Section of learning for CCNA test success is keeping all these new orders directly in your head! And let us face it, there are certainly a lot of instructions you should know to be able to move the CCNA exam and generate that certification. Here's a review of some extremely important distance vector and static routing commands you need to know, with their proper utilization and unit output.
Bandwidth
IGRP makes a default assumption that any Serial screen working IGRP is attached to a T1 line, which runs at 1544 KBPS. With equal-cost load-balancing enabled by default, this may be a prediction.
To alter IGRPs assumption, use the bandwidth command on the serial interface under consideration. Note that this control doesn't actually affect the bandwidth offered to the interface; it only changes IGRPs prediction of the bandwidth.
R2#conf t
R2( config )#int s0
R2( config-if )#bandwidth 512
Obvious internet protocol address path *
This command clears your routing dining table of all non-static and non-connected routes. Discover more on http://perrybelcherblog.tripod.com by browsing our pushing link. In a laboratory environment, its very helpful because it makes your hubs working routing protocols to send and demand updates, as opposed to waiting for the regularly scheduled updates.
R2#clear ip address course *
Debug internet protocol address igrp activities
De-bug ip igrp activities allows you to see IGRP updates being required and sent. Here, the debug is run and then a routing table is removed. The hub immediately broadcasts upgrade demands via the IGRP-enabled interfaces.
R2#debug ip address igrp function
IGRP event debugging is on
R2#clear internet protocol address course *
06:02:51: IGRP: broadcasting request o-n BRI0
06:02:51: IGRP: transmission request o-n Serial0.123
Debug ip address igrp transactions
To configure IGRP unequal-cost load-sharing with the command, youve got to understand the metric of the channels. EIGRP retains these in its topology table; IGRP has no such dining table.
To get the metrics of paths not in-the routing dining table, run de-bug internet protocol address igrp transactions. The routing dining table below was satisfied with clear internet protocol address route *, to push IGRP updates.
R2#debug internet protocol address igrp transactions
IGRP protocol debugging is o-n
R2#clear ip address path *
On Serial0.123 06:05:33: IGRP: acquired update from 172.12.123.1
06:05:33: subnet 172.12.123.0, full 10476 (neighbor 8476)
06:05:33: community 1.0.0.0, metric 8976 (friend 501)
06:05:33: IGRP: edition is now 3
06:05:33: IGRP: delivering update to 255.255.255.255 via BRI0 (172.12.12.2)
06:05:33: community 1.0.0.0, metric=8976
06:05:33: IGRP: sending update to 255.255.255.255 via Serial0.123 (172.12.123.2) - controlling null update
On BRI0 06:05:34: IGRP: obtained update from 172.12.12.1
06:05:34: subnet 172.12.13.0, full 160250 (friend 8476)
06:05:34: network 1.0.0.0, full 158750 (friend 501)
De-bug ip rip
R2#debug internet protocol address rip
Internet Protocol Address protocol debugging is o-n
R2#clear ip way *
O-n Ethernet0 6:14:53: RIP: received v-2 update from 172.23.23.3
6:14:53: 1.0.0.0/8 via 0.0.0.0 in 16 trips (unavailable)
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 1-6 hops (unavailable)
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 trips (inaccessible)
Work debug ip address rip to troubleshoot routing update problems, RIP verification problems, and to see the routing update contents. For a second standpoint, you might hate to take a gaze at: click here for . Clear ip address way * was run to clear the routing table and to drive a RIP update.
Ip option
R2#conf t
R2( config )#ip way 1.1.1.1 255.255.255.255 172.12.123.1
OR
R2( config )#ip course 1.1.1.1 255.255.255.255 serial0
To configure a static route to a given destination IP address, make use of the ip route command. Dig up more about meet perry belcher by browsing our ideal article directory. The spot is followed by a subnet mask, and that may be followed by both the next-hop INTERNET protocol address or the exit interface to the local router.
Ip address option 0.0.0.0 0.0.0.0
R2#conf t
R2( config )#ip course 0.0.0.0 0.0.0.0 172.12.123.1
OR
R2( config )#ip route 0.0.0.0 0.0.0.0 ethernet0
To configure a default static route, use either of those two instructions.
You might have any number for your first 0.0.0.0', because the second pair of zeroes is the subnet mask. This ensures that any location will match this way record.
That is a superb review to get started with! I will be straight back tomorrow with Part II of the CCNA assessment order assessment!.
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