Section of finding out for CCNA exam good results is preserving all of these new commands straight as part of your head! And Permit’s face it, There are tons of commands you need to know to be able to pass the CCNA Examination and make that certification. In this article’s an evaluation of some vital distance vector and static routing instructions you need to know, in conjunction with their right use and console output.
Bandwidth
IGRP helps make a default assumption that any Serial interface running IGRP is connected to a T1 line, which runs at 1544 KBPS. With equivalent-Price load-balancing enabled by default, This can be an undesirable assumption.
To alter IGRPs assumption, utilize the bandwidth command about the serial interface in query. Observe that this command would not in fact have an affect on the bandwidth accessible to the interface; it simply improvements IGRPs assumption on the bandwidth.
R2#conf t
R2(config)#int s0
R2(config-if)#bandwidth 512
Clear ip route *
This command clears your routing table of all non-static and non-related routes. Inside of a lab environment, its quite useful because it forces your routers functioning routing protocols to deliver and request updates, as an alternative to looking ahead to the frequently scheduled updates.
R2#apparent ip route *
Debug ip igrp activities
Debug ip igrp events permits you to see IGRP updates getting sent and asked for. In this article, the debug is run and then the routing desk is cleared. The router 안전놀이터 immediately broadcasts update requests via the IGRP-enabled interfaces.
R2#debug ip igrp party
IGRP function debugging is on
06:02:fifty one: IGRP: broadcasting request on BRI0
06:02:fifty one: IGRP: broadcasting request on Serial0.123
Debug ip igrp transactions
To configure IGRP unequal-cost load-sharing With all the variance command, youve obtained to be aware of the metric on the considerably less-fascinating routes. EIGRP keeps these in its topology table; IGRP has no this sort of desk.
To get the metrics of routes not while in the routing desk, run debug ip igrp transactions. To drive IGRP updates, the routing table underneath was cleared with distinct ip route *.
R2#debug ip igrp transactions
IGRP protocol debugging is on
06:05:33: IGRP: been given update from 172.12.123.one on Serial0.123
06:05:33: subnet 172.12.123.0, metric 10476 (neighbor 8476)
06:05:33: network one.0.0.0, metric 8976 (neighbor 501)
06:05:33: IGRP: version has become 3
06:05:33: IGRP: sending update to 255.255.255.255 by means http://edition.cnn.com/search/?text=토토사이트 of BRI0 (172.twelve.12.two)
06:05:33: community one.0.0.0, metric=8976
06:05:33: IGRP: sending update to 255.255.255.255 by using Serial0.123 (172.twelve.123.2) – suppressing null update
06:05:34: IGRP: gained update from 172.twelve.twelve.one on BRI0
06:05:34: subnet 172.12.thirteen.0, metric 160250 (neighbor 8476)
06:05:34: network 1.0.0.0, metric 158750 (neighbor 501)
Debug ip rip
R2#debug ip rip
IP protocol debugging is on
six:14:53: RIP: been given v2 update from 172.23.23.3 on Ethernet0
6:fourteen:53: one.0.0.0/eight by way of 0.0.0.0 in 16 hops (inaccessible)
6:14:fifty three: one.1.one.one/32 by way of 0.0.0.0 in two hops
6:14:fifty three: 172.12.0.0/sixteen through 0.0.0.0 in 16 hops (inaccessible)
6:14:53: 172.12.twelve.two/32 by means of 0.0.0.0 in two hops
six:14:fifty three: 172.12.13.0/thirty by way of 0.0.0.0 in one hops
six:14:fifty three: 172.twelve.123.0/24 via 0.0.0.0 in 1 hops
6:fourteen:53: 172.23.0.0/16 through 0.0.0.0 in sixteen hops (inaccessible)
Run debug ip rip to troubleshoot routing update troubles, RIP authentication challenges, and also to perspective the routing update contents. Crystal clear ip route * was operate to very clear the routing desk and to pressure a RIP update.
Ip route
R2(config)#ip route 1.1.one.1 255.255.255.255 172.twelve.123.one
OR
R2(config)#ip route 1.1.1.one 255.255.255.255 serial0
To configure a static route to a offered place IP tackle, utilize the ip route command. The destination is followed by a subnet mask, and that could be followed by possibly the following-hop IP deal with or the exit interface on the area router.
Ip route 0.0.0.0 0.0.0.0
R2(config)#ip route 0.0.0.0 0.0.0.0 172.twelve.123.1
R2(config)#ip route 0.0.0.0 0.0.0.0 ethernet0
To configure a default static route, use both of these two instructions.
You might have any selection for the very first 0.0.0.0″, due to the fact the next set of zeroes is the subnet mask. Which means that any spot will match this route assertion.
That’s a fantastic review to start with! I’ll be again tomorrow with Part II of this CCNA Test command critique!