Re: Setup of Internal Network with Many Real IPs
I read your excellent article, and a similar one at
http://www.sjdjweis.com/linux/proxyarp/ which really gave me some food for
thought. I'm attempting to do a similar thing (see my previous post) and one
of the things I'm wondering about with this proxy arp solution is if the router
even needs to have a "real" ip address if the gateway is set to the upstream?
If I understand the theory of the whole thing, I can give the router an ip (on
both interfaces) that would technically never be used, so doesn't have to be a
Also, with this proxy arp solution, it seems certain that everything traverses
netfilter (even if you use the upstream gateway). Do you know if it will also
go through the traffic control system?
Just curious because allocation of extra public IPs from our ISP is very
Thanks for your HOWTO.
Ph: Country code 676 - 27946 or 878-1332
Quoting Blars Blarson <email@example.com>:
> In article <20030521043926.GA22153@qk.com.au> firstname.lastname@example.org writes:
> >If I'm not mistaken, eth1 doesn't need an IP address. My only concern
> >now is, how will 235 and 236 be able to find 237 and vice-versa? That
> >will require more Iptables rules to route that traffic, correct?
> eth1 does require an IP, but can use the same one as eth0. Proxy arp
> can make the routing transparent to the hosts beond eth1. This is
> exactly the situation described in my article.
> Blars Blarson email@example.com
> "Text is a way we cheat time." -- Patrick Nielsen Hayden
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