Contents
FortiGate-3000 Administration Guide 01-28006-0010-20041105 13
To configure the VPN connection .............................................................................. 31
To disable IPSec........................................................................................................ 31
To connect to the L2TP VPN ..................................................................................... 32
Certificates ........................................................................................................................ 32
Viewing the certificate list.............................................................................................. 33
Generating a certificate request.................................................................................... 33
Installing a signed certificate ........................................................................................ 34
Enabling VPN access for specific certificate holders ................................................... 35
CLI configuration............................................................................................................... 36
ipsec phase1................................................................................................................. 36
ipsec phase2................................................................................................................. 38
ipsec vip ........................................................................................................................ 38
Authenticating peers with preshared keys ........................................................................ 40
Gateway-to-gateway VPN................................................................................................. 40
Dialup VPN ....................................................................................................................... 41
Dynamic DNS VPN ........................................................................................................... 41
Manual key IPSec VPN..................................................................................................... 42
Adding firewall policies for IPSec VPN tunnels................................................................. 42
Setting the encryption policy direction .......................................................................... 42
Setting the source address for encrypted traffic ........................................................... 42
Setting the destination address for encrypted traffic..................................................... 43
Adding an IPSec firewall encryption policy ................................................................... 43
Internet browsing through a VPN tunnel ........................................................................... 43
Configuring Internet browsing through a VPN tunnel.................................................... 44
IPSec VPN in Transparent mode...................................................................................... 45
Special rules ................................................................................................................. 45
Hub and spoke VPNs........................................................................................................ 46
Configuring the hub....................................................................................................... 46
Configuring spokes ....................................................................................................... 47
Redundant IPSec VPNs.................................................................................................... 48
Configuring redundant IPSec VPNs.............................................................................. 49
Configuring IPSec virtual IP addresses ............................................................................ 50
Troubleshooting ................................................................................................................ 51
IPS ......................................................................................................................... 53
Signature........................................................................................................................... 54
Predefined..................................................................................................................... 54
To enable or disable predefined signature groups..................................................... 56
To configure predefined signature settings ................................................................ 56
To restore the recommended settings of a signature................................................. 56
Custom.......................................................................................................................... 57
To add a custom signature......................................................................................... 58
Anomaly............................................................................................................................ 59
To configure the settings of an anomaly .................................................................... 60
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