Ubuntu
modemmanager package

  1. Bug #417389
  2. Comment #36

Comment 36 for bug 417389

Revision history for this message
Darren Albers (dalbers) wrote :

I have this same option but if I tail /var/log/messages I see that it doesn't seem to think that a DNS server was passed back. I suspect that maybe the issue is with PPPD and not NetworkManager?

From my logs when it works:
Nov 2 10:18:01 gv00002346181 pppd[3487]: Plugin /usr/lib/pppd/2.4.4/nm-pppd-plugin.so loaded.
Nov 2 10:18:01 gv00002346181 pppd[3487]: pppd 2.4.5 started by root, uid 0
Nov 2 10:18:01 gv00002346181 pppd[3487]: Using interface ppp0
Nov 2 10:18:01 gv00002346181 pppd[3487]: Connect: ppp0 <--> /dev/ttyUSB2
Nov 2 10:18:01 gv00002346181 pppd[3487]: CHAP authentication succeeded
Nov 2 10:18:01 gv00002346181 pppd[3487]: CHAP authentication succeeded
Nov 2 10:18:10 gv00002346181 pppd[3487]: Could not determine remote IP address: defaulting to 10.64.64.64
Nov 2 10:18:10 gv00002346181 pppd[3487]: local IP address 32.179.119.36
Nov 2 10:18:10 gv00002346181 pppd[3487]: remote IP address 10.64.64.64
Nov 2 10:18:10 gv00002346181 pppd[3487]: primary DNS address 209.183.35.23
Nov 2 10:18:10 gv00002346181 pppd[3487]: secondary DNS address 209.183.33.23

This is what I see when it fails:
Nov 2 12:00:04 gv00002346181 pppd[3748]: Plugin /usr/lib/pppd/2.4.4/nm-pppd-plugin.so loaded.
Nov 2 12:00:04 gv00002346181 pppd[3748]: pppd 2.4.5 started by root, uid 0
Nov 2 12:00:04 gv00002346181 pppd[3748]: Using interface ppp0
Nov 2 12:00:04 gv00002346181 pppd[3748]: Connect: ppp0 <--> /dev/ttyUSB5
Nov 2 12:00:04 gv00002346181 NetworkManager: SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Nov 2 12:00:04 gv00002346181 NetworkManager: SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found.
Nov 2 12:00:04 gv00002346181 pppd[3748]: CHAP authentication succeeded
Nov 2 12:00:04 gv00002346181 pppd[3748]: CHAP authentication succeeded
Nov 2 12:00:12 gv00002346181 pppd[3748]: Could not determine remote IP address: defaulting to 10.64.64.64
Nov 2 12:00:12 gv00002346181 pppd[3748]: Cannot determine ethernet address for proxy ARP
Nov 2 12:00:12 gv00002346181 pppd[3748]: local IP address 32.179.27.166
Nov 2 12:00:12 gv00002346181 pppd[3748]: remote IP address 10.64.64.64

When I manually set a DNS server in Network Manager it always works.

Thanks!