our customer has a router 2800 in a branch site , they need to configure the router as a firewall and IPS.
This router is working properly and all the users connect to their applications in the main site through it. If i start to configure the router to be a firewall , is this affecting on the router ???
In other words is this affecting on the routing table of the router ??
If i configure the router to be firewall & IPS during working hours , will this affect on the network or not ???