Quoting Dale Bewley <dlbewley(a)lib.ucdavis.edu>:
Did you figure it out yet?
No I didn't.
I can not quite tell what you're doing. Who is that blue router
in your
diagram? Maybe you are using a router icon to indicate a switch?
I am, sorry. Didn't find any switch icons in dia.
At any rate if I had to guess it sounds like you are expecting to
speak
from eth0:0 IP when you are actually speaking from eth0 IP. This you
could problably confirm with a tcpdump on the target machine while you
probe from the other. If so, you could fix that with policy routing AKA
source routing. i.e. `ip rule help`. Look at your ARP tables too just in
case.
I'll have a look. Thanx for the idea...