Re: multi-homed host networking weirdness

Chris Zwilling (chris@cloudnet.com)
Mon, 31 Aug 1998 15:27:54 -0500 (CDT)


On Mon, 31 Aug 1998, Jonathan Corbet wrote:

> Here's a problem I've been seeing for a while; I just verified that 2.1.119
> still has it, so I'll send it in while it's fresh.
>
> The system in question has two network cards (3c905's, but I doubt that
> matters), each on a separate class C subnet (call them 78 and 80). No
> routing daemon is running; there is a simple default route on the .80
> subnet. In general, everything works great, except:
>
> If you try to access the 78 interface, no responses ever come back. 78
> works great for other machines on that subnet, but it can not be accessed
> from any other network. This create problems when trying to access the
> host from outside the local nets; if DNS puts the 78 address first,
> attempted connections will time out and fail.
>

Hello!

Do you have a route statment for the .78 interface? Can other machines
ping the .78 interface? (my suspicion is no)

Try: route add -net xxx.xxx.78.xxx dev ethx

;-----------------------------------------;
; ; Chris Zwilling
; Don't let people drive you crazy ; chris@cloudnet.com
; when you know it's in walking distance ; System Administrator
; ; 320.240.8243
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