Date: Tue, 30 Apr 2002 18:00:03 -0700 From: Robin Chen <robinche@vividnet.com> To: freebsd-questions@FreeBSD.ORG Subject: NAT using real ip Message-ID: <3CCF3E13.637C110F@vividnet.com> References: <20020501023812.A37800@Deadcell.ant>
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Hello,
I have 2 providers giving me static ip access to the internet.
Generally I want to use provider A for all traffic because I have
several ip addresses to use, but I want to utilize provider B for all
http traffic. Can I utilize natd for this?
Currently I have a FreeBSD router as the main gateway to the internet
using provider A. I've also installed a nat server connected to
provider B. The nat server has 2 interfaces, fxp0 using ip address from
provider A and rl0 using ip address from provider B. The default route
for nat server is using provider B.
On the main gateway, I'm using:
ipfw add fwd nat.server.machine tcp from provider.a.ip to any 80
I've set up the nat server running natd -interface rl0 with following:
ipfw add divert natd tcp from any to any 80 via rl0
ipfw add allow ip from any to any
The result of the verbose output is:
Out [TCP] [TCP] client.provider.a.ip:4094 -> outside.web.site:80
aliased to
[TCP] provider.b.ip:4094 -> outside.web.site:80
but the client using provider a's ip cannot pull up any websites. What
do I need to change?
Thanks,
Robin
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