US 12,224,978 B2
Packet processing method and apparatus
Yanping Xu, Beijing (CN); Liang Xia, Shenzhen (CN); and Xiaohui Tong, Beijing (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on May 10, 2023, as Appl. No. 18/315,365.
Application 18/315,365 is a continuation of application No. PCT/CN2021/109153, filed on Jul. 29, 2021.
Claims priority of application No. 202011256559.2 (CN), filed on Nov. 11, 2020.
Prior Publication US 2023/0283588 A1, Sep. 7, 2023
Int. Cl. H04L 61/5007 (2022.01); H04L 9/40 (2022.01); H04L 101/659 (2022.01)
CPC H04L 61/5007 (2022.05) [H04L 63/1416 (2013.01); H04L 2101/659 (2022.05); H04L 2463/146 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A packet processing method, performed by a first communication apparatus, and the method comprising:
obtaining a first internet protocol version 6 (IPv6) packet, wherein a packet header of the first IPV6 packet comprises a first signature, and the first signature is for verifying whether the first IPv6 packet passes through a second communication apparatus in a forwarding process;
forwarding the first IPV6 packet;
wherein the first signature which is determined by fixed-length data in payloads of the first IPv6 packet uniquely identifies the first IPV6 packet, and is different from signatures of other IPv6 packets; and
wherein the first signature is obtained by performing hash calculation based on first content in the first IPV6 packet, and the first content comprises the fixed-length data in the payload and anti-replay attack check information.