for junos, i build the prefix list externally and push config. sad to say, the code is so old ('90s) that it's pearl and uses `peval`. i should fix but (copious spare time) == 0.
originally i tried to also build and push for cisco ios classic, but it died in the push. breathe on the router and it reset bgp sessions. i gather from heas that things are better these years. i guess i really should have a go at doing it for arcos, but ... > It's all open source, available at > https://github.com/wolcomm/eos-prefix-list-agent very cool. randy