Hello,
we tried to configure a bootp helper on a Juniper J2320 with Junos 9.1R1.8.
At first we started to configure the helper under the routing-instance (vrf)
via the following configuration:
vrf-yellow {
instance-type vrf;
interface ge-0/0/0.423;
route-distinguisher xxx:xxx;
vrf-target target:xxx:xxx;
vrf-table-label;
forwarding-options {
helpers {
bootp {
server 1.2.3.4;
}
}
}
}
With this configuration, no client connected to an interface connected to
interface ge-0/0/0.423 was able to get an address delivered by the remote
dhcp-server. The dhcp-server is reachable from the network configured in
ge-0/0/0.423.
As a workaround we tried to delete the section forwarding-options from the
routing-instance and put it into the global forwarding options, referreing
to the routing-instance:
vrf-yellow {
instance-type vrf;
interface ge-0/0/0.423;
route-distinguisher xxx:xxx;
vrf-target target:xxx:xxx;
vrf-table-label;
}
forwarding-options {
helpers {
bootp {
server 1.2.3.4 routing-instance vrf-yellow;
}
}
}
>From this point the dhcp-helper was working fine. What is the difference
between configuring the bootp helper inside the routing-instance and putting
it into the global forwarding options? I can't find any differences within
the documentation. Is there a difference, which ip-address (wan or lan) is
used as the source-address for the unicast-request forwarded to the
dhcp-server?
Kind regards,
Hendrik
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