hi first of all this depends from where u want to block .
whether these are incoming connections on this ports on the outside interface which u want to permit.
whether they are outgoing connections on these ports. cause by default everything is permitted from the inside to the outside. to be more precise all connections are permitted from a higher security level to a lower security level.
for this i am sure u would have configured nat on the first .
then all u need is a access-list on in the inside interface.
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We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...