re[Pdns-users] ply from unexpected source: x.x.x.x#16225, expected x.x.x.x#53

[InterNetX - Marco Schrieck]

Hello,

Maybee its an old dig version on your system ?
Since July 2008 nameserver do source port randomization because the kaminsky bug.

Regards
Marco

On Tue, Mar 17, 2009 at 01:42:28AM -0700, misterd wrote:
> 
> PowerDNS server problem:
> 
> if i dig for a domain in my slave server i get the following output
> dig @x.x.x.x www.xxx.nl
> 
> ;; reply from unexpected source: x.x.x.x#16225, expected x.x.x.x#53
> ;; reply from unexpected source: x.x.x.x#16225, expected x.x.x.x#53
> ;; reply from unexpected source: x.x.x.x#16225, expected x.x.x.x#53
> 
> ; <<>> DiG 9.3.4-P1.1 <<>> @x.x.x.x www.xxx.nl
> ; (1 server found)
> ;; global options:  printcmd
> ;; connection timed out; no servers could be reached
> 
> tcpdump -ni any port 53
> 
> 13:04:59.170932 IP y.y.y.y.53 > z.z.z.z.48423: 12475*- 1/0/0 A z.z.z.z (49)
> 13:05:04.178045 IP z.z.z.z.48423 > y.y.y.y.53: 12475+ A? www.xxx.nl. (33)
> 13:05:04.178187 IP y.y.y.y.53 > z.z.z.z.48423: 12475*- 1/0/0 A z.z.z.z (49)
> 13:05:09.187709 IP z.z.z.z.48423 > y.y.y.y.53: 12475+ A? www.xxx.nl. (33)
> 13:05:09.187860 IP y.y.y.y.53 > z.z.z.z.48423: 12475*- 1/0/0 A z.z.z.z (49)
> 
> where x.x.x.x is outside ip-adres (ip-adres of router)
> where y.y.y.y is inside ip-adres (local ip-adres of machine)
> where z.z.z.z is ip-adres of server doing the dig request
> 
> why do i get an answer on the wrong port?
> everything looks good but it doesn't work, any help or tips?
> 
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> 
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> 

Marco Schrieck

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