skip to main text

Encrypting Communication: IPsec

IP Security Protocol (IPsec) is a protocol for encrypted communication over networks such as the Internet. While TLS encrypted communication is a technology for encryption with specific applications such as web browsers and e-mail clients, IPsec communication encrypts at an IP protocol level, enabling more versatile security. It is supported only when the IP address setting is IPv6. IPv4 is not supported.

IPsec settings

  • For the operation panel

    (Setup) or Setup button > LAN Settingss > Detailed Settings or select network type > Manual setup > IPsec Settings > Enable or Disable.

  • IPsec-supporting protocols

    • IPv6 IPsec

    • AH

      • HMAC-SHA-1-96

      • HMAC-SHA-256-128

    • ESP

      • DES-CBC

      • 3DES-CBC

      • AES-CBC (* 128, 192, and 256-bit key lengths supported)

  • IKE-supporting protocols

    • IKEv1

    • IKEv1 Phase1

      • Main mode

    • Authentication method (IKEv1)

      • Pre-shared key (16 characters or less, 1-byte letters and numbers)

    • DH key (IKEv1)

      • Group 1

      • Group 2

      • Group 5

      • Group 14

    • Encryption (IKEv1)

      • 3DES-CBC

      • AES-CBC (* 128, 192, and 256-bit key lengths supported)

    • Authentication (IKEv1)

      • AUTH-HMAC-SHA1-96

      • AUTH-HMAC-MD5-96