What is a Dynamic Multipoint VPN and why to use it? DMVPN provides the capability for creating a dynamic-mesh VPN network without having to pre-configure (static) all possible tunnel end-point peers, including IPsec (Internet Protocol Security) and ISAKMP (Internet Security Association and Key Management Protocol) peers. DMVPN is initially configured Read more…
What is a Site-to-site IPsec VPN and why to use it? A virtual private network (VPN) extends a private network across a public network, and enables users to send and receive data as if their computers were directly connected to the private network. A site-to-site VPN allows offices in multiple Read more…
What are Access Control Lists and why to use them? An access control list is a rule, or can be comprised of one or more rules, that are applied to an interface allowing hosts to communicate to other hosts by filtering traffic using specific protocols such as tcp, udp, icmp Read more…
What are Zone-Based Firewalls and how to use them? Zone-Based Firewalls (ZBF) is a firewall methodology of placing interfaces into zone and defining traffic definitions to allow traffic to pass or drop. In the past firewalls were comprised of access-list that would define both source and destination as well as Read more…