You can change the LDP route injection filter without deleting a previously configured one. The change automatically applies and triggers LDP route re-injections.
Any change to a referenced prefix list automatically applies to LDP route injection filtering and triggers LDP route re-injection.
When no LDP route injection filter is configured, by default, LDP acquires all local loopback addresses.
When the prefix list referenced by the LDP route injection filter is not configured, it is an implicit deny. All local routes are denied.
The LDP route injection filter is only applied on local route injection. Learned remote binding is not filtered.
