firstly im learning eigrp basic on the ccna, but there is a few question which i need to clarify, based on my understanding on eigrp on ccna level . Eigrp is hybrid distance vector protocol that uses reliable transport protocol that do not uses tcp or udp and ip routing during the communication of EIGRP neighbor.

Note: Default Route Set for EIGRP, But It configure in Configuration Mode. 3. In order to meet security standards. EIGRP should not form Neighbor Relationship on any interface where other EIGRP routers do not exist. BB (Config)# router eigrp 90 . BB (config-router)# passive-interfac default . BB (config-router)# no passive-interface serial 4/0

show ip eigrp topology -shows Only Successors and Feasible Successors to a destination. show ip eigrp topology All-links shows all routes. Note: EIGRP Topology table view is not really "true view" of the whole topology for AS area; from a router perspective, topology is build based on what my connected neighbors report to me and my cost to them.

Hi Folks, Here i'm posting challenge labs which are given in CCNP_ROUTE_LAB_MANUAL v6. Lab topologies are attached.

Hi! When I studied in Netacad, my instructor mentioned I could use the subnet mask in the EIGRP configurations (network command), but generally we must use the wildcard mask, then, my suggestion you use the wildcard mask without worry by this details, because it is more used, even if both configurations are correct.

EIGRP - EIGRP is known for its faster convergence. So its used in realtime, where they require immediate switchover, if network fails. But, its a cisco proprietary protocol, so it can only used in cisco devices. OSPF - Open standard protocol. So, it supports all vendors. But, its a complex protocol to configure and troubleshoot than EIGRP

Within CCNA scope, you can change EIGRP metric using K-values , bandwidth and delay. By default you have K1 = K3 = 1. Cisco doesn't recommend changing other values, including K2,K4,K5, because they can cause route flapping as these the values change based on the usages of the link, but you can still change K1 and K3 to values other than 1 ...

EIGRP is used mainly in Cisco only environments but even that is getting few and far between. You can redistribute from EIGRP to other protocols but many prefer one protocal . Cisco said they made EIGRP open standard but I think that may be too late as OSPF is now globally adopted.

NOT work, as expected. Even with a K2 set to 255, the interface dynamic load is not reflected in the EIGRP topology table, so setting K2 does not change anything. Topology: Setting K2: Loading an interface: (pinging 10.11.3.1 from SW2 with SW2 <-> WAN1 link shutdown) Checking the EIGRP topology table: (even after a 10 mn wait)

Once EIGRP knows which interfaces (and their respective networks) are involved in the local EIGRP processs, then the auto-summary feature will control whether we advertise the longer than default length networks.