Currently doing OSPF labs based on Narbik’s workbook:
OSPF:
Lab 1 (optimization):
- turning off LSA type 6
- go under router ospf –> ignore lsa mospf
- changing hello timers such that it sends 4 hellos per second with hold time of one second
- under interface –> ip ospf dead-interval minimal hello-mult 4
- configuring ospf to display router id in it’s ospf show commands
- global: ip ospf name
- ip host <R1> <1.1.1.1>
- router ospf 1 –> timers pacing retransmission 60 (interpacket pacing b/w consecutive LSUs)
Lab 2 (auth):
- creating virtual link, “area <area to create vl over> virtual-link <routerid of other router>”
- configuring area auth:
- area X authenticaton <message-digest>
- int
- ip ospf message-digest key 1 md5 cisco12
Lab 3 (cost):
- cost of loopback is cost of serial + cost of lo = 100,000,000/1.54MB (64) + 100MB/8000MB = 1
