From: Andrew Beverley <andy@andybev.com>
To: "Prashant Batra (prbatra)" <prbatra@cisco.com>
Cc: netdev@vger.kernel.org
Subject: Re: IP forwarding on a linux IPSec gateway
Date: Tue, 31 Jan 2012 17:47:31 +0000 [thread overview]
Message-ID: <1328032051.2018.15.camel@andy-laptop> (raw)
In-Reply-To: <B97B134FACB2024DB45F524AB0A7B7F2059F2B32@XMB-BGL-419.cisco.com>
On Fri, 2012-01-27 at 15:31 +0530, Prashant Batra (prbatra) wrote:
> So, it's clear that linux gateway is able to protect the data and send
> to the connected gateway (ESP packets to outer IPs). And the second
> gateway is responding with ESP packet which is decoded on linux gateway
> and sent to the ip stack again by linux kernel (ICMP reply). But the
> reply doesn't reach the host on left subnet.
Didn't somebody else have a similar problem recently? He found that it
worked using one internet provider but not another. If you're not seeing
anything received in tcpdump in the left subnet, then I would suspect
that the packet is getting lost in the WAN somewhere. What happens when
you ping in the other direction?
Andy
next prev parent reply other threads:[~2012-01-31 17:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-27 10:01 IP forwarding on a linux IPSec gateway Prashant Batra (prbatra)
2012-01-31 17:47 ` Andrew Beverley [this message]
2012-01-31 18:11 ` Prashant Batra (prbatra)
2012-01-31 22:15 ` Andrew Beverley
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1328032051.2018.15.camel@andy-laptop \
--to=andy@andybev.com \
--cc=netdev@vger.kernel.org \
--cc=prbatra@cisco.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox