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Cisco Bug: CSCvs55409 - Ethernet Trailer or additional bytes are added by 9300 in GRE Tunnel

Last Modified

Sep 19, 2020

Products (1)

  • Cisco IOS

Known Affected Releases

16.9.4 17.3

Description (partial)

Cat9300 switch might add additional bytes [padding] to IP packets with length less than 72 bytes coming through GRE tunnel

Cat9300 switch configured with GRE tunnel
IP packets with size less than 72B are coming in via GRE tunnel and leaving via regular interfaces
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