Hi will, Quoth will trillich, > when a linux wonk says <with real IP's, of course> > DEV=mytunnel > OUTSIDE_HERE=321.1.2.3 > OUTSIDE_THERE=789.9.8.7 > ip tunnel add $DEV \ > local $OUTSIDE_HERE \ > remote $OUTSIDE_THERE \ > mode gre > is the tunnel encrypted? if so, how can i confirm > that? if not, is there a way to do so? (maybe some > argument needs to be supplied to insmod?)
While I know very little about this VPN stuff (except port-forwarding using ssh, but I've posted everything I know about that here anyway), I would imagine that the easiest way to see if the traffic is encrypted or not is to sniff it and see if it's sending cleartext. Just use `sniffit -F mytunnel -i'. Telnet across your VPN, and select that socket in the sniffit interactive window. Type something (like uname -a) in the telnet session and see if you can see anything recognisable. This isn't very scientific, and I'd personally have a hard time telling the difference between ROT-13'd and IDEA-encrypted traffic, but if you can't see any cleartext, then it's probably working. HTH, damon -- Damon Muller | Did a large procession wave their torches Criminologist/Linux Geek | As my head fell in the basket, http://killfilter.com | And was everybody dancing on the casket... PGP (GnuPG): A136E829 | - TBMG, "Dead"
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