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matching security policies with Cisco <> Strongswan

from88
Level 4
Level 4

Hello,

 

On strongswan side we need to use GCM cipher:

like these:

ike=aes128gcm8-aesxcbc-modp1024
esp=aes128gcm8

so on Cisco side im adding this line:

crypto ipsec transform-set TEST_STRONGSWAN_TRANSFORM_SET esp-gcm 
mode tunnel

 

and hope to see a match.

But the strange thing that on Strongswan side, i dont see received proposals with "esp-gcm's".

Tried to shutdown the tunnel and turn up again, on Cisco but no difference, i always receive same old proposals:

 

Apr 8 14:41:45 netvpn001prpjay charon: 06[CFG] received proposals: IKE:AES_CBC_128/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024
Apr 8 14:41:45 netvpn001prpjay charon: 06[CFG] configured proposals: IKE:AES_GCM_16_128/PRF_AES128_XCBC/MODP_1024, IKE:AES_CBC_128/AES_CBC_192/AES_CBC_256/AES_CTR_128/AES_CTR_192/AES_CTR_256/CAMELLIA_CBC_128/CAMELLIA_CBC_192/CAMELLIA_CBC_256/CAMELLIA_CTR_128/CAMELLIA_CTR_192/CAMELLIA_CTR_256/3DES_CBC/HMAC_SHA2_256_128/HMAC_SHA2_384_192/HMAC_SHA2_512_256/AES_XCBC_96/AES_CMAC_96/HMAC_SHA1_96/PRF_AES128_XCBC/PRF_AES128_CMAC/PRF_HMAC_SHA2_256/PRF_HMAC_SHA2_384/PRF_HMAC_SHA2_512/PRF_HMAC_SHA1/ECP_256/ECP_384/ECP_521/ECP_256_BP/ECP_384_BP/ECP_512_BP/CURVE_25519/MODP_3072/MODP_4096/MODP_6144/MODP_8192/MODP_2048, IKE:AES_CCM_16_128/AES_CCM_16_192/AES_CCM_16_256/AES_GCM_16_128/AES_GCM_16_192/AES_GCM_16_256/CHACHA20_POLY1305/CAMELLIA_CCM_16_128/CAMELLIA_CCM_16_192/CAMELLIA_CCM_16_256/AES_CCM_8_128/AES_CCM_8_192/AES_CCM_8_256/AES_CCM_12_128/AES_CCM_12_192/AES_CCM_12_256/AES_GCM_8_128/AES_GCM_8_192/AES_GCM_8_256/AES_GCM_12_128/AES_GCM_12_192/AES_GCM_12_256/CAMELLIA_CCM_8_128/CAMELLIA_CCM_8_192/CAMELLIA_CCM_8_256/CAMELLIA_CCM_12_128/CAMELLIA_CCM_12_192/CAMELLIA_CCM_12_256/PRF_AES128_XCBC/PRF_AES128_CMAC/PRF_HMAC_SHA2_256/PRF_HMAC_SHA2_384/PRF_HMAC_SHA2_512/PRF_HMAC_SHA1/ECP_256/ECP_384/ECP_521/ECP_256_BP/ECP_384_BP/ECP_512_BP/CURVE_25519/MODP_3072/MODP_4096/MODP_6144/MODP_8192/MODP_2048
Apr 8 14:41:45 netvpn001prpjay charon: 06[IKE] no proposal found
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