Ubuntu
ppp package

updetach option gives modem hangup

Bug #776193 reported by Robert Browne
18
This bug affects 4 people
Affects Status Importance Assigned to Milestone
ppp (Debian)
Fix Released
Unknown
ppp (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

Binary package hint: ppp

When using pppd with updetach option
When connected a new pppd process starts
Script ip-up runs
Modem hangup
pppd exits

removing updetach option it works
with only one pppd process that stays connected.

Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in ppp (Ubuntu):
status: New → Confirmed
Revision history for this message
Rafal Dabrowa (rdabrowa) wrote :

How to repeat the problem: assume we can connect to a provider using "sudo pppd call xyz" command, i.e. we have a script /etc/ppp/peers/xyz for connect.

Add "updetach" option to the script. Next, invoke:

    sudo pppd call xyz

The connection hangs up immediately after finish of the above "sudo" command. On the other hand, if you invoke:
    sudo bash
    pppd call xyz

the modem does not hang up.
Reason: call of setsid() function added by always_setsid patch. More info I wrote in Debian bug tracking system.

Bug Watch Updater (bug-watch-updater)
Changed in ppp (Debian):
status: Unknown → New
Bug Watch Updater (bug-watch-updater)
Changed in ppp (Debian):
status: New → Fix Released
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