Date: Wed, 24 Dec 1997 01:48:45 +0000 From: Brian Somers <brian@awfulhak.org> To: Chris Aubuchon <chrisa@commlet.com> Cc: questions@freebsd.org Subject: Re: natd/libalias question Message-ID: <199712240148.BAA18064@awfulhak.demon.co.uk> In-Reply-To: Your message of "Tue, 23 Dec 1997 15:12:58 CST." <9712231512.aa08867@commlet.commlet.com>
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> Greetings, > > Do the packet aliasing functions in libalias only work with private > IP addresses? 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16. No - any addresses are fair game :-) > I am setting up a firewall for our (as yet undelivered) internet line > and my predecessors decided to make our interior network 126.0.0.0/24. I plan > on changing this but for testing purposes of natd & ipfw I have left these > alone. It appears that libalias is not doing what is says it should. I have > natd started with -redirect_address 126.0.0.90 38.156.234.7 which according to > the man pages for libalias & natd should allow outgoing requests from 126.0.0.90to appear as 38.156.234.7 and incoming requests for 38.156.234.7 to go to > 126.0.0.90. > > Here is my network setup: > > 126.0.0.90 Internal machine > 38.156.234.5 2.2.5-RELEASE with natd and ipfw running > ed1 connected to 126.0.0.0/24 > ed0 connected to 38.156.234.0/24 > 38.156.234.3 2.2.5-RELEASE > > I run natd like so on 38.156.234.5: > natd -v -redirect_address 126.0.0.90 38.156.234.7 -n ed0 > > And I ping 38.156.234.3 from 126.0.0.90. Ping gets packets from 38.156.234.3 > but when I look at the output from natd I see: > > Out [ICMP] 126.0.0.90 -> 38.156.234.3 aliased to > 38.156.234.5 -> 38.156.234.3 > In [ICMP] 38.156.234.3 -> 38.156.234.5 aliased to > 38.156.234.3 -> 126.0.0.90 > > Now according to the manpages, the output above should have .5 replaced with > .7 > > Any ideas? Maybe the problem is that you're not quoting the argument to -redirect_address ? > Chris Aubuchon > chrisa@commlet.com > -- Brian <brian@Awfulhak.org>, <brian@FreeBSD.org>, <brian@OpenBSD.org> <http://www.Awfulhak.org> Don't _EVER_ lose your sense of humour....
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