Prefix list creator & tester
Test which entry of a BGP prefix list a route hits, find entries that can never match, or turn a list of prefixes into prefix-list config with the right ge/le.
Prefix list
Cisco IOS / NX-OS / Arista / FRR syntax: ip prefix-list NAME [seq N] permit|deny A.B.C.D/L [ge X] [le Y]. Several lists can be pasted together.
Test routes
| Route | Result | Entry |
|---|
Anything no entry matches is denied (the implicit deny at the end of every list).
Entries
| Seq | Action | Matches |
|---|
Create a prefix list
Insert