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Date: Fri, 15 Sep 2006 15:07:15 +0800 From: "xixi lii" <xixi.limeng@...il.com> To: "Jan Engelhardt" <jengelh@...ux01.gwdg.de> Cc: "Sven-Haegar Koch" <haegar@...net.de>, Linux-Kernel-Mailinglist <linux-kernel@...r.kernel.org> Subject: Re: UDP question. 2006/9/15, Jan Engelhardt <jengelh@...ux01.gwdg.de>: > > >> bind socket1.network adapter1... > >> bind socket2 network adapter2 > > > I am not really sure, but I think the bind to an adapter under linux only > > chooses the source ip, not really the adapter used to send the packets. > > To explicitly send things through a specific interface, you need to use > some magic, like PF_RAW. ping for example is one program that will do > this (-I option). > > > Did you check that the two destination ips have routes through different > > interfaces, and not go out through the same one? > > One cannot have the same subnet on multiple interfaces, because ARP > queries will only be sent through the first one. You need br0 (or bond0 > - depending on how you plan to plan your network) to make them one > interface. > > > Jan Engelhardt > -- My two adapters has two different IP address, and I bind one IP on one socket, do you mean that I alloc two socket and bind different IP is not helpful? In fact, all the packet sent from two socket is go out by one network adapter? xixi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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