8 [Administration] Tab Page172 [Setup] Item List Setting up IP SecurityWith the IP security function, you can enable data encryption communication using IPsec (IP Security Protocol).With the [Flush Connections] button, if the keys for IPsec communication are leaked or a security violation occurs, youcan manually delete (flush) the current session with the flush connection function and start a new session. If you wantto delete the information of SAD (Security Association Database) for any reason, you can delete it in the same way.Item name Description1 [Return] button Closes the [IP Security] screen.2 Enable IPsec Specify whether or not to enable IPsec.y Enable — Enables IPsec.y Disable — Disables IPsec.3 Policy Select a policy to use in IPsec.To enable data encryption communication using IPsec, you must first create IPsec policiesaccording to your system environment.P.182 “[Add Policy] / [Modify Policy] screen”4 Filter Creates a filter for the IPsec environment.[Add] button — You can add a filter on the [Add Filter] screen.P.174 “[Add Filter] / [Modify Filter] screen”[Delete] button — Select filters to delete and click the [Delete] button to delete them.Filter Name — Click a registered filter name to modify its content.P.174 “[Add Filter] / [Modify Filter] screen”Filter Action — Displays the action of the registered filter.5 Manual Key Set the IPsec manual key.[Add] button — You can add a manual key on the [Add Manual Key] screen.P.176 “[Add Manual Key] / [Modify Manual Key] screen”[Delete] button — Select manual keys to delete and click the [Delete] button to deletethem.Manual Key Name — Click a registered manual key name to modify its content.P.176 “[Add Manual Key] / [Modify Manual Key] screen”Encryption Algorithm — Displays the registered encryption algorithms.6 IKE Key Set the IPsec IKE key.[Add] button — You can add an IKE key on the [Add IKE] screen.P.178 “[Add IKE] / [Modify IKE] screen”[Delete] button — Select keys to delete and click the [Delete] button to delete them.Key Name — Click a registered key name to modify its content.P.178 “[Add IKE] / [Modify IKE] screen”IKE Type — Displays the registered IKE types.7 Profile First create a filter and a manual key or IKE key according to your IPsec environment, andthen create profiles by combining them.[Add] button — You can add a profile on the [Add Profile] screen.P.180 “[Add Profile] / [Modify Profile] screen”[Delete] button — Select profiles to delete and click the [Delete] button to delete them.Profile Name — Click a registered profile name to modify its content.P.180 “[Add Profile] / [Modify Profile] screen”Profile Mode — Displays the registered profile mode.12345678