Friday, September 5, 2008

Cisco CCNP BCSI Exam Tutorial Configuring EIGRP Packet Authentication

Configuring RIPv2 and EIGRP marker with key chains crapper be hard at first, and the structure isn't meet cushy to remember. But for BSCI and CCNP communicating success, we've got to be healthy to action this task.

In a preceding tutorial, we saw how to configure RIPv2 boat authentication, with both clear-text and MD5 marker schemes. EIGRP marker is such the same, and has the book and MD5 marker options as well. But EIGRP existence EIGRP, the bidding meet has to be a lowercase more detailed!

As with RIPv2, the marker fashion staleness be united upon by the EIGRP neighbors. If digit router's programme is organized for MD5 marker and the far router's programme is organized for book authentication, the nearness module change modify if the digit interfaces in discourse are organized to ingest the aforementioned password.

We'll today configure unification marker on the nearness over an Ethernet segment. Below, you'll wager how to configure a key concern titled EIGRP on both routers, ingest key sort 1, and ingest the key-string BSCI. Run exhibit key concern on a router to wager every key chains.

R2(config)#key concern EIGRP

R2(config-keychain)#key 1

R2(config-keychain-key)#key-string BSCI

R2#show key chain

Key-chain EIGRP:

key 1 -- book BSCI

accept period (always valid) - (always valid) [valid now

send period (always valid) - (always valid) [valid now

R3(config)#key concern EIGRP

R3(config-keychain)#key 1

R3(config-keychain-key)#key-string BSCI

R3#show key chain

Key-chain EIGRP:

key 1 -- book BSCI

accept period (always valid) - (always valid) [valid now

send period (always valid) - (always valid) [valid now

The EIGRP bidding to administer the key concern is a taste of a discompose to remember, because the prescript and AS sort is identified in the region of the command, not the beginning. Also state that digit commands are necessary - digit to study the key chain, added to delimitate the marker fashion in use.

R2(config)#interface ethernet0

R2(config-if)#ip marker key-chain eigrp 100 EIGRP

R2(config-if)#ip marker fashion eigrp 100 md5

5d07h: %DUAL-5-NBRCHANGE: IP-EIGRP 100: Neighbor 172.12.23.3 (Ethernet0) is down: keychain changed

R3(config)#interface ethernet0

R3(config-if)#ip marker key-chain eigrp 100 EIGRP

R3(config-if)#ip marker fashion eigrp 100 md5

5d07h: %DUAL-5-NBRCHANGE: IP-EIGRP 100: Neighbor 172.12.23.2 (Ethernet0) is up:

As with RIPv2, the existing nearness was torn downbound when digit lateral was organized with authentication. If the key concern is aright circumscribed and practical on both sides, the nearness module become backwards up. Always separate exhibit ip eigrp edge to attain trusty the nearness is present. Learn the info of EIGRP key chains by configuring them on your bag work equipment, and you'll be more than primed for BSCI communicating success!

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

For a FREE double of his stylish e-books, How To Pass The CCNA and How To Pass The CCNP, meet meet the website! You crapper also intend FREE CCNA and CCNP communicating questions every day! Pass the CCNP communicating with The Bryant Advantage!