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Cisco Bug: CSCtc95658 - Multicast UDP checksum not recalculated post NAT with GRE tunnel

Last Modified

Jan 28, 2017

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)


When NAT is used to translate source IP of Multicast traffic, the UDP checksum is not re-calculated post-NAT.


This is seen only when we have multiple tunnels using the same tunnel source
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