[Dibbler] Dibbler Relay Agent

chins chinmaya at gmail.com
Wed Feb 6 20:14:31 CET 2008


On Feb 1, 2008 2:22 AM, Tomasz Mrugalski <thomson at klub.com.pl> wrote:
> On Thu, 31 Jan 2008 somebody known as chins wrote:
>
> > Hi,
> > I am using dibbler relay agent to forward request it receives on eth0 to
> > eth1.
> > I noticed that the link-address header field in relay forward message is
> > empty. I am not sure how to configure dibbler to send that field out.
> > Because this field is null/empty my server (ISC DHCP) is crashing.
> > Can anyone please tell me how to fix this?

> I don't have time to double check, but i think it works as expected. I
> suppose you don't have global address on the interface you are forwarding
> the packets from (eth0), right?

I do have global address setup, it starts with FC00...

>
> link-address field name is a bit misleading. That is an address that
> allows indentification of the link, NOT link-local address (fe80...).
>

Yes, my server is expecting that information to allocate IP address.

> Also check relay log. I think there will be a warning about not being able
> to find global address.

Relay starts up fine ... there is no error related to global address

>
> Hope that helps. If not, send me relay-IfaceMgr.xml file. It is stored in
> /var/lib/dibbler

*<RelIfaceMgr>

  <IfaceIface name="sit0" ifindex="4" hwType="776" flags="128">
    <!-- PrefixLength configured to 166022464 -->
    <!-- 0 link scoped addrs -->
    <!-- 0 non-local addrs -->
    <Mac>00:00:00:00</Mac>
  </IfaceIface>

  <IfaceIface name="eth1" ifindex="3" hwType="1" flags="11043">
    <!-- PrefixLength configured to f0008 -->
    <!-- 1 link scoped addrs -->
    <Addr>fe80::**xxx:xxxx:xxxx**:474c</Addr>
    <!-- 1 non-local addrs -->
    fc00:0:4491::26    <Mac>xx:xx:xx:xx:47:4c</Mac>
    <IfaceSocket fd="4" port="547" iface="eth1"
addr="fe80::xxx:xxxx:xxxx:474c" ifaceonly="true" status="CONFIGURED" />
  </IfaceIface>

  <IfaceIface name="eth0" ifindex="2" hwType="1" flags="69699">
    <!-- PrefixLength configured to 4 -->
    <!-- 1 link scoped addrs -->
    <Addr>fe80::**yyy:yyyy:yyyy**:a689</Addr>
    <!-- 1 non-local addrs -->
    fc00:0:4491::40:26    <Mac>yy:yy:yy:yy:a6:89</Mac>
    <IfaceSocket fd="5" port="547" iface="eth0" addr="ff02::1:2"
multicast="true" ifaceonly="true" status="CONFIGURED" />
  </IfaceIface>

  <IfaceIface name="lo" ifindex="1" hwType="772" flags="65609">
    <!-- PrefixLength configured to 320 -->
    <!-- 0 link scoped addrs -->
    <!-- 1 non-local addrs -->
    ::1    <Mac>00:00:00:00:00:00</Mac>
  </IfaceIface>
</RelIfaceMgr>
*


>
> Cheers,
> Tomek
>
>
>
> _______________________________________________
> http://klub.com.pl/cgi-bin/mailman/listinfo/dibbler
>
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