HP VPN Firewall Appliances Network Management Configuration Guide

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{ Sub-option 1—Contains the VLAN ID of the interface that received the client's request, module
(subcard number of the receiving port on a centralized device or slot number of the receiving
port on a distributed device) and port (number of the receiving port). The value of the sub-option
type is 1, and the value of the circuit ID type is 0.
Figure 93 Sub-option 1 in standard padding format
{ Sub-option 2—Contains the MAC address of the DHCP snooping device that received the
client's request. The value of the sub-option type is 2, and that of the remote ID type is 0. It has
the same format as sub-option 2 in normal padding format. See Figure 88.
Protocols and standards
• RFC 2131, Dynamic Host Configuration Protocol
• RFC 2132, DHCP Options and BOOTP Vendor Extensions
• RFC 1542, Clarifications and Extensions for the Bootstrap Protocol
• RFC 3046, DHCP Relay Agent Information Option
• RFC 3442, The Classless Static Route Option for Dynamic Host Configuration Protocol (DHCP)
version 4