linux-kernel - Re: Wired behaviour with IPv6 over PPP

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: <48354318.60202@katalix.com>
Date:	Thu, 22 May 2008 10:55:36 +0100
From:	James Chapman <jchapman@...alix.com>
To:	Matthias Cramer <matthias.cramer@...erway.ch>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	netdev@...r.kernel.org
Subject: Re: Wired behaviour with IPv6 over PPP

Andrew Morton wrote:
> On Wed, 21 May 2008 14:56:43 +0200 Matthias Cramer <matthias.cramer@...erway.ch> wrote:
> 
>> Hi All
>>
>> I have a very wired behaviour when doing IPv6 over PPPoE.
>>
>> The situation:
>>
>> A linux box connected to a DSL Modem, on the other side is a Cisco LNS which terminates the PPP session (actually L2TP).
>> I have control over both ends.
>>
>> When I have net.ipv6.conf.all.forwarding set to 0 then the ppp Interface gets a IPv6 address from the Cisco via IP6CP.
>> When I have net.ipv6.conf.all.forwarding set to 1 them the ppp Interface does not get an address, it has only a normal link local address.

What do you mean by normal link local address?

>> When I start the ppp session with forwarding set to 0 I can ping out and there exists a default route to ppp0 , then I switch forwarding to 1
>> the default route disappears and therefore routing does not work any longer.

Did this work with previous kernel versions?

Does pppd log any errors?

>>
>> Is this a known behaviour ?
>>
>> Or am I doing something the wrong way ?
>>
>> Kernel version is 2.6.25

-- 
James Chapman
Katalix Systems Ltd
http://www.katalix.com
Catalysts for your Embedded Linux software development

--
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/