dns replies differ in src IP from query's dst IP (Bug?)
Guy Pazi
guypazi at netvision.net.il
Thu Nov 22 07:14:15 UTC 2001
Hi Alex,
Is it considered bad configuration?
Do you know how common is out there?
Thanks
Guy
> -----Original Message-----
> From: am134452 at ms-egmp02-01b.UK.Sun.COM
> [mailto:am134452 at ms-egmp02-01b.UK.Sun.COM]On Behalf Of Alex Madden
> Sent: Wednesday, 21 November, 2001 4:12 PM
> To: guypazi at netvision.net.il
> Subject: RE: dns replies differ in src IP from query's dst IP (Bug?)
>
>
> What happens is that the DNS server has more than one IP address, and is
> running the nameserver on a secondary IP address. It recieves the query
> on the secondary IP, and replies through its primary IP.
>
> In extreme cases (with multihomed hosts for instance) you can even see a
> reply from a different address space.
>
> Regards,
>
> Alex
>
> --
> Alex Madden - Remote Administration Centre Engineer - SunUK
> Phone - (01252)423490 / x23490
> E-mail - alex.madden at sun.com
>
>
>
>
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