The Journey of a Network Engineer:

ipsec

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September 10, 2013  4:15 AM

How to configure Cisco DMVPN? Part-3



Posted by: Sulaiman Syed
ASA, Cisco, configuration, DMVPN, GRE, HUB, ipsec, mGRE

We have seen how in the first part how DMVPN works, the dynamic tunnels and how we can peer Spokes to each other to allow direct traffic. But all will fail if our Hub goes down, as it is critical in keeping the DMVPN network up. For redundancy Dual Hub DMVPN networks were designed, we would look at...

August 7, 2013  12:19 AM

Configuring Cisco GRE over Site to site VPN



Posted by: Sulaiman Syed
access-list, Cisco, end-to-end, GRE, ios, ipsec, route-map, router, vpn

Previously we have seen how the site to site VPN works. in this example, I would use the topology below to configure Site to Site VPN. Then we would create a GRE Tunnel and secure it with the IPsec tunnel, called GRE over IPSec. thus providing routing protocols the ability to transverse the sites...


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