linux-kernel - Re: UDP question.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <a885b78b0609150007u239cf363l40dd122165f7b516@mail.gmail.com>
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/