[Openswan Users] KLIPS MTU problem

Paul Wouters paul at xelerance.com
Tue Jun 28 11:36:51 EDT 2011

On Tue, 28 Jun 2011, Roel van Meer wrote:

> Paul Overton writes:
>> In Openswan (KLIPS) I have used the ?overridemtu=? setting to produce a
>> tunnel which never allows the UDP encap frames to fragment, however I have
>> found that  opensewan 2.6.33 ignores this directive.
> Not sure about the overridemtu setting, but the connection-specific 'mtu'
> setting was ignored in 2.6.33. This was fixed in 2.6.34. I'd suggest
> upgrading to 2.6.34 before trying anything else.
> As a workaround, with 2.6.34 you should be able to use the 'mtu' setting
> instead of 'overridemtu', if there really is a problem with overridemtu.

Ah yes, I forgot about that one! that option also works on NETKEY too.


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