[plug] securely tunneling UDP traffic

[Craig Ringer]

Hi all

I've been beating my head against a wall for a while on this one so I 
though I'd see if anybody on PLUG had any ideas.

I need to tunnel UDP traffic between a number of hosts, very much in the 
style of ssh port forwarding tunnels. Unfortunately, ssh only seems to 
tunnel TCP traffic (netstat -lunp doesn't show it listening to a udp 
port when a portforward is established; nothing in the man pages).

I /really/ don't want to go for a full IPsec VPN, as I'm looking at 
connecting several different hosts and only need to protect traffic on 
one port. FreeS/WAN is IMHO far too clunky for me to wish to use it at 
this point and for this application.

I've found some info on ssh port forwarding of RPC services, but I need 
to forward snmp traffic and a few other things, not RPC. While SNMP 
supports TCP, not all client programs do and some of the other services 
I'm trying to use don't do TCP transport at all.

As a last resort, I suppose I could use ssh as the transport for a ppp 
session :-(

So - ideas?

Craig Ringer