[Dibbler] Problem with Prefix Delegation

Francois-Xavier Le Bail fx.lebail at yahoo.com
Mon Jan 7 10:36:29 CET 2008


Hello,

I try to do prefix delegation with Dibbler but its
work unexpected  : the delagated prefix is not in the 
expected range.
example : 3000:4000:5000:121c not in Pool
3000:4000:5000:1230:: - 3000:4000:5000:123f:ffff
:ffff:ffff:ffff.

Am I missing something ?

Here are the client.conf and server.conf files and the
server debug messages.

Regards,
Francois-Xavier Le Bail

-------------------------------------------------------------------------------
# /etc/dibbler/client.conf

inactive-mode

log-mode short

log-level 8

iface "eth0" {
  pd
}
-------------------------------------------------------------------------------
# /etc/dibbler/server.conf

log-level 8

log-mode short

preference 0

iface "eth3" {

  // also ranges can be defines, instead of exact
values
  t1 1800
  t2 2700
  prefered-lifetime 3600
  valid-lifetime 7200

  class {
    pool 2000:1::/64
  }

#assign /64 prefixes from this pool
  pd-class {
    pd-pool 3000:4000:5000:1234::/60
    pd-length 64
  }
}
-------------------------------------------------------------------------------
| Dibbler - a portable DHCPv6, version 0.7.0RC1
(SERVER, Linux port)
[...]
52:09 Server Debug     PD: Client will receive /64
prefixes (T1=1800..1800, T2=2700..2700).
52:09 Server Debug     PD: Pool 3000:4000:5000:1230::
- 3000:4000:5000:123f:ffff:ffff:ffff:ffff, pool
length: 60.
52:09 Server Debug     PD: Up to 16 prefixes may be
assigned.
52:09 Server Debug     0 per-client configurations
(exceptions) added.
52:09 Server Debug     Parsing
/etc/dibbler/server.conf done.
52:09 Server Debug     1 interface(s) specified in
/etc/dibbler/server.conf
52:09 Server Info      Interface eth3/5 configuration
has been loaded.
52:09 Server Notice    Running in stateful mode.
[...]
52:09 Server Notice    Creating multicast (ff02::1:2)
socket on eth3/5 (eth3/5)interface.
[...]
52:15 Server Debug     Received 44 bytes on interface
eth3/5 (socket=4, addr=fe80::203:47ff:fedf:32ac.).
52:15 Server Notice    Received SOLICIT on
eth3/5,TransID=0xb19e33, 3 opts: 1 25 8, 0 relay(s).
52:15 Server Debug     0 answers buffered. Old reply
for transID=b19e33 not found. Generating new answer.
52:15 Server Notice    PD option (with IAPREFIX
suboptions missing) received.
52:15 Server Debug     PD: Client requested
unspecified (::) prefix. Hint ignored.
52:15 Server Info      PD:(would be) assigned
prefix(es):3000:4000:5000:121c::/64
52:15 Server Debug     Preference set to 0.
52:15 Server Notice    Sending ADVERTISE on
eth3/5,transID=0xb19e33, opts: 1 252 7, 0 relay(s).
[...]
-------------------------------------------------------------------------------




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