RIP: This is a subject that has caught many lab candidates out over the years – Having been an avid but passive viewer on groupstudy I have read many stories of candidates glossing over this subject due to it’s “easiness” and getting caught cold. Of course messing up RIP does not just leave you without the RIP marks, it also affects your IGP score due to partial marking and also potentially affects later sections due to IGP reachability issues.
Anyhow, my notes, standard configuration would be…
router rip <- enable RIP
version 2 <- can be safely assumed
passive-interface default <- all interfaces passive
no passive-interface E0/0 <- activate RIP interface
network 188.8.131.52 <- network statement
no auto-summary <- support discontinuous nets
Verfication Commands include sh ip route rip [to see is routing updates being received], sh ip protocols | begin rip [to ensure RIP enabled, etc], if in trouble, debug ip rip, I also reviewed RIP authentication, two forms [plain text & MD5] with a standard configuration looking like this…
key chain RIP <- identifies the key chain
key 1 <- identifies the key number
key-string CISCO <- identifies the key string
ip rip authentication mode md5 <- specify MD5 authentication
ip rip authentication key-chain RIP <- apply authentication
Also looked at route filtering & some redistribution. I will touch on the latter two in the next few posts.
Final Note: RIP is listed on the SP Blueprint under the L2/L3 VPN section, not the IGP Section, therefore I think it’s safe to assume that that is where the context lies and large RIP questions may not be seen.