Info from ISP:
IP: 123.123.123.123
Mask: 255.255.255.0
Gateway 123.123.123.1

My ppp.conf looks like this

default:
  set log Phase tun command
  set ifaddr 123.123.123.123 123.123.123.1 255.255.255.0

pppoe:
  set device PPPoE:vr1
  set dial
  set login
  add default HISADDR

I dont need Username and password to connect.

When i want to use the Internet, i type ppp -ddial pppoe, but for some reason it never gets trough. Ifconfig shows
tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500
Opened by PID 1121

My ppp.log shows
Mar 26 15:31:16 firewall ppp[1121]: tun0: Phase: deflink: Connected!
Mar 26 15:31:16 firewall ppp[1121]: tun0: Phase: deflink: opening -> dial
Mar 26 15:31:16 firewall ppp[1121]: tun0: Phase: deflink: dial -> carrier
Mar 26 15:31:21 firewall ppp[1121]: tun0: Phase: deflink: Disconnected!
Mar 26 15:31:21 firewall ppp[1121]: tun0: Phase: deflink: carrier -> hangup
Mar 26 15:31:21 firewall ppp[1121]: tun0: Phase: deflink: Connect time: 5 secs: 0 octets in, 0 octets out
Mar 26 15:31:21 firewall ppp[1121]: tun0: Phase: deflink: 0 packets in, 0 packets out
Mar 26 15:31:21 firewall ppp[1121]: tun0: Phase:  total 0 bytes/sec, peak 0 bytes/sec on Mon Mar 26 15:31:16 2007
Mar 26 15:31:21 firewall ppp[1121]: tun0: Phase: deflink: hangup -> opening
Mar 26 15:31:21 firewall ppp[1121]: tun0: Phase: deflink: Enter pause (30) for redialing.