This file is indexed.

/usr/share/isdn/default/ipppd.DEVICE 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.

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# Options file for ipppd.
# ipppd will not read /etc/ppp/options or /etc/ppp/ioptions or any other
# config file. Everything has to be in here.

# REMOVE the next line once configuration is complete #########################
# Warning! not configured yet!
# REMOVE the above line once configuration is complete ########################

# "peer" is the name for our syncppp partner.

# STANDARD OPTIONS

#debug			# enable debugging
#kdebug X		# set kernel debugging level to X
#nodetach		# (no) fork to the background
#callback X		# ask for callback (parameter X ?)
#lock			# create a lock file for device
#domain X		# add domain X to a given hostname
#pidfile X		# save pid in file X
#call X			# take options from privileges file (???)
#idle X			# idle time limit (seconds)
#holdoff X		# holdoff time limit (seconds)
#maxconnect X		# set maximum connection time (in seconds ?)
#+mp			# enable multi line ppp
#+pwlog			# log password (WARNING: possible security hole)
#nomagic		# magic number negotiation

# ppp handshake : tuning

#silent			# don't even try to initiate the connection
#passive		# wait for the peer to initiate the connection
#lcp-echo-failure X	# consecutive echo failures
#lcp-echo-interval X	# time for lcp echo events
lcp-restart 1		# Set timeout for LCP
#lcp-max-terminate X	# Set max #xmits for term-reqs
#lcp-max-configure X	# Set max #xmits for conf-reqs
#lcp-max-failure X 	# Set max #conf-naks for LCP


# AUTHENTICATION

name X			# set local name for auth XXX_
#user X			# set name for auth with peer; default is value for name
#usehostname		# use hostname for auth
#remotename X		# set remote name for auth
#noauth			# (dont) require peer (the other) to auth
#require-pap		# allow only pap authentication (dialin only)
#require-chap		# allow only chap authentication (dialin only)
#login			# use system password database for pap
#papcrypt		# pap passwords are encrypted

# AUTHENTICATION TUNING
#pap-restart X		# Set retransmit timeout for PAP
#pap-max-authreq X	# Set max #xmits for auth-reqs
#pap-timeout X		# Set time limit for peer PAP auth.
#chap-restart X 	# Set timeout for CHAP
#chap-max-challenge X 	# Set max #xmits for challenge
#chap-interval X 	# Set interval for rechallenge

# COMPRESSION

#noaccomp		# address compression on/off
#nopcomp		# protocol field compression on/off
#novj			# van jacobsen compression on/off
#novjccomp		# van jacobsen connection-ID compression on/off
#vj-max-slots X		# tune maximum vj header slots
#nobsdcomp		# bsd compression on/off
#nodeflate		# deflate compression on/off
#nopredictor1		# predictor1 compression in/off
noccp			# compression negotation on/off
nolzs			# LZS compression off (not yet supported fully)


# IP NETWORKING

#noip			# (do not) disable ip transfer
#X:Y			# (do not) set local ip to X, remote ip to Y
noipdefault		#  do not  use name for default ip addr
#useifip		# (do)     use ip addresses from interface
#usefirstip		# (do)     use first ip from auth file for remote
netmask 255.255.255.255	#  do      set netmask, 255.255.255.255 for pointopoint
#defaultroute 		# (do not) set default route (for Debian config, don't uncomment)
nohostroute		#  do not  set host route
#proxyarp		# (do not) set an proxy arp entry
mru 1524		#  do      set maximum size of receive units to X
#default-mru		# (do not) enable mru negotation
mtu 1500		#  do      set max size of transmit units (1500 is OK)
#useifmtu		# (do not) use mtu from interface
#ipparam X		# (do not) set ip parameters in script X
#ms-dns X		# (do not) set dns addr for the peers use (dialin only)
#ms-wins X		# (do not) wins address for the peers use (dialin only)
#ms-get-dns		# (do not) accept peers suggestion of dns addr (dialout)
#set_userip 		# (do not) define valid ip addrs in /etc/ppp/useriptab


#ipcp-restart X		# Set timeout for IPCP
#ipcp-max-terminate X	# Set max #xmits for term-reqs
#ipcp-max-configure X	# Set max #xmits for conf-reqs
#ipcp-max-failure X	# Set max #conf-naks for IPCP
ipcp-accept-local	# Accept peer's address for us
ipcp-accept-remote	# Accept peer's address for it

# IPX NETWORKING

#noipx			# en/disable ipx
#ipx-network X 		# IPX network number
#ipxcp-accept-network	#  Accept peer netowrk
#ipx-node X 		# IPX node number
#ipxcp-accept-local	# Accept our address
#ipxcp-accept-remote	# Accept peer's address
#ipx-routing X		# IPX routing proto number
#ipx-router-name X	# IPX router name
#ipxcp-restart X 	# Set timeout for IPXCP
#ipxcp-max-terminate X	# max #xmits for term-reqs
#ipxcp-max-configure X	# max #xmits for conf-reqs
#ipxcp-max-failure X	# max #conf-naks for IPXCP