lkml.org 
[lkml]   [2007]   [Dec]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: sockets affected by IPsec always block (2.6.23)
From
From: Simon Arlott <simon@fire.lp0.eu>
Date: Tue, 04 Dec 2007 18:53:19 +0000

> If I have a IPsec rule like:
> spdadd 192.168.7.8 1.2.3.4 any -P out ipsec esp/transport//require;
> (i.e. a remote host 1.2.3.4 which will not respond)
>
> Then any attempt to communicate with 1.2.3.4 will block, even when using non-blocking sockets:

If you don't like this behavior:

echo "1" >/proc/sys/net/core/xfrm_larval_drop

but those initial connection setup packets will be dropped while
waiting for the IPSEC route to be resolved, and in your 8 hour case
the TCP connect will fail.

Anyways, the choice for different behavior is there, select it
to suit your tastes.


\
 
 \ /
  Last update: 2007-12-05 07:09    [W:0.066 / U:5.556 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site