[c-nsp] Blocking IS-IS traffic

[Ulysses Maciel da Costa]

Hi,


I have a vlan in my router's switchport, and I receive a link from other
company. Last week my network goes down. I analyze my network and saw a lot
of IS-IS packets. By the way, my routes inside this vlan are static. I've
tried to create an ACL inside my vlan to block these IS-IS packets attached
with his ports(2042,2043), without success.

 

Someone could help me to do an efficient ACL to block this traffic?