Wrong IP Lookup
fajarpri at arinet.org
Thu Nov 25 13:58:42 UTC 2004
On Thursday 25 November 2004 11:22 am, Norman Zhang wrote:
> I have BIND setup to take DDNS from a multihomed box. DDNS are enabled
> on both NICs. For example,
> dc1.mydomain.com 192.168.11.21 192.168.22.21
> However, the wrong IP may sometimes be resolved for the wrong subnet. Is
> there a way I can restrict hosts in 192.168.22.0/24 subnet to resolve to
> 192.168.22.21 only? And likewise for subnet 192.168.11.0/24?
> Norman Zhang
Are both nics connected to the same hub/switch?
If so, then you're playing an ARP roulette which is why sometimes it's ok
sometimes it's bust. That is when some pc asks "Who has 192.168.22.21?" The
kernel on the box would be confused and would make both nics answer it,
whichever comes first.
Fajar Priyanto | Reg'd Linux User #327841 | http://linux2.arinet.org
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