Portion of finding out for CCNA exam accomplishment is keeping all these new commands straight in your head! And Enable’s face it, There are tons of commands you need to know to be able to move the CCNA exam and gain that certification. In this article’s an evaluation of some important distance vector and static routing instructions you have to know, in conjunction with their proper use and console output.
Bandwidth
IGRP can make a default assumption that any Serial interface working IGRP is connected to a T1 line, which operates at 1544 KBPS. With equal-Expense load-balancing enabled by default, this may be an unwanted assumption.
To change IGRPs assumption, make use of the bandwidth command on the serial interface in issue. Notice that this command doesn't essentially influence the bandwidth accessible to the interface; it merely improvements IGRPs assumption of the bandwidth.
R2#conf t
R2(config)#int s0
R2(config-if)#bandwidth 512
Apparent ip route *
This command clears your routing table of all non-static and non-connected routes. In a lab surroundings, its extremely handy because it forces your routers working routing protocols to mail and request updates, as opposed to looking forward to the often scheduled updates.
R2#apparent ip route *
Debug ip igrp situations
Debug ip igrp occasions helps you to see IGRP updates becoming sent and requested. Below, the debug is operate and then the routing table is cleared. The router right away broadcasts update requests by using the IGRP-enabled interfaces.
R2#debug ip igrp celebration
IGRP occasion debugging is on
06:02:51: IGRP: http://query.nytimes.com/search/sitesearch/?action=click&contentCollection®ion=TopBar&WT.nav=searchWidget&module=SearchSubmit&pgtype=Homepage#/토토사이트 broadcasting ask for on BRI0
06:02:fifty one: IGRP: broadcasting request on Serial0.123
Debug ip igrp transactions
To configure IGRP unequal-Value load-sharing Together with the variance command, youve received to grasp the metric with the fewer-desirable routes. EIGRP keeps these in its topology desk; IGRP has no such desk.
To have the metrics of routes not in the routing table, 메이저사이트 operate debug ip igrp transactions. To power IGRP updates, the routing desk beneath was cleared with apparent ip route *.
R2#debug ip igrp transactions
IGRP protocol debugging is on
06:05:33: IGRP: been given update from 172.twelve.123.one on Serial0.123
06:05:33: subnet 172.12.123.0, metric 10476 (neighbor 8476)
06:05:33: network 1.0.0.0, metric 8976 (neighbor 501)
06:05:33: IGRP: version is now 3
06:05:33: IGRP: sending update to 255.255.255.255 by way of BRI0 (172.twelve.12.2)
06:05:33: community one.0.0.0, metric=8976
06:05:33: IGRP: sending update to 255.255.255.255 by means of Serial0.123 (172.12.123.two) – suppressing null update
06:05:34: IGRP: been given update from 172.twelve.twelve.1 on BRI0
06:05:34: subnet 172.twelve.thirteen.0, metric 160250 (neighbor 8476)
06:05:34: community 1.0.0.0, metric 158750 (neighbor 501)
Debug ip rip
R2#debug ip rip
IP protocol debugging is on
6:14:53: RIP: received v2 update from 172.23.23.3 on Ethernet0
6:fourteen:fifty three: one.0.0.0/eight by using 0.0.0.0 in 16 hops (inaccessible)
six:fourteen:fifty three: one.one.one.one/32 by using 0.0.0.0 in two hops
six:14:53: 172.twelve.0.0/sixteen by using 0.0.0.0 in sixteen hops (inaccessible)
6:fourteen:fifty three: 172.12.twelve.2/32 by using 0.0.0.0 in two hops
six:14:fifty three: 172.12.13.0/30 via 0.0.0.0 in 1 hops
six:fourteen:fifty three: 172.12.123.0/24 by means of 0.0.0.0 in one hops
6:14:fifty three: 172.23.0.0/sixteen by means of 0.0.0.0 in 16 hops (inaccessible)
Operate debug ip rip to troubleshoot routing update challenges, RIP authentication difficulties, also to check out the routing update contents. Clear ip route * was operate to crystal clear the routing table also to pressure a RIP update.
Ip route
R2(config)#ip route one.one.1.1 255.255.255.255 172.twelve.123.1
OR
R2(config)#ip route one.one.1.one 255.255.255.255 serial0
To configure a static path to a presented desired destination IP handle, make use of the ip route command. The location is followed by a subnet mask, and that could be accompanied by both the next-hop IP tackle or perhaps the exit interface to the local 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.one
R2(config)#ip route 0.0.0.0 0.0.0.0 ethernet0
To configure a default static route, use possibly of these two instructions.
You could have any quantity for the first 0.0.0.0″, because the second list of zeroes may be the subnet mask. Therefore any spot will match this route assertion.
That’s a good evaluate to get going with! I’ll be back again tomorrow with Part II of this CCNA Examination command evaluate!