Najprostsza konfiguracja site 2 site GRE IPSEC VPN.
Konfiguracja R1hostname R1!no ip domain lookup!crypto isakmp policy 10encr aes 256authentication pre-sharegroup 14lifetime 10000crypto isakmp key cisco address 10.2.3.2!crypto ipsec transform-set TS esp-aes esp-sha-hmac mode transport!crypto map CMAP 10 ipsec-isakmp set peer 10.2.3.2set transform-set TS match address ACL1!interface Loopback1ip address 1.1.1.1 255.255.0.0!interface Tunnel0ip address 10.1.3.1 255.255.255.0tunnel source FastEthernet0/0tunnel destination 10.2.3.2!interface FastEthernet0/0ip address 10.1.2.1 255.255.255.0duplex halfcrypto…