[mdlug] dual homed and dual default routes?

[Aaron Kulkis]

Dean Durant wrote:
> Hello, I am trying to create a dual homed machine, that routes packets,
>  & runs squid.   
> 
> I had it set up so that eth0 was internal, and eth1 was external.  The
>  iptables example that I found that seemed to do what I wanted
>  had them switched, so I switched them.   Now for some reason, if the
>  internal network is working, I can't ping outside URLs.   I can change
>  the default gateway to be the external route, and then I can ping outside
>  URLs, but then the internal network stops working.    
> 
> Should it be easy to ping remote hosts on both the internal network and
>  the outside?

Everything *should* be easy.

Whether it *IS* easy or not is another question.