From: Andrew Beverley <andy@andybev.com>
To: "cmlitguy@gmail.com" <cmlitguy@gmail.com>
Cc: netfilter@vger.kernel.org
Subject: Re: Make a redirect if NAT out interface is down
Date: Sun, 04 Mar 2012 20:04:08 +0000 [thread overview]
Message-ID: <1330891448.30413.347.camel@andrew-desktop> (raw)
In-Reply-To: <4F515C9B.3030209@gmail.com>
On Sat, 2012-03-03 at 01:49 +0200, cmlitguy@gmail.com wrote:
> Hello,
> I have a question about possibility of making a redirect if NAT out
> interface tun0 is down.
> This is iptables rule for Masquerading our network via VPN connection.
>
> iptables --table nat --append POSTROUTING --out-interface tun0 -j MASQUERADE -m comment --comment "Masquerading"
>
> When VPN goes down, we can't access some resources and we need to verify
> its status and establish it again.
> Is it possible to make a redirect of all traffic to another host - Web
> Site(via IP address) of tun0 is down ?
If the interface actually does "down", then I would use your operating
system's networking scripts to run a "down" script. E.g. for Debian
use /etc/network/interfaces
If it just stops responding, then I'd consider LSM[1] to monitor it and
do something similar.
[1] http://lsm.foobar.fi/
next prev parent reply other threads:[~2012-03-04 20:04 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-02 23:49 Make a redirect if NAT out interface is down cmlitguy
2012-03-04 20:04 ` Andrew Beverley [this message]
2012-03-07 16:19 ` cmlitguy
-- strict thread matches above, loose matches on Subject: below --
2012-03-02 23:45 cmlitgUy@gmail.com
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