Palo alto IPSEC - GUI and CLI

VPN IPSEC Configuration Cheat Sheet for Palo Alto Firewall: ( GUI )

1. Go to the Network tab and select VPN > IPSEC Tunnels.
2. Click on the "Add" button to create a new IPSEC tunnel.
3. Fill in the basic settings, including the tunnel name, local and remote gateway IP addresses, and pre-shared key.
4. Go to the Network tab and select Virtual Routers.
5. Create a new virtual router or edit an existing one and add the newly created IPSEC tunnel to it.
6. Configure the security policies to allow traffic through the IPSEC tunnel.

VPN IPSEC Troubleshooting Cheat Sheet for Palo Alto Firewall: ( GUI )

1. Check the IPSEC tunnel status by going to the Network tab and selecting VPN > IPSEC Tunnels. Make sure the tunnel is in an "Up" state.
2. Verify that the local and remote gateways have correct IP addresses and that the pre-shared key is correct.
3. Check if there is any mismatch in the IPSEC proposals configured on both ends.
4. Verify that the security policies are configured correctly to allow traffic through the IPSEC tunnel.
5. Check if there is any issue with the virtual routers or virtual interfaces.
6. Check if there is any issue with the routing or the next hop IP addresses
7. Ensure that the traffic is matching the correct security policy by checking the logs and troubleshoot the issue accordingly.
8. If nothing else works, try to re-establish the IPSEC tunnel by going to the Network tab and selecting VPN > IPSEC Tunnels, then clicking on the "Clear" button next to the tunnel that you want to re-establish.

VPN IPSEC Configuration Using CLI on Palo Alto Firewall: ( CLI )

1. Connect to the firewall's CLI using a terminal program such as PuTTY.
2. Use the command "configure" to enter configuration mode.
3. Use the command "set vpn ipsec sa-bindings <tunnel-name> local-ip <local-ip-address>" to set the local IP address for the tunnel.
4. Use the command "set vpn ipsec sa-bindings <tunnel-name> remote-ip <remote-ip-address>" to set the remote IP address for the tunnel.
5. Use the command "set vpn ipsec sa-bindings <tunnel-name> pre-shared-key <pre-shared-key>" to set the pre-shared key for the tunnel.
6. Use the command "set vpn ipsec sa-bindings <tunnel-name> enable" to enable the tunnel.
7. Use the command "commit" to save the configuration.
8. Use the command "exit" to exit configuration mode.

VPN IPSEC Troubleshooting Using CLI on Palo Alto Firewall: (CLI)

1. Connect to the firewall's CLI using a terminal program such as PuTTY.
2. Use the command "show vpn ipsec sa" to view the current status of the IPSEC tunnels.
3. Use the command "ping <remote-ip-address>" to check if there is connectivity to the remote gateway.
4. Use the command "show vpn ipsec sa-bindings <tunnel-name>" to view the details of a specific tunnel.
5. Use the command "show vpn ipsec proposal" to check if the IPSEC proposals are configured correctly on both ends.
6. Use the command "show running-config" to view the current configuration of the firewall.
7. Use the command "show log vpn" to view the VPN-related log entries.
8. Use the command "clear vpn ipsec sa-bindings <tunnel-name>" to clear a specific tunnel.