*BSD News Article 79857


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From: jmrueda@diatel.upm.es (Javier Martin Rueda )
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Please Help with setup of user PPP
Date: 3 Oct 1996 14:57:41 GMT
Organization: Dpt. Ing. Telematica
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> dynamic IP negotiation was succesful.  However, when I attampt to execute telnet, rlogin, ping 
> or any other network dependent command, nothing happens.  I also get disconnected due to idle 

That happens when you are already connected to your ISP? Or you mean you
telnet while not connected, but the modem does not dial?

Check network routing (netstat -rn). The default entry should point towards
your ISP.

Use traceroute. Maybe it shows some problem somewhere.

Also, you may use tcpdump to ensure that packets are passing through
the intended interface (tun0).

Check the ppp filters. Maybe they don't allow your packets to go out.
In case of doubt, try erasing all current filters from
/etc/ppp/ppp.conf, and putting just:

set ifilter permit 0/0 0/0
set ofilter permit 0/0 0/0
set dfilter permit 0/0 0/0
set afilter permit 0/0 0/0

Note: maybe it's "allow", instead of "permit". I don't remember exactly.