Comments on: Understanding Wild Card Masks http://www.routerfreak.com/understanding-wild-card-masks/ Tools, Tips and Reviews for Network Engineers Wed, 08 Feb 2012 07:57:55 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Joe http://www.routerfreak.com/understanding-wild-card-masks/comment-page-1/#comment-3050 Joe Thu, 02 Feb 2012 11:41:36 +0000 http://www.routerfreak.com/?p=403#comment-3050 For most cases day to day NetEng stuff, yes the wild card is simply the reverse of the Subnet mask. However if you need to split routing, as in the example, to send traffic for even networks one direction and all odd networks another direction, you will have to use a wild card mask. Hence the name wild card which causes the router to match all entries in the routing table on the wild card bits. HINT - this may be on the CCIE exam. For most cases day to day NetEng stuff, yes the wild card is simply the reverse of the Subnet mask. However if you need to split routing, as in the example, to send traffic for even networks one direction and all odd networks another direction, you will have to use a wild card mask. Hence the name wild card which causes the router to match all entries in the routing table on the wild card bits.

HINT – this may be on the CCIE exam.

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