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Category Archives: Router

Different MTU Settings on a Cisco 877 Router

I have a remote site on an ADSL connection using a Cisco 877 router. There’s an IPSec VPN back to my location. They connection speed is very good: Download Speed (kbps): 23410 Upload Speed (kbps): 1017 The ADSL router was configured with pretty typical MTU and MSS settings (probably copied off the Internet): interface Vlan1 [...]

Configuring L2TP Support on a Cisco ISR Router

Instructions I consulted a number of sites on the Internet when I was attempting to configure L2TP on a Cisco router. I found many people with the same issues I had but no complete solution. In the end, my problem was that I needed an access list (see access-list 130 below). Below is an example [...]