LAS VEGAS — A researcher at Black Hat has revealed a vulnerability in the most common corporate router protocol that puts networks using it at risk of attacks that compromise data streams, falsify ...

http://ipexpert.ccieblog.com/ – In part I of our series, we looked at the default OSPF network type on frame-relay (non-broadcast). This begs the question of “OK ...

Well, at least one of you asked… and I did promise! Next we’ll move on to Type 5 (external) LSAs. (yeeha!) But if you didn’t yet vote for your top requests from Santa for this year, at least relative ...

I have two WAN routers, each connected to a separate ISP. I'm advertising 200.200.200.0/24 over BGP to both. My AS is 200200. Both of these WAN routers are connected to a switch fabric with my LAN ...

Equal-cost multi-path allows a router to insert more than one path to a destination in the routing table to enable load balancing. Here's how ECMP works and how to configure it in OSPF. Equal-cost ...

http://ipexpert.ccieblog.com/ – OSPF is a topic that must be absolutely mastered for the CCIE lab exam. Many students understand the fundamental concepts, but get ...