Re: send/receive data via eth0/1 external loop ?
From: Roland Kletzing <hidden>
Date: 2011-11-12 23:15:41
to confirm: IT WORKS! (tested with 2.6.38 kernel) :) more detail:
quoted
You can use accept_local flag and rule with pref 0: http://marc.info/?l=linux-netdev&m=125983955627148&w=2
this in itself is not enought to get it running, but with this one http://marc.info/?l=linux-netdev&m=129500124207256&w=2 (adapted for eth0/1), it looks good and i see packets flow between eth0/1 thanks again for the pointer ! regards Roland -----Ursprüngliche Nachricht----- Von: "Roland Kletzing" [off-list ref] Gesendet: 12.11.2011 19:50:33 An: "Julian Anastasov" [off-list ref] Betreff: Re: send/receive data via eth0/1 external loop ?
great, thanks! -----Ursprüngliche Nachricht----- Von: "Julian Anastasov" [off-list ref] Gesendet: 12.11.2011 19:31:13 An: "Roland Kletzing" [off-list ref] Betreff: Re: send/receive data via eth0/1 external loop ?quoted
Hello, On Sat, 12 Nov 2011, Roland Kletzing wrote:quoted
Hello, i`m searching for a while now, but i did not find a solution, so forgive when i`m (as a user) asking for expert help here. I want to do some network stress/burn-in and quality/reliability testing, i.e. i want to send/receive large amounts of data trough the systems network interfaces without the need of hogging the net or other systems. so, that test should run "loopback", i.e. connecting eth0+1 via crossover cable or via locally attached switch. I don`t want to use a second system for that. testing at ip/tcp level would be favourable , but raw eth level would be also fine. But how ? What appears simple on a first view, seems to be difficult.... :( All i came across is this report: http://www.zyztematik.com/?p=10 and this description of a patch: http://www.ssi.bg/~ja/send-to-self.txt Does somebody know a proper way of achieving this without patching the kernel ?You can use accept_local flag and rule with pref 0: http://marc.info/?l=linux-netdev&m=125983955627148&w=2 Regards -- Julian Anastasov [off-list ref]
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