From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arthur van Leeuwen Date: Sat, 27 Apr 2002 12:02:54 +0000 Subject: Re: [LARTC] Fwmark problem - policy routing does not work. Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org On Sat, 27 Apr 2002, Adrian Chung wrote: > On Sat, Apr 27, 2002 at 10:25:24AM +0200, Arthur van Leeuwen wrote: > > On Fri, 26 Apr 2002, Adrian Chung wrote: > > > > > When you add a route that sets a src like: > > > > > > ip route add table 192.168.1.0/24 src 192.168.1.11 dev eth0 > > > > > > The "src" doesn't specify the source IP to put in the packet (it's not > > > network address translation, like SNAT in iptables), it just specifies > > > which local source IP the routing mechanisms should use to determine > > > where to route the packet. > > > > Actually, it is more subtle than that. The 'src' *does* specify the source > > IP to put in the packet *if* the packet doesn't have a source IP yet. This > > only holds true for packets generated locally. > > Ah okay, that makes sense... But I think in both our cases the > packets were generated locally, so the 'src' flag should have set the > source IP. > > Is it possible for the application (telnet in my case) to explicitly > bind to a socket and set it's source IP? That could explain why the > rule has no effect since by the time the packet reaches the routing > system, it already has a source IP set. Yes, that is possible. Doei, Arthur. -- /\ / | arthurvl@sci.kun.nl | Work like you don't need the money /__\ / | A friend is someone with whom | Love like you have never been hurt / \/__ | you can dare to be yourself | Dance like there's nobody watching _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/