Tài liệu IRGP, EIGRP and RIP ppt

RIP, EIGRP & IGRP Key Commands Shows and Debugs Router rip Network A.B.C.D Default information originate Redistribute igrp metric 3 Passive-interface serial 0 Neighbor A.B.C.D Router igrp 100 Network A.B.C.D Redistribute rip metric 1544 10 255 1 1500 Passive-interface ethernet 0 Neighbor A.B.C.D ! ip default-network A.B.C.D Router eigrp 100 Network A.B.C.D Redistribute rip metric 1544 10 255 1 1500 NO AUTO-SUMMARY Show ip protocols Show ip eigrp neighbor Show ip eigrp topology Debug ip igrp transaction Debug ip igrp events Debug ip rip events EIGRP Authentication Interface serial 0 ip authentication mode eigrp 5 md5 ip authentication key-chain eigrp 5 MyChain ! key chain MyChain key 1 key-string keynumber1 key 2 key-string keynumber2 Additional Commands In IGRP: variance 2" would consider paths of x2 metric of equal path, so to load share. EIGRP summarization: Done on the interface: ip summary-address eigrp 100 10.1.0.0 255.255.0.0 On NBMA, turn off split-horizon: No ip split-horizon eigrp XX NOT No ip split-horizon <- does not work for eigrp Eigrp uses multicast address 224.0.0.10 on broadcast media On NBMA: ip split-horizon is disabled by default on ip physical interfaces, but NOT on point-to-point or point-to-multiploint interfaces. In those cases, make sure you do a "no ip split-horizon" on those interfaces at the hub only , AND put a distribution list on the spoke router not to listen for advertisements about the internal networks it covers. See check-list on Redistribution! Spot The Issue Notes The "default information originate" command in rip will inject a 0.0.0.0 route within the rip domain. This is especially inportant when redistributing from VLSM to FLSM and needing to reach all networks without configuring a static default route. When a static 0.0.0.0 route is defined on a router, rip will automatically redistribute it into the rip domain. Max hop count of 15 in rip, 100 for igrp. IGRP uses hop count for loop avoidance only. Uses metrics for route path decision. Default: metric = bandwidth + delay. Mutual redistribution between igrp and eigrp of the same automonous number is automatic • The "mtric X" parameter in redistribution is REQUIRED, otherwise RIP will drop the update since it doesn't know how to deal with it. • If the igrp or rip timer values need to be adjusted, this has to be done on EVERY router within that domain. Use "show ip protocols" to see the timer values • In IGRP, must use the "ip default-network A.B.C.D" to redistribute a default network into the igrp domain. This is required when redistributing VLSM into FLSN so that the FLSM subnets are accessible. • EIGRP automatically summarizes at the classful boundary. Make sure you turn off auto summary with "no auto-summary" . RIP, EIGRP & IGRP Key Commands Shows and Debugs Router rip Network A.B.C.D Default information originate. igrp events Debug ip rip events EIGRP Authentication Interface serial 0 ip authentication mode eigrp 5 md5 ip authentication key-chain eigrp 5 MyChain ! key