If I am reading this right you are running the POP server off a macintosh? Mac's don't use telnet so it would depend on wether the POP program would respond to a telnet request. Also, your rules have to allow the POP server to send a response back into your network. Maybe you already have that set up but didn't post it. Ipchains won't act as a proxy. It couldn't forward the port then send back the responce to the initiating internal computer. It doesn't keep track of connections. It would foreward the port to the POP server then consider whatever the POP server sends back as a new connection having nothing to do with the request made by the internal computer. I don't know much about telnet so maybe I'm wrong about a response. Why don't you just try to get mail? That would be a pretty good test. : ) sim "Austad, Jay" wrote: > >telnet 192.168.0.105 110 > > shouldn't that be 192.168.1.105, not 0.105? > > -----Original Message----- > From: A J [mailto:incsdirect at yahoo.com] > Sent: Tuesday, April 03, 2001 8:30 PM > To: tclug-list at mn-linux.org > Subject: [TCLUG] RE: PORT FORWARING > > Hi there, > > I'm trying to get the LAN reading the POP mail from an > external machine via port forwarding, but have no luck so > far. > > My Linux RHL7 has 2 network adapters 203.101.33.177 (eth1) > extrenal and 192.168.1.105 (eth0) internal > > Users on LAN have their workstations on 192.168.1.* network > number. > > The POP server itselft where users have their acounts gets > all mail downloaded to it is on MAC and is on 203.101.33.9 > > All I need is to make users from 192.168.1.* to connect to > 192.168.1.105 (Linux box internal address) and then to make > linux to forward connection to 203.101.33.9 (Mac POP Server) > so it's some sort of proxy. > > I have tried this on Linux BOX > > ipmasqadm portfw -a -P tcp -L 192.168.1.105 110 -R > 203.101.33.9 110 > > then I to telnet from my LAN > > telnet 192.168.0.105 110 > > and I expect to have response from MAC POP server > > But it says 'Unable to connect to host" > > > > What am I doing wrong? Is there any other solutions to this? > > Thank you very much in advance > > Arthur > > > > > > > > ------------------------------------------------------------- > Do You Yahoo!? > Yahoo! Mail Personal Address - Get email at your own domain > with Yahoo! Mail. > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://shadowknight.real-time.com/pipermail/tclug-list/attachments/20010404/1b9617b4/attachment.html