On 11 Jun 2003 08:55:53 -0400 Ryan Wilkins <[EMAIL PROTECTED]> wrote:
> Hello.. > > I'm setting up a TCP protocol testbed for testing various enhanced TCP > stacks for use over high bandwidth, high latency links such as > Satellite. Due to hardware limitations of the FreeBSD boxes we're > using(1U rackmount), there are no expansion slots left for additional > network cards. This forces me to have to run some traffic over one > gateway and the rest of the traffic over another gateway, all through > one ethernet. The problem I have is I need to change the source > address of some packets based on destination address. I was able to > accomplish this in Linux using Source NAT. I'm not real well versed > in FreeBSD hence the reason I'm asking for any assistance here. Does > anyone have an idea how to change the source address based on > destination address? > yes. in the ipnat configuration file you should write something like this: map <interface> from <source> to <destination> -> <nat address> one thing though ... I've noticed the kernel trying to send the packets on the default gateway, no matter what the <nat address> was. So I used ipfw as well, for policy routing of nat'ed packets. I might have done something wrong as well, I really don't know, but searching the newsgroups archives I found no answer at all, and this seemed to be the only option. > Thanks in advance for any help. > > Ryan Wilkins > > _______________________________________________ > [EMAIL PROTECTED] mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to > "[EMAIL PROTECTED]" > -- Vlad GALU Network Administrator VipNET Bucharest tel: 021/3039940 email: [EMAIL PROTECTED] web: http://www.vipnet.ro PGP: http://mirapoint.vipnet.ro/public_key.pgp
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