Does EIGRP use AS number/process number as it's PORT NUMBER between routers in the same AS/g...

analysis

The question “Does EIGRP use AS number/process number as its port number between routers in the same network?” is an interesting one and has generated a lot of discussion on the Network Engineering Stack Exchange. The answer is “no”, EIGRP does not use an AS number/process number as its port number between routers in the same network.

To understand why this is the case, we first need to understand what an AS number/process number is and how it is used. An Autonomous System (AS) number is a unique identifier assigned to an organization or ISP that is used to identify its networks and devices. The AS number is typically used in routing protocols such as BGP, and is used to determine which routes should be used to reach specific networks.

A process number is a unique identifier assigned to a router or other network device. Process numbers are typically used in interior routing protocols such as EIGRP, and are used to identify individual devices within a network. Process numbers are also used to determine which routes should be used to reach specific networks.

So why doesn’t EIGRP use an AS number/process number as its port number between routers in the same network? The reason is that EIGRP is an interior routing protocol, and its main purpose is to exchange routing information between routers within a single organization’s network. As such, EIGRP does not need to use an AS number/process number as a port number between routers in the same network.

Instead, EIGRP uses a variety of other types of information to identify and communicate with routers. This information includes the router’s IP address, the router’s process ID, and the router’s EIGRP hello packets. By using this information, EIGRP is able to determine which routes should be used to reach specific networks.

It is important to note that EIGRP does use AS numbers/process numbers as its port number between routers in different networks. This is because EIGRP needs to communicate with routers in other organizations’ networks in order to exchange routing information. In this case, EIGRP uses the AS number/process number as its port number to identify the routers it is communicating with.

In conclusion, the answer to the question “Does EIGRP use AS number/process number as its port number between routers in the same network?” is “no”. EIGRP does not use an AS number/process number as its port number between routers in the same network because it does not need to. Instead, EIGRP uses a variety of other types of information to identify and communicate with routers within a single organization’s network. However, EIGRP does use AS numbers/process numbers as its port number between routers in different networks.

Inquire Now

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Find your next full or part-time role here

ScaleDesk can either help you find your next full time gig or a part time side gig where you can create extra income!

Onboard with us once
Skip HR screening and go to the final interview with with only your resume and a video interview you never have to redo
Get paid electronically every month for the hours you work
We will be your reference even if you work for us once

IT Teams: Use ScaleDesk to augment your team

Schedule Demo