Access list a rule that filters a traffic going through a router interface. Unlike Standard Access List, Extended Access List permits or denies traffic based on source, destination, port, or service. You would normally apply Extended Access List on the router interface closest to the source device. Extended Access List uses numbers from 100 to…
Access List (ACL) is rule that filters a network traffic incoming to router interface or outgoing from a router interface. Each ACL’s rules tell the router which packets to discard, and which to permit. Standard Access list filters the traffic based on the source IP address or network and is normally applied close to the…
Static route is form of routing protocol used to route or link up different networks on a router. It’s a manual entry on the router configuration that sends traffic to specific network to a known route. All static routes must be be manually configured on all routers and it not account for link failure. To…
IGP – Interior Gateway Protocol is used to exchange routing information between multiple routers in Autonomous System (single organization network). It consists group of other routing protocols such as Open Shortest Path (OSPF), Routing Information Protocol (RIP), Intermediate System to Intermediate System (IS-IS), and Enhanced Interior Gateway Protocol (EIGRP). Type or class of routing protocols:…
Trace Route is command based tool that is widely used to trace the data path to the destination device. For example, to check the path from my router to spidertip.com. I would type trace rout spidertip.com and that would show me all the provider IP addresses from my router to the Spidertip.com host server. The…