Protocols And Standards - HP FlexNetwork NJ5000 User Manual

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Sub-option 1—Padded with the VLAN ID and interface number of the interface that received
the client's request. The following figure gives its format. The value of the sub-option type is 1,
and that of the circuit ID type is 0.
Figure 242 Sub-option 1 in normal padding format
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Sub-option 2—Padded with the MAC address of the DHCP relay agent interface or the MAC
address of the DHCP snooping device that received the client's request. The following figure
gives its format. The value of the sub-option type is 2, and that of the remote ID type is 0.
Figure 243 Sub-option 2 in normal padding format

Protocols and standards

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RFC 2131, Dynamic Host Configuration Protocol
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RFC 2132, DHCP Options and BOOTP Vendor Extensions
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RFC 1542, Clarifications and Extensions for the Bootstrap Protocol
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RFC 3046, DHCP Relay Agent Information Option
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RFC 3442, The Classless Static Route Option for Dynamic Host Configuration Protocol (DHCP)
version 4.
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