On Thursday 18 April 2002 12:16 pm, Jeff Murray wrote: > I am trying to tunnel protocols through SSH. I can successfully create and > use a tunnel with this configuration: > > Int Machine ---NAT---> Firewall ----> DMZ Server > > However whenever I try to tunnel to a machine that is behind another > firewall and layer of NAT I get timeout errors. > > Int Machine ---NAT---> Firewall ----Internet----> Firewall ---NAT---> > Server > > I am able to SSH to the server through both firewalls and it appears as > though the tunnel has been created (e.g. SSH -L 21:xxx.xxx.xxx.xxx:21 > [EMAIL PROTECTED] connects and gives me ssh access). However, whatever > protocol (FTP localhost in the example above) I try to tunnel times out. I > am using the same commands in both scenarios. Why would the first scenario > work and the second not work? Any suggestions? > > Jeff times out as in you can connect for a while then you disconnect? or you can't even make a connection?
if it works for a little while and dies, it's prolly some misconfiguration on the firewall going around killing active tcp connenctions (i've seen that happen before), if you can't even make a connection make sure the remote host(s) allow ssh port forwarding
