Aqui os traigo gracias a Miguel, un antiguo compañero de curro, la configuración necesaria para poder hacer una conexión VPN entre un Fortigate y un Cisco Linksys RV042.

Diagrama de red:

Fortigate (H.Q.)— INTERNET — Linksys (Client)

Configuración en el linksys:
Name tunnel: linksysVpn
Interface: wan1
enable: active
Local ip: Ip pública del linksys
Subnet: red del linksys (192.168.0.0/24)
Remote ip: ip publica del fortigate
Subnet: red fortigate (192.168.1.0/24)
Ipsec Phase1: IKE with Preshared key
Phase1 DH Group: Group2
Phase1 Encryption: 3DES-SHA1
Life time: 3600
Phase2 Encryption: 3DES-SHA1
Life time: 3600
Presharekey: ***********
Aggressive Mode: Activate

Configuración en el Fortigate:
En la Phase1:
Name:linksysVpn (El mismo que el linksys)
Remote GAteway: Dial user
Interface: WAN1
Aggressive mode enable
Presharekey: *******
Encryption: 3DES-SHA1
Phase1 DH Group: Group2
Life time: 3600

En la Phase2:
Encryption: 3DES-SHA1
Life time: 3600

Estas son las reglas a aplicar en el Firewall del Fortigate:

Source Interface: internal
Source addres: red lan
Destination Interface: WAN1
Destination address: La red del linksys ( creamos una address)
Service: ANY
Action: IPSEC
VPN Tunnel: linksysVpn
Allow inbonund: enable
Allow outbound:enable

  1. Eduardo dice:

    I have followed your steps, I can see the tunnel is up both on the Fortigate monitor and on the RV042 summary, but cannot ping or do anything else between the two networks… hints?