The numerical suffix, in this case, "172," denotes its place in the studio's chronological release library. Core Themes
Like many entries in the 100s range of this series, PPPD-172 typically follows a narrative or "image" format. This often involves: pppd-172
You might want to add pppd commands to a script to automate connection establishment. The numerical suffix, in this case, "172," denotes