what is the minimum number of interfaces required for a router?

Niket Gangwar @niket151194
2 Nov 2017 05:17 am

Minimum might be 1.
If for example there is a router which is just acting as a boundary to network and not forwarding any packets to other network then in that case minimum of 1 interface is required for a router.

For ex:

A------B------C-------D-------E------ so on... 

here for A only ONE interface is required as only connected to one N/W.