That antenna would surely be in the deep deep overkill zone for physical size and cost, but it's nice for my application (wave height sensor on an in-water buoy). On the other hand, it's 8dBi gain is awesome for a "permanently" installed station.
The lesson here is go to digikey.com (or Mouse, Newark, etc., etc.) and begin searching for parts based on what YOU need.
@steve-burk I like Steve's suggestion for your own problem as it will absolutely work, but in the hope of making things needlessly complex, this is what I'd do:
Create a shell script that is comprised of the commands you need to provision the route.
In your installation script (you have one, don't you? ;^), check rc.local for a reference to the script. Insert a call to rc.local if it's not in there.
Also in your install script, copy the route provisioning script to somewhere sensible, such as /usr/bin/. This directory is in the path and need not be "spelled out" in rc.local.
Perhaps you could write a script that takes routes as a command line parameter. As such you could easily call the command multiple times from rc.local to configure multiple routes or perhaps better yet, pass along not a route but a config file path that contains the routes you desire. If the latter, you just mod the route config file and reboot - voila!
If you're dabbling, this suggestion is overkill. If you're trending toward production, this is a bit more important and ought to be considered. Your mileage may vary.