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RFC 3527
Title: Link Selection sub-option
for the Relay Agent Information Option for DHCPv4
Author(s): K. Kinnear, M. Stapp, R. Johnson, J. Kumarasamy
Status: Standards Track
Date: April 2003
Mailbox: kkinnear@cisco.com, mjs@cisco.com, jayk@cisco.com,
raj@cisco.com
Pages: 9
Characters: 16831
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-dhc-agent-subnet-selection-04.txt
URL: ftp://ftp.rfc-editor.org/in-notes/rfc3527.txt
This document describes the link selection sub-option of the
relay-agent-information option for the Dynamic Host Configuration
Protocol (DHCPv4). The giaddr specifies an IP address which
determines both a subnet, and thereby a link on which a Dynamic Host
Configuration Protocol (DHCP) client resides as well as an IP address
that can be used to communicate with the relay agent. The
subnet-selection option allows the functions of the giaddr to be split
so that when one entity is performing as a DHCP proxy, it can specify
the subnet/link from which to allocate an IP address, which is
different from the IP address with which it desires to communicate
with the DHCP server. Analogous situations exist where the relay
agent needs to specify the subnet/link on which a DHCP client resides,
which is different from an IP address that can be used to communicate
with the relay agent.
This document is a product of the Dynamic Host Configuration Working
Group of the IETF.
This is now a Proposed Standard Protocol.
This document specifies an Internet standards track protocol for
the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the
"Internet Official Protocol Standards" (STD 1) for the
standardization state and status of this protocol. Distribution
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Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute
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