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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)

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

Conditions:
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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