[plug] securely tunneling UDP traffic

William Kenworthy billk at iinet.net.au
Mon Dec 16 15:53:12 WST 2002


Use zebedee.  I have a multiport tunnel (tcp only, but zebedee does udp
as well) for vnc, imap and smtp between linux (2 machines, c version)
and solaris(java server).  Is not a secure shell like ssh (but can
tunnel telnet and even ssh if you want), just a compressed, encrypted
tunnel.  You can also do authentication (server/client unique keys). 
Only downside is it can be cryptic.

BillK


On Mon, 2002-12-16 at 14:44, Craig Ringer wrote:
> 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
> 
> 
> 




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