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CiscoHomeLab
3 posts
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Hey Stretch, This threw me for a loop and I thought it my be a typo. On page 5, you have the following for EIGRP:
Since it's EIGRP, should [wildcard mask] be there? Thanks for posting your notes. It's helping me focus my studies. |
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nishv
2 posts
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If you don't specify the wildcard mask, it will use the network's classfull address, regardless of whether you use no auto-summery is used or not because the router does not know which VLSM to use. |
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CiscoHomeLab
3 posts
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Hmmm.... I verified this in the Cisco Field Manual for Router Configuration and the CCNA Portable Command Guide before posting. Neither mention a wildcard mask. So, in a real world situation, which would you be more likely to deploy? EIGRP with or without a wildcard mask? And how does this apply to this command?
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nishv
2 posts
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Always use the wildcard mask and “no auto-summery” unless you are running EIGRP on a small scale network without any future expansion. It get problematic when you have more than one network running which both comes under one classfull mask.
is used to summarise EIGRP routes on an interface level. http://www.cisco.com/application/pdf/paws/16406/eigrp-toc.pdf Hope this helps... |
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CiscoHomeLab
3 posts
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That helps tremendously. Thanks for taking the time to answer my questions. |
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ekaleido
4 posts
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Network statements under "router eigrp X" specify which interfaces you are going to speak EIGRP on. It is sometimes used erroneously as a means by which to inject routes into EIGRP, but this generally isn't "proper." Instead, I would either inject routes with interface-level summary-address statements or by making the router some form of eigrp stub. Your mileage may, of course, vary. |
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mellowd
2 posts
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I've always put the wildcard mask in |
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