Posted by: Joshua Wood
Cisco, DMVPN, IPSec
Hi all, VoIP (voice over IP) is hot these days. It isn’t as sexy as some of the emerging technologies but it still being deployed at an ever increasing rate. One of the challenges with VoIP is how to allow your branches to make calls between one another without first having to go the head office. Well, DMVPN is one answer that can really work well for companies that have that sort of a need. A national car dealership where dealerships in the same city or across the country that consistently need to talk to each other about parts or availability of stock would need such a feature.
DMPVN allows you to create a template that allows the inter-branch traffic to be sent across IPSec without having to create a VPN tunnel from each branch to each branch. In a company of 10 sites could easily be 100 independently configured IPSec tunnels. Check out the links below to get you started and then check back in a bit for some more info on the topic.
Until next time,
General DMVPN Info: http://www.cisco.com/en/US/products/ps6658/index.html
Routing Protocols Across DMVPN: http://www.cisco.com/en/US/tech/tk583/tk372/technologies_configuration_example09186a008014bcd7.shtml