Hello there,
"forwarding-options helpers bootp" is not DHCP relay, it is a different
feature although they both use same socket.
To insert option 82, you need "forwarding-option dhcp-relay" feature which
requires a license.
BOOTP helper and dhcp-relay|dhcp-local-server cannot be configured together
( see above).
dhcp-relay and dhcp-local-server can be configured together in different
VRs/VRFs.
Thanks
Alex
----- Original Message -----
From: "Martin T" <m4rtn...@gmail.com>
To: <juniper-nsp@puck.nether.net>
Sent: Monday, September 17, 2012 1:15 PM
Subject: [j-nsp] DHCP option 82 under "forwarding-options helpers
bootp"configuration
Hi,
JUNOS(10.4R9.2 at M10i) supports DHCP relay agent information option
configuration under "forwarding-options helpers bootp". However,
despite the configuration, DHCP messages received by DHCP server do
not have option 82 present. For example I made such configuration:
root@labM10i> show configuration forwarding-options helpers bootp
dhcp-option82 {
circuit-id {
use-vlan-id;
}
remote-id {
use-string test;
}
vendor-id {
test;
}
}
description "helpers bootp test";
server 10.10.10.1;
interface {
ge-1/2/0.5;
}
root@labM10i>
..and executed dhclient in a broadcast domain associated with
interface ge-1/2/0.5. Packet capture results on a 10.10.10.1 DHCP
server can be seen here: http://cloudshark.org/captures/e963f493caf8
As you can see, there is no option 82 added.
Is it possible to add DHCP option 82 to messages forwarded to DHCP
server under "forwarding-options helpers bootp" configuration? Or is
this possible only with "dhcp-relay"? Latter would make more sense as
this option should be strictly DHCP
option(http://tools.ietf.org/html/rfc3046) not the BOOTP option?
regards,
martin
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