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Proper LDP Filters

Tue Feb 21, 2023 5:42 am

If I were going to use dual-stack LDP on RouterOS v7.6/7.7, where I only wanted a v4 and a v6 loopback address on each router to be label switched, would I need both a 0.0.0.0/0 and ::/0 "non-advertised" entry to filter both IPv4 and IPv6 prefixes that weren't loopbacks? For example:

add accept=yes disabled=no prefix=10.x.x.0/24
add accept=yes disabled=no prefix=2zzz:xxxx:yyyy:www::/64
add accept=no disabled=no prefix=0.0.0.0/0
add accept=no disabled=no prefix=::/0

Where all my routers' IPv4 loopback were in the 10.x.x.0/24 subnet and all my routers' IPv6 loopbacks were in the 2zzz:xxxx:yyyy:www::/64 subnet.
Asked differently, do I need the specific v4 and v6 formatted "all addresses" for the non-advertised address match or can I just use one or the other?

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