Linux PPP dial-in server.

[nikhil]

Hi,

Can anyone point to some documentation or provide step by step instructions to configure a Linux dial-in PPP server without pap/chap authentication, just a simple basic server.

Thanks,
Nikhil

[Dolda2000]

pppd operates at both ends of a PPP connection, so checking the docs for pppd should tell you a lot, if not all. I think tldp has a HOWTO on it as well.

[nikhil]

Hi,

I have configured a basic ppp server with pap authentication,
my /etc/mgetty+sendfax/login.config
has the following entry:
/AutoPPP/ - a_ppp /usr/sbin/pppd -chap +pap login debug

my /etc/ppp/options file has the following entry:
-detach
asyncmap 0
proxyarp
lock
debug
crtscts
defaultroute
modem

When I dial into the server through DUN, I get a screen that prompts me for my username/password, upon entering it, i get the following in the error logs:

Aug 5 12:30:19 dialogic login -- pppuser[3831]: DIALUP AT ttyS0 BY pppuser
Aug 5 12:30:19 dialogic login -- pppuser[3831]: LOGIN ON ttyS0 BY pppuser
Aug 5 12:30:19 dialogic pppd[3838]: pppd 2.4.1 started by pppuser, uid 351
Aug 5 12:30:19 dialogic pppd[3838]: Using interface ppp0
Aug 5 12:30:19 dialogic pppd[3838]: Connect: ppp0 <--> /dev/ttyS0
Aug 5 12:30:52 dialogic pppd[3838]: IPCP: timeout sending Config-Requests
Aug 5 12:30:52 dialogic pppd[3838]: Hangup (SIGHUP)
Aug 5 12:30:52 dialogic pppd[3838]: Modem hangup
Aug 5 12:30:52 dialogic pppd[3838]: Connection terminated.
Aug 5 12:30:52 dialogic pppd[3838]: Connect time 0.6 minutes.
Aug 5 12:30:52 dialogic pppd[3838]: Sent 175 bytes, received 0 bytes.
Aug 5 12:30:52 dialogic pppd[3838]: Exit.

Apparently IPCP messages are not getting routed properly, any one has any ideas of whats going on??
any help is appreciated.

thanks
Nik

[Dolda2000]

I really don't know much about PPP; luckily, I've been able to stay away from it. However, the fact that pppd is receiving a SIGHUP makes me think that the modem hangs up by itself. Can you check on that?