May 28, 2019 · Configure SSL VPN Tunnel; VPN -> SSL VPN Setting; To avoid conflicts, switch Listen on Port to 10443; In Restrict Access: Select Allow access from any host; In the Authentication/Portal Mapping section: Add SSL VPN user group and map it to the full-access portal
Set VPN Type to SSL VPN, set Remote Gateway to the IP of the listening FortiGate interface (in the example, 172.20.121.46). Select Customize Port and set it to 10443. Select Add. Connect to the VPN using the SSL VPN user's credentials. You are able to connect to the VPN tunnel. On the FortiGate, go to Monitor > SSL-VPN Monitor. The user is Remove any Phase 1 or Phase 2 configurations that are not in use. If a duplicate instance of the VPN tunnel appears on the IPsec Monitor, reboot your FortiGate unit to try and clear the entry. If you are still unable to connect to the VPN tunnel, run the following diagnostic command in the CLI: diagnose debug application ike -1 diagnose debug Remove the VPN Interface from any zones you had applied them to in the Interface section of the Fortigate. Delete all static routes that had reference that interface, remove that interface from all Firewall policy references (If not zoned, if zoned, then removing the interface from the zone should suffice). The crypto IPSec-df bit clear will clear the df-bit in the IPSec header being formed during encryption. this may jus help in your case. You can also change the TCP MSS on the egress interface so this will rule out MTU related issues. FortiAP unable to connect to FortiGate via IPsec VPN tunnel with dtls-policy clear-text. 572350. FortiOS GUI cannot support FAP-U431F and FAP-U433F profiles. 580169. Captive portal (disclaimer) redirect not working for Android phones. Ensure that both ends of the VPN tunnel are using Main mode, unless multiple dial-up tunnels are being used. Remove any Phase 1 or Phase 2 configurations that are not in use. If a duplicate instance of the VPN tunnel appears on the IPsec Monitor, reboot your FortiGate unit to try and clear the entry.
May 20, 2018 · In this post we will see how to configure an IPSEC VPN tunnel between two remote locations through Fortigate firewalls. The scenario that we will use as example is the following: The objective will be to create a IPSEC VPN tunnel that communicates securely both offices (10.11.1.0/24 and 10.11.2.0/24).
Remove the VPN Interface from any zones you had applied them to in the Interface section of the Fortigate. Delete all static routes that had reference that interface, remove that interface from all Firewall policy references (If not zoned, if zoned, then removing the interface from the zone should suffice).
FortiGate dialup-client configurations. This section explains how to set up a FortiGate dialup-client IPsec VPN. In a FortiGate dialup-client configuration, a FortiGate unit with a static IP address acts as a dialup server and a FortiGate unit having a dynamic IP address initiates a VPN tunnel with the FortiGate dialup server.
Ping sweeps starting at a low to high packet size, can also some shed light to a vpn-tunnel mtu issues. A review of the diag commands that are useful for all firewall engineers using a Fortigate security appliance; diag debug enable diag packet sniffer diag debug app ike diag vpn tunnel list