Because the system performs a DHCP relay function, all DHCPv6 packets sent or received are encapsulated in DHCPv6 relay-forward and relay-reply messages.
The following items are values of key fields and options in DHCPv6 packets sent by the system:
Hop-count (0)
Link address (configurable via the CLI)
Peer-address (auto-generated based on the IKEv2 IDi)
Option 1 Client Identifier
DUID type (2)
Enterprise ID (6527)
Value is 1 byte that represents the IKEv2 IDi type plus the IKEv2 IDi in text format. The value of the first byte is the same as that of the first byte in Option 61 for DHCPv4.
Option 16 Vendor Class
Enterprise ID (6527)
Value (string ‟SROS IPsec”)
Option 18 Interface ID (private-SAP-id | private-interface-name; for example, tunnel-1.private:100 | priv-int)
Option 37 Remote Identifier
Enterprise ID (6527)
Value (IKEv2 IDi in text format)