/usr/share/grc/conf.traceroute is in grc 1.4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | # hostname
regexp=\s\w+[\w\-\.]+\w+
colours=bold yellow
count=once
-
# ip number
regexp=\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}
colours=magenta
-
# ipv6 number
regexp=(([0-9a-fA-F]{1,4})?\:\:?[0-9a-fA-F]{1,4})+
colours=magenta
-
# time
regexp=\d+\.?\d*(?=\sms)
colours=green
-
# ms
regexp=\bms\b
colours=yellow
-
# DUP
regexp=\bDUP
colours=red
-
# !S, !A, !H (host unreachable), etc.
regexp=\b\![AFGNPSTU]
colours=red
# just an example:
#command=echo 'Network is down'| mail root
-
# ttl=...!
regexp=ttl=\d+\!
colours=cyan
-
# *
regexp=\*
colours=red
-
# parenthesis
regexp=\(|\)
colours=yellow
|