EIGRP routing protocol

Triangle Topology Of Three Eigrp Routers With Active Point-To-Point Links Between Them And A Muted, Passive Interface Connecting Each To Its Own Lan
CCNA

How to Configure EIGRP Passive-Interface

A passive interface is a feature used across routing protocols that stops routing updates from being sent and received on a specific interface, though the exact mechanics vary from one protocol to another. In EIGRP specifically, configuring the passive-interface command stops the router from sending outgoing hello packets on that interface. Because EIGRP neighbor adjacencies...

Muhammad Khattak 10 min read
Three-Tier Priority Diagram Showing Eigrp Router Id Selection Order: Manual Configuration First, Then Highest Loopback Interface Ip, Then Highest Physical Interface Ip
CCNA

EIGRP Router ID: Selection Rules and Configuration

An EIGRP router ID is a 32-bit unique identifier assigned to each router in the EIGRP domain, represented in the same dotted-decimal format as an IPv4 address. This guide covers exactly how EIGRP selects a router ID automatically, how to configure one manually, a genuinely useful “sticky” behavior that catches people off guard when they...

Muhammad Khattak 8 min read
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