Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] NAT (Network Address Translation) 2nd dynamic NAT, routed firewalls routed firewalls static NAT, routed firewalls network device virtualization [See device virtualization.] networks acquisitions/mergers, integrating into consolidating, reasons for virtualization contractors access dynamic membership employee access guest access authentication/authorization physical access locations layers, collapsing (hierarchical campus design) partner access perimeters 2nd common services positioning firewalls fusion routers IDS unprotected services quarantine VN segments security controls static membership topologies, Layer 3 h2h architectures NHRP (Next Hop Resolution Protocol) GRE tunnel based L3VPN architectures mGRE tunnel-based L3VPN architectures hub configurations spoke configurations nonces, L2TPv3 |