Re: [Openvpn-users] Problem with mtu size

[Chad Z. H. <Ch...@Ho...>]

Chad Z. Hower wrote:
> WARNING: Bad encapsulated packet length from peer (18516), which must be 
>  > 0 and <= 1576 -- please ensure that --tun-mtu or --link-mtu is equal 
> on both peers -- this condition could also indicate a possible active 
> attack on the TCP link -- [Attemping restart...]


Solved this. A DNS entry was wrong and client was attempting to connect 
to a web server instead of openvpn.

Apparently this is the message that openvpn falls back to in such cases. 
Happened when I tried to connect to an FTP server as well. :)

Maybe OpenVPN could detect this in some sort of handshake that it is not 
talking to an OpenVPN server and provide a more accurate error?