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What Encryption Methods are Available for IPsec Tunnels?

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Please see the below table for all Encryption Modes, Integrity Algorithms, and DH Groups available for IPsec tunnels:

Type Available Methods
Encryption Mode
  • 168 bit 3DES-EDE-CBC
  • 128 bit Blowfish-CBC
  • 192 bit Blowfish-CBC
  • 256 bit Blowfish-CBC
  • 128 bit AES-CBC
  • 192 bit AES-CBC
  • 256 bit AES-CBC
  • 128 bit AES-COUNTER
  • 192 bit AES-COUNTER
  • 256 bit AES-COUNTER
  • 128 bit AES-CCM with 64 bit ICV
  • 192 bit AES-CCM with 64 bit ICV
  • 256 bit AES-CCM with 64 bit ICV
  • 128 bit AES-CCM with 96 bit ICV
  • 192 bit AES-CCM with 96 bit ICV
  • 256 bit AES-CCM with 96 bit ICV
  • 128 bit AES-CCM with 128 bit ICV
  • 192 bit AES-CCM with 128 bit ICV
  • 256 bit AES-CCM with 128 bit ICV
  • 128 bit AES-GCM with 64 bit ICV
  • 192 bit AES-GCM with 64 bit ICV
  • 256 bit AES-GCM with 64 bit ICV
  • 128 bit AES-GCM with 96 bit ICV
  • 192 bit AES-GCM with 96 bit ICV
  • 256 bit AES-GCM with 96 bit ICV
  • 128 bit AES-GCM with 128 bit ICV
  • 192 bit AES-GCM with 128 bit ICV
  • 256 bit AES-GCM with 128 bit ICV
  • Null Encryption
  • Null Encryption with 128 bit AES-GMAC
  • Null Encryption with 192 bit AES-GMAC
  • Null Encryption with 256 bit AES-GMAC
  • 128 bit Camellia-CBC
  • 192 bit Camellia-CBC
  • 256 bit Camellia-CBC
  • 128 bit CAST-CBC
  • 128 bit Camellia-COUNTER
  • 192 bit Camellia-COUNTER
  • 256 bit Camellia-COUNTER
  • 128 bit Camellia-CCM with 64 bit ICV
  • 192 bit Camellia-CCM with 64 bit ICV
  • 256 bit Camellia-CCM with 64 bit ICV
  • 128 bit Camellia-CCM with 96 bit ICV
  • 192 bit Camellia-CCM with 96 bit ICV
  • 256 bit Camellia-CCM with 96 bit ICV
  • 128 bit Camellia-CCM with 128 bit ICV
  • 192 bit Camellia-CCM with 128 bit ICV
  • 256 bit Camellia-CCM with 128 bit ICV
  • 256 bit ChaCha20/Poly1305 with 128 bit ICV
Integrity Algorithm
  • 96-bit MD5 HMAC
  • 128-bit MD5 HMAC
  • 96-bit SHA1 HMAC
  • 160-bit SHA1_160 HMAC
  • 96-bit AES XCBC
  • 96-bit AES CMAC
  • 128-bit AES-GMAC
  • 192-bit AES-GMAC
  • 256-bit AES-GMAC
  • 128-bit SHA2_256 HMAC
  • 192-bit SHA2_384 HMAC
  • 256-bit SHA2_512 HMAC
  • 96-bit SHA2_256_96 HMAC
  • 96-bit MD5 PRF
  • 96-bit SHA1 PRF
  • 96-bit AES XCBC PRF
  • 96-bit AES CMAC PRF
  • 128-bit SHA2_256 PRF
  • 192-bit SHA2_384 PRF
  • 256-bit SHA2_512 PRF
DH Group
  • 768-bit group
  • 1024-bit group
  • 1536-bit group
  • 2048-bit group
  • 3072-bit group
  • 4096-bit group
  • 6144-bit group
  • 8192-bit group
  • 192-bit elliptic curve group
  • 224-bit elliptic curve group
  • 256-bit elliptic curve group
  • 384-bit elliptic curve group
  • 521-bit elliptic curve group
  • 1024-bit prime group with 160-bit subgroup
  • 2048-bit prime group with 224-bit subgroup
  • 2048-bit prime group with 256-bit subgroup
  • 224-bit brainpool elliptic curve group
  • 256-bit brainpool elliptic curve group
  • 384-bit brainpool elliptic curve group
  • 512-bit brainpool elliptic curve group
  • 256-bit elliptic curve 25519 group
  • 448-bit elliptic curve 25519 group
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