I am looking at setting up an ADSL WAN backup link for our office in Manchester to link into our main site in London. The thought was to use a site to site VPN link. Has anyone tried this before or any thoughts on this?
Hi, not tried it but here goes anyway. I'm guessing that you currently have a leased line from BT between the two offices on serial ports on two existing Cisco routers. If so, I would get a couple of 827 routers with the VPN IOS option. Set up the point to point VPN link between the two 827s and then set up HSRP between the 827 and the other cisco router at each end. Give the virtual IP address setup in HSRP as the default route for the other office and if one fails then the connection goes via the other. You may need to setup additional routes in each router to point to each other as well to cover against line failure. Not sure if HSRP deals with line failure as well as device failure.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.