On the suggestion of Dave Wresky, I just took a look at the ProxyArp
mini-Howto on Sunsite.
And I'm confused.
What's the practical difference between proxy-arp and plain old
IP aliasing?
Is one "better"?
In case it matters, my goal is to set up a bastion server so that it
routes certain requests to the internal network, depending upon which
IP address and port are specified in the incoming packet. At this point
it seems like proxy-arp and ip aliasing will both allow me to get the
bastion box answering on two or more IP addresses, but since this
machine is security-sensitive I don't want to blindly choose one or the
other.
Thoughts?
-m
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