Here's the situation: Multiple markets with non-Cisco devices that run OSPF.Each market has one Cisco, with two internet connections from differnet providers.Each site has two DMVPN connections (one for each internet connection). Each remote site has...

I've been assigned to clean up our internal corporate LAN/WAN (separate from our production network). My first step is to duplicate our network in GNS3 so I can test the changes I want to make before doing them on the live network but I'm running int...

At one of our remote sites we have a /29 provided from our current ISP, and they're using a /30 as a bridge between us and the internet.  The /30 is not routed to the internet and all traffic to it appears to be blocked (TCP as well as UDP).  We need...

I studied tunnels for my cert tests years ago but haven't touched them at all in my work since then. I'm taking over a network someone else built, and it uses a lot of crypto tunnels and GRE tunnels. I'm not sure they're built properly. As I said, it...

I've run across something that has me curious.  I've been playing with user account privilege levels on some routers & switches running IOS 12.2.  I've found many webpages that explain how to set/modify the privilege level of specific commands, but I...