Re: External IP to internal host
Marek Net Admin wrote:
I have IP address pool: 18.104.22.168 - 22.214.171.124
For Debian router I would assign 126.96.36.199
For hosts behind router (in internal network) I would assign
188.8.131.52-184.108.40.206 and this internal hosts must be visible from external
INTERNET ---------- Debian Router ----------- Host1, Host2.....
0/0 220.127.116.11 18.104.22.168 22.214.171.124
What should I do to make this working?
How are the external ips routed to you? That is, how is your internal
and exernal network configured? How is the router configured etc. It is
impossible to answer your question whithout knowing this.
You could for example route the external ips to your internal network
and then set up extra interfaces with external ips (this would involve
host routes since you have not a subnet but only some "stray"
ip-adresses, and it would also involve configuring the other routers on
your external net to use your router as a router to those ips). You
could also DNAT the external ips to internal ips on the router if the
external ips are router to your router. You could also change the ips of
the computers on the internal network to your knew addresses. There are
lot of options, and they depend on how the internal and external network
is configured and what you really want.
But as I said, it is hard to answer your question without knowledge of
your network configuration. Thus, what is the external ip of your router
- i guess it's among the 126.96.36.199-188.8.131.52 range since this is not
a subnet. In that case you either need to configure the router as a
switch (or just use an ordinary switch or switching hub), proxy arp for
the other addresses and then route them or DNAT them to your internal
network, or change the other routers on the external network to use your
router as the router to your external ips.
From: Alexandros Papadopoulos [mailto:email@example.com]
Sent: Friday, May 12, 2006 5:15 PM
Subject: Re: External IP to internal host
On Friday 12 May 2006 18:08, Marek Net Admin wrote:
I've received pool of external IP addresses from my ISP. How to
configure Debian 3.1 to work with this addresses in internal network?
I would like assign external addresses to internal host using DHCP and
I know how to do this, but i don't know host to make work external
addreses in internal network.
I'm not sure I understand. You've done what exactly? And what exactly
doesn't work? The ideal situation you're trying to achieve is...?
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