dhcpd-options(5) dhcpd-options(5)
+R\bRE\bEL\bLA\bAY\bY A\bAG\bGE\bEN\bNT\bT I\bIN\bNF\bFO\bOR\bRM\bMA\bAT\bTI\bIO\bON\bN O\bOP\bPT\bTI\bIO\bON\bN
+ An IETF draft, draft-ietf-dhc-agent-options-03.txt,
+ defines a series of encapsulated options that a relay
+ agent can add to a DHCP packet when relaying it to the
+ DHCP server. The server can then make address allocation
+ decisions (or whatever other decisions it wants) based on
+ these options. The server also returns these options in
+ any replies it sends through the relay agent, so that the
+ relay agent can use the information in these options for
+ delivery or accounting purposes.
+
+ The current draft defines two options. To reference
+ these options in the dhcp server, specify the option space
+ name, "agent", followed by a period, followed by the
+ option name. It isn't useful to specify these options to
+ be sent, nor is it useful to reference them at all in the
+ client. o\bop\bpt\bti\bio\bon\bn a\bag\bge\ben\bnt\bt.\b.c\bci\bir\brc\bcu\bui\bit\bt-\b-i\bid\bd _\bd_\ba_\bt_\ba_\b-_\bs_\bt_\br_\bi_\bn_\bg;\b;
+
+ The circuit-id suboption encodes an agent-local identi
+ fier of the circuit from which a DHCP client-to-server
+ packet was received. It is intended for use by agents
+ in relaying DHCP responses back to the proper circuit.
+ The format of this option is currently defined to be
+ vendor-dependent, and will probably remain that way,
+ although the current draft allows for for the possibil
+ ity of standardizing the format in the future.
+
+ o\bop\bpt\bti\bio\bon\bn a\bag\bge\ben\bnt\bt.\b.c\bci\bir\brc\bcu\bui\bit\bt-\b-i\bid\bd _\bd_\ba_\bt_\ba_\b-_\bs_\bt_\br_\bi_\bn_\bg;\b;
+
+ The remote-id suboption encodes information about the
+ remote host end of a circuit. Examples of what it
+ might contain include caller ID information, username
+ information, remote ATM address, cable modem ID, and
+ similar things. In principal, the meaning is not
+ well-specified, and it should generally be assumed to
+ be an opaque object that is administratively guaranteed
+ to be unique to a particular remote end of a circuit.
+
S\bSE\bEE\bE A\bAL\bLS\bSO\bO
dhcpd.conf(5), dhcpd.leases(5), dhclient.conf(5), dhcp-
- eval(5), dhcpd(8), dhclient(8), RFC2132, RFC2131.
+ eval(5), dhcpd(8), dhclient(8), RFC2132, RFC2131, draft-
+ ietf-dhc-agent-options-??.txt.
A\bAU\bUT\bTH\bHO\bOR\bR
The Internet Software Consortium DHCP Distribution was
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