[Openswan Users] Where did routes go with Openswan 2.6.31?
Scott T. Cameron
routehero at gmail.com
Mon Mar 14 10:16:36 EDT 2011
That's a problem with Windows, and most likely the bug around the number of
routes with non-default MTU routes incrementing but never decrementing.
Over time, this caused Windows machines to become unresponsive over the
There was a hotfix for this released by Microsoft.
On Mon, Mar 14, 2011 at 10:12 AM, Greg Scott <GregScott at infrasupport.com>wrote:
> > I never heard of tunnels crashing because of a bad MTU. I would not know
> which bug number that could relate to.
> It goes back to 2006 and version 2.4.something and by now it's ancient
> history. One customer was doing a Windows RDP session over an IPSEC tunnel.
> I shouldn't have said the tunnel crashed - the RDP session crashed. The
> whole tunnel didn't drop, just the RDP session. From the sending PC's point
> of view, I made its MTU smaller and the RDP sessions worked after that. So
> I posted a question about it in this forum and the suggestion was made to
> put in an updown script that reduced the MTU size on the route for the
> tunnel. I've been running all my tunnels that way since then. All with
> netkey - but I only noticed the routes were no longer there last week.
> - Greg
> Users at openswan.org
> Micropayments: https://flattr.com/thing/38387/IPsec-for-Linux-made-easy
> Building and Integrating Virtual Private Networks with Openswan:
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