Hi

Try  mtu '1496' and if u have a slow connection then 'mru' should be 296.
There is a problem with certain NIC-s....wich chips do u using?

Greetings

----- Original Message ----- 
From: "Mipam" <mipam@ibb.net>
To: <netbsd-help@netbsd.org>
Sent: Friday, July 12, 2002 5:05 PM
Subject: adsl + ipsec + mtu issues?


> Hi,
> 
> Anybody got experience with some mtu issues and using adsl?
> Things work allright, even the vpn works allright between
> two networks but sometimes connections arent comming through
> and are dropped. (netbsd setup with racoon and adsl connection).
> I cant find any mistakes in the config files and normally it works like
> a charm. Oh yes... the connections which arent comming through
> are from internal m$ machine which always have their DF set.
> Only thing i can think of is that sometimes fragmentation is needed
> to encap the packets and send it to the other network and with the
> DF bit that isnt possible. Though, i would expect icmp 3,4 back then....
> I am sure the tunnel is set up nicely and everything works fine.
> Its just that m$ machines got trouble.
> Only difference i can see is the df bit, so i figure mtu issues come 
> into play. Anybody got similair experiences?
> Bye,
> 
> Mipam.
> 
>