/etc/ppp/ioptions is in ipppd 1:3.25+dfsg1-3.3ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | # The debian configuration does not use this file.
# Please use isdnconfig to create /etc/isdn/ipppd.DEVICE .
# Read the isdnconfig manpage for more info.
|