Hi,
I'm trying to use ssh and pppd to set up a ppp tunnel between my
laptop at home and a machine at work. Both machines are running a
2.6.11 kernel, slackware 10.[01] and have pppd 2.4.3 installed. I
more or less followed the instructions in the ppp-ssh howto, which
essentially runs the following command as root:
/usr/sbin/pppd ktune noauth updetach passive pty
"${REMOTE_COMMAND}" ipparam vpn ${CLIENT_IFIPADDR}:${SERVER_IFIPADDR}
where
REMOTE_COMMAND=ssh -l ${SERVER_USERNAME} ${SERVER_HOSTNAME} \
sudo /usr/sbin/pppd ktune noauth nodetach notty proxyarp ipparam vpn
where ${SERVER_USERNAME} has sudo privilages on ${SERVER_HOSTNAME}.
and where ${CLIENT_IFIPADDR} is the IP address my laptop has when it's
connected at work and where ${SERVER_IFIPADDR} is the IP address of
the server 132.206.205.86 and 132.206.205.91, respectively.
ifconfig shows:
ppp0 Link encap:Point-to-Point Protocol
inet addr:132.206.205.86 P-t-P:132.206.205.91 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:4 errors:0 dropped:0 overruns:0 frame:0
TX packets:21 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:62 (62.0 b) TX bytes:4590 (4.4 Kb)
on the client and
ppp0 Link encap:Point-to-Point Protocol
inet addr:132.206.205.91 P-t-P:132.206.205.86 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:4 errors:0 dropped:0 overruns:0 frame:0
TX packets:49 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:62 (62.0 b) TX bytes:4302 (4.2 Kb)
on the server.
pppd has created route entries:
132.206.205.86 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
on the server
and
132.206.205.91 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
on the client
If I ping 132.206.205.86 from the client I get a response, but if I
ping the server (132.206.205.91) I get nothing.
Similarly, pinging the client from the server doesn't get a reply.
Finally, the connection times out.
My suspicion is that I'm close, but am making some sort of trivial
mistake. Any ideas?
David
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