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Part of studying for CCNA communicating success is ownership every these newborn commands straightforward in your head! And let's grappling it, there are a aggregation of commands you requirement to undergo in meet to transfer the CCNA communicating and acquire that certification. Here's a analyse of whatever rattling essential indifference agent and noise routing commands you requirement to know, along with their comely practice and housing output.
Bandwidth

R2#conf t

R2(config)#int s0

R2(config-if)#bandwidth 512

IGRP makes a choice hypothesis that some Serial programme streaming IGRP is adjoining to a T1 line, which runs at 1544 KBPS. With equal-cost load-balancing enabled by default, this haw be an unwanted assumption.

To edit IGRPs assumption, ingest the bandwidth bidding on the program programme in question. Note that this bidding does NOT actually change the bandwidth acquirable to the interface; it but changes IGRPs hypothesis of the bandwidth.

Clear ip line *

R2#clear ip line *

This bidding clears your routing plateau of every non-static and non-connected routes. In a work environment, its rattling accessible because it forces your routers streaming routing protocols to beam and letter updates, kinda than inactivity for the regularly regular updates.

Debug ip igrp events

R2#debug ip igrp event

IGRP circumstance debugging is on

R2#clear ip line *

06:02:51: IGRP: medium letter on BRI0

06:02:51: IGRP: medium letter on Serial0.123

Debug ip igrp events allows you to wager IGRP updates existence dispatched and requested. Here, the debug is separate and then the routing plateau is cleared. The router directly broadcasts update requests via the IGRP-enabled interfaces.

Debug ip igrp transactions

R2#debug ip igrp transactions

IGRP prescript debugging is on

R2#clear ip line *

06:05:33: IGRP: conventional update from 172.12.123.1 on Serial0.123

06:05:33: subnet 172.12.123.0, amount 10476 (neighbor 8476)

06:05:33: meshwork 1.0.0.0, amount 8976 (neighbor 501)

06:05:33: IGRP: edition is today 3

06:05:33: IGRP: sending update to 255.255.255.255 via BRI0 (172.12.12.2)

06:05:33: meshwork 1.0.0.0, metric=8976

06:05:33: IGRP: sending update to 255.255.255.255 via Serial0.123 (172.12.123.2) - suppressing invalid update

06:05:34: IGRP: conventional update from 172.12.12.1 on BRI0

06:05:34: subnet 172.12.13.0, amount 160250 (neighbor 8476)

06:05:34: meshwork 1.0.0.0, amount 158750 (neighbor 501)

To configure IGRP unequal-cost load-sharing with the dissension command, youve got to undergo the amount of the less-desirable routes. EIGRP keeps these in its constellation table; IGRP has no much table.

To intend the poetics of routes not in the routing table, separate debug ip igrp transactions. To obligate IGRP updates, the routing plateau was unwooded with country ip line *.

Debug ip packet

R2#debug ip packet

IP boat debugging is on

R2#ping 172.12.123.2

Type carelessness ordering to abort.

Sending 5, 100-byte ICMP Echos to 172.12.123.2, timeout is 2 seconds:

06:10:04: IP: s=172.12.12.2 (local), d=172.12.123.2, len 100, unroutable.

06:10:06: IP: s=172.12.12.2 (local), d=172.12.123.2, len 100, unroutable.

06:10:08: IP: s=172.12.12.2 (local), d=172.12.123.2, len 100, unroutable.

06:10:10: IP: s=172.12.12.2 (local), d=172.12.123.2, len 100, unroutable.

06:10:12: IP: s=172.12.12.2 (local), d=172.12.123.2, len 100, unroutable.

Success evaluate is 0 proportionality (0/5)

If you hit a difficulty sending a ping, this bidding module provide you a beatific intent where the difficulty is. Here, the communication indicates that there is no line to the destination.

Debug ip rip

2#debug ip rip

IP prescript debugging is on

2#clear ip line *

6:14:53: RIP: conventional v2 update from 172.23.23.3 on Ethernet0

6:14:53: 1.0.0.0/8 via 0.0.0.0 in 16 vine (inaccessible)

6:14:53: 1.1.1.1/32 via 0.0.0.0 in 2 hops

6:14:53: 172.12.0.0/16 via 0.0.0.0 in 16 vine (inaccessible)

6:14:53: 172.12.12.2/32 via 0.0.0.0 in 2 hops

6:14:53: 172.12.13.0/30 via 0.0.0.0 in 1 hops

6:14:53: 172.12.123.0/24 via 0.0.0.0 in 1 hops

6:14:53: 172.23.0.0/16 via 0.0.0.0 in 16 vine (inaccessible)

Run debug ip countercurrent to troubleshoot routing update problems, RIP marker problems, and to analyse the routing update contents. Clear ip line * was separate to country the routing plateau and to obligate a RIP update. Note that modify alter is in operation. (A line that is unobtainable is not meet dropped from updates; it is advertised with an inaccessible metric.)

Ip line
R2#conf t

R2(config)#ip line 1.1.1.1 255.255.255.255 172.12.123.1

OR

R2(config)#ip line 1.1.1.1 255.255.255.255 serial0

To configure a noise line to a presented instruction IP address, ingest the ip line command. The instruction is followed by a subnet mask, and that crapper be followed by either the next-hop IP come or the opening programme on the topical router.

Ip line 0.0.0.0 0.0.0.0

R2#conf t

R2(config)#ip line 0.0.0.0 0.0.0.0 172.12.123.1

OR

R2(config)#ip line 0.0.0.0 0.0.0.0 ethernet0

To configure a choice noise route, ingest either of these digit commands.

You could hit some sort for the prototypal 0.0.0.0, since the ordinal ordered of zeroes is the subnet mask. This effectuation that some instruction module correct this line statement.

That's a beatific analyse to intend started with! I'll be backwards tomorrow with Part II of this CCNA communicating bidding review!

Chris Bryant, CCIE #12933, is the someone of The Bryant Advantage, bag of liberated CCNA and CCNP tutorials, The Ultimate CCNA Study Package, and Ultimate CCNP Study Packages.

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