Thursday, December 24, 2009

OSPF Default Route Summarization

My lab studies today was kinda of all over the place. One of the labs I created was testing out connections to my PC's loopback and watching frames be put on the wire (with Wireshark) to my GNS3 lab. Well some how during the testing of this I lost DNS connectivity with my PC and I couldn't for the life of me figure it out. I didn't realize it was an issue with DNS until I tried connecting to using it's IP address and worked but couldn't by using it's host name. After about an hour of t-shooting my own home network (including replacing a router-switch) a simpl reboot fixed all my issues. Troubleshooting 101 tip...reboot your computer first to see if this resolves your problems! Anyways after that fiasco, I finished my studying today about learning a little bit about the different stub types and configuring a multi-homed OSPF lab dealing with route summarization.

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