IP Aliased machine/routes (fwd)

MegaZone (megazone@livingston.com)
Fri, 27 Sep 1996 19:45:53 -0700 (PDT)

Once upon a time Jeff T. Carneal shaped the electrons to say...
>I'm trying to get my portmasters to be able to see a machine that I've
>recently setup an IP alias on. The machine's "normal" IP address (eth0)
>is 206.40.219.21. The alias on the machine (eth0:0) is 207.87.196.21.
>Now, I can ping both of those IP's from that machine itself, and from
>another host on our network (after adding the route to that network).
>This is all well and good, but I can't seem to add the correct route to
>my PM2E-30's :(
>
>The IP of my test portmaster is 206.40.219.8. I believe I've tried:
>
>add route 207.87.196.0 206.40.219.8 1

You CANNOT do this - period. NEVER use the IP of the PM as a gateway.

The PM can see one and only one network on an interface, that is all.
You will not be able to make the PM see both IPs of that host directly,
it can only see IPs on the network that ether0 is on. To see the other
IP you MUST have a gateway someone on the network that sees both of them,
and set the route in the PM to use that gateway.

-MZ

--
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