WAN - vtsns.edu.rsvtsns.edu.rs/wp-content/uploads/2016/03/04-WAN-Enterprise-Networ… · MPLS WAN...
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WAN
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WAN
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WAN
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WAN
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Virtual Private Network – encrypted connection
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VPN – IPsec protocol stack
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VPN connection
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VPN – more packet layers
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VPN – more packet layers
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VPN tunnels
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Dynamic Multipoint VPN
DMVPN is a Cisco IOS® Software solution for building IPsec + GRE VPNs in an easy, dynamic, and scalable manner.
DMVPN relies on two proven technologies:
1. Next Hop Resolution Protocol (NHRP): Creates a distributed (NHRP) mapping database of all the spoke tunnels to real (public interface) addresses
2. Multipoint GRE Tunnel Interface: Single GRE interface to support multiple GRE and IPsec tunnels; simplifies size and complexity of configuration
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Dynamic Multipoint VPN
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DMVPN – Full Mesh
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Full Mesh - Routing
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Static Routing
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Dynamic Routing
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Enterprise Design
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Enterprise Design