Date: Mon, 4 Oct 1999 15:51:40 +0200 From: Jeroen Ruigrok/Asmodai <asmodai@wxs.nl> To: Yusuf Goolamabbas <yusufg@outblaze.com> Cc: freebsd-questions@freebsd.org Subject: Re: Would like to mix static IP's and non-routable IP's on a LAN Message-ID: <19991004155140.E63946@daemon.ninth-circle.org> In-Reply-To: <19991004081357.27746.qmail@yusufg.portal2.com> References: <19991004081357.27746.qmail@yusufg.portal2.com>
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On [19991004 10:36], Yusuf Goolamabbas (yusufg@outblaze.com) wrote:
>Hi, I have a bunch of static IP's allocated to me (/26) network and I
>would like to reclaim some static IP's and replace them with non
>routable IP's (192.168.x.x). I read about NAT and tried to configure a
>machine with NAT and make it be the gateway.
>
>All machines currently have a netmask of 255.255.255.192 and if I use
>the 192.168.x.x address space. I get a netmask of 255.255.255.0. I am
>not sure if this mismatch is allowed since the machines are on the
>same segment
I assume the gateway to be multihomed [having two NICs or more].
This would mean that the first NIC has an official address and the other
NIC a local/free.
Then you could simply follow the directions from natd(8) and create a
working NAT set-up.
I don't think the netmask should be of any influence to the NAT working.
I have two interfaces, one fxp0 - the outgoing one, and ep0 the
LAN-side. I use this for successful NAT. Note that I haven't added any
more rules simply due to time restrictions ;)
ipfw=/sbin/ipfw
${ipfw} -f flush
${ipfw} add 4000 divert natd all from any to any via fxp0
${ipfw} add 65000 pass all from any to any
HTH,
--
Jeroen Ruigrok van der Werven/Asmodai asmodai(at)wxs.nl
The BSD Programmer's Documentation Project <http://home.wxs.nl/~asmodai>;
Network/Security Specialist BSD: Technical excellence at its best
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