Cisco EIGRP

EIGRP är ett distance vector routing protokoll med en del karaktär av link state protocol. EIGRP använder ett eget protokoll på lager 4, Reliable Transport Protocol. För topologiuträkningar används DUAL.

Databaser

• Neighbor table
• Topology table
• Routing (Forwarding) table

Adjacency

• Hello packet - Multicast 224.0.0.10, every 5 seconds.
• AS nummer måste vara samma på alla routrar.

Konfiguration

router eigrp [ASN]

Manually set ID

eigrp router-id [ip-address]

Add networks to advertise

network [ip-address] [wildcard-mask]

Disable automatic route summarization (Default sedan IOS 15)

no auto-summary

Designate passive interfaces

passive-interface [interface]

Statically identify neighoring routers

neighbor [ip-address] [interface]

MD5 authentication

interface [interface]
ip authentication mode eigrp md5
ip authentication key-chain eigrp [ASN] [name-of-chain]

Summering

ip eigrp summary-address 192.168.0.0 255.255.0.0

Show

show ip eigrp neighbors 
show ip eigrp topology
show ip eigrp interfaces detail
show ip eigrp traffic
show ip protocols