Packet sending method, network device, storage medium, and program product

A packet sending method, comprising:

• receiving, by a network device, a first packet, wherein the first packet comprises a segment routing header (SRH) and a payload, the SRH comprises an encrypted field and an unencrypted field, the encrypted field comprises at least an encrypted segment identifier (SID) list, and the SID list indicates a transmission path of the first packet;
• decrypting, by the network device, the encrypted field to obtain an SRH that does not comprise an encrypted field;
• and
• processing, by the network device, the first packet based on the SRH that does not comprise an encrypted field.

A network device, comprising:

• a memory, storing instructions;
• and
• a processor connected to the memory, wherein when the instructions are executed by the processor, the network device is configured to:
• encrypt a segment routing header (SRH) in a packet, wherein the packet further comprises a payload, the encrypted SRH comprises an encrypted field and an unencrypted field, the encrypted field comprises at least an encrypted segment identifier (SID) list, and the SID list indicates a transmission path of the packet;
• and
• send the packet.