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Cisco Bug: CSCvt40938 - Packets with destination UDP 8472 (no vxlan hdr) get dropped if payload matches a valid etype

Last Modified

Mar 20, 2020

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases


Description (partial)

Packets > = 72 with destination UDP 8472 (no real VXLAN) and matching a valid ethertype in the payload portion of the UDP header will be dropped. Probability of a real data payload matching this is very less

(Match offset should be at 21st byte of the payload.

No Real Vxlan header but using UDP port 8472 and payload 21st byte matching a well known ethertype
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