I'm not sure I understand the differencebetween the different VPN technologies?When would a virtual tunnel interface be needed? I want to make sure that I'm using the best choice for setting up my remote LAN. I've gone through many of the Cisco docs ...

Hi all,I'm trying to setup a VPN for a remote office, to my main office, using a 1721 router and my ISP's Cisco 5000 VPN Conc. The remote office is connected to the Internet with using a different ISP and they assigned a private IP address for the W...

I just took over a LAN/WAN structure and this is something that I've never seen before.When pinging across these two subnets, I'm gettingan extra IP address for the main router:Main Office: (c3620)Eth0: 10.0.0.1Serial1/1: 10.0.5.2 <<---PPP to 10.0.5....

Can the 2600 router provide load balancing over two T-1 connections? With our original ISP, one of the two T-1 connections was always acting as a "shadow". Mgt has apparently signed a contract with a new ISPand now, both lines will be active but the...

Save yourself from headaches by properly grounding your racks!!I was constantly replacing switches due to lightning and general power problems related to our buildings.Some of them were just fried while others just started acting strange.I had our ma...