How do I authenticate EIGRP?

How do I authenticate EIGRP?

To configure MD5 authentication for EIGRP, complete the following steps:

1. Step 1 Enter configuration mode for the interface on which you want to enable authentication.
2. Step 2 Specify MD5 authentication for EIGRP packets using the ip authentication mode eigrp autonomous-system md5 interface configuration command.

Which authentication methods are EIGRP uses?

The type of authentication that EIGRP supports is MD5 authentication. MD5 authentication adds keyed information into each EIGRP packet that is sent. The receiving router uses the keyed information to confirm that the source of the packet is really who they say they are.

When configuring EIGRP What does configuring authentication do?

How to enable EIGRP authentication. EIGRP authentication supports MD5. If enabled, routers authenticates the source of each routing update packet that they receive.

What is the advantage of providing EIGRP authentication at the interface level?

EIGRP provides benefits like fast convergence, incremental updates and support for multiple network layer protocols. EIGRP only supports Message Digest 5 (MD5) authentication to prevent malicious and incorrect routing information from being introduced into the routing table of a router.

What is true EIGRP?

Explanation: EIGRP stands for Enhanced Interior Gateway Routing Protocol is a routing protocol designed by Cisco. It is available only on Cisco routers. Explanation: EIGRP metric is K-values which are integers from 0 to 128. They are used to calculate the overall EIGRP cost with bandwidth and delay metrics.

Which protocol does EIGRP send hello packets?

-EIGRP uses UDP to send all update packets. -EIGRP sends all update packets via multicast.

Which authentication methods does EIGRP support Choose 2?

EIGRP supports SHA authentication since IOS 15.1(2)S and 15.2(1)T. SHA authentication is more secure than MD5 so if possible, use this. MD5 authentication can be configured in classic or named mode.

What are the EIGRP message?

EIGRP uses Five different messages to communicate with its neighbor routers. EIGRP messages are Hello, Update, Query, Reply, and Acknowledgement. EIGRP routing information exchanged to a router from another router within the same autonomous system has a default administrative distance of 90.

How does EIGRP do load balancing?

Configure Load Balancing on Cisco EIGRP using Unequal Routes

1. Examine the current best route to the destination. On the originating router, use command show ip route [destination IP] to show the best route to reach the destination IP.
2. Identify EIGRP Feasible Successor (FS) routes.
3. Configure the variance value.

How does EIGRP select best path?

By default EIGRP uses bandwidth and delay of the line to determine the best path to a remote network. However, if desired, EIGRP can use a composite of four metrics: bandwidth, delay, reliability, and load.

What are the different types of EIGRP packets?

EIGRP sends out five different types of packets—hello, update, query, reply, and acknowledge (ACK)—that are used to establish the initial adjacency between neighbors and to keep the topology and routing tables current.