I am setting up ZBF for a remote office that has a single server that needs to be reachable via the Internet. So that I can get into the server remotely since it is on a standalone connection from our MPLS network, I have entered the following lines into the router config -
ip access-list extended ACL_RDP
permit tcp any host x.x.x.x eq 3389
class-map type inspect match-all RDP
match access-group name ACL_RDP
policy-map type inspect ccp-policy-ccp-cls--1
class type inspect RDP
When I type the class type line, I get an error %No specific protocol defined in class RDP for inspections all protocols will be inspected.
Is there a better way to do the allowing of RDP through the firewall ?
Is the error I listed anything to worry about ?