OSPF question.

Do I need to know all the sub options ?
Cost , Priority is OK.

What about authentication ,hello ,dead intervals in IPv4 ?
And neighbor in IPv6 ?

Router(config-if)#ip ospf ?
authentication Enable authentication
authentication-key Authentication password (key)
cost Interface cost
dead-interval Interval after which a neighbor is declared dead
hello-interval Time between HELLO packets
message-digest-key Message digest authentication password (key)
priority Router priority

Router(config-if)#ipv6 ospf ?
<1-65535> Process ID
cost Interface cost
dead-interval Interval after which a neighbor is declared dead
hello-interval Time between HELLO packets
neighbor OSPF neighbor
priority Router priority

Find more posts tagged with

SAVE $250 on Your CISCO Boot Camp — Use Code "EXAM26"

Exclusively for TechExams members for Infosec Boot Camps starting before April 30, 2026

View CISCO Boot Camps

Comments

TallDude7

yes you have to know all of that. you have to troubleshoot why routers aren't establishing OSPF adjacencies from the OSPF commands and routing tables

satishtech

so authentication,authentication key, hello dead interval configuration in IPv4
and neighbor configuration command in IPv6 is part of ccent syllabus ?

why adjacencies are not formed that I know missmatch hello dead interval auth etc
so he only reason I need to know these commands is to enable matching so that
routers can become adjacent ?

TWX

If they're asking for these commands on CCNA then it's likely that companies change these intervals to speed-up convergence time.

By contrast, since Cisco isn't asking for EIGRP K-values on the exam, they don't find it all that likely that the junior admin will encouter K-value changes in the wild in EIGRP deployments.

james43026

Exam objectives can be located here. This should help clarify things.

satishtech

Those are the CCNA 200-120 objectives not ICND1 100-101 objectives.

bender_fender100

satishtech wrote: »

Those are the CCNA 200-120 objectives not ICND1 100-101 objectives.

OSPF is also covered in the ICND1 objectives as well. They included some of it as an objective in there, all about single area OSPF.

james43026

satishtech wrote: »

Those are the CCNA 200-120 objectives not ICND1 100-101 objectives.

Well the question wasn't directed at a particular exam. And the CCNA objectives are the same regardless of taking one exam VS two.

gorebrush

What does it say on the relevant blueprint?

satishtech

Thank You everyone.