NAT pool.

- Catalyst6500 performing nat.
- There is device in the network that would sent GARP for IP belonging to NAT pool eg. nexus configured with "ip local-proxy-arp"
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.