[strongSwan] DH group ECP_256 unacceptable, requesting ECP_256

Houman houmie at gmail.com
Thu Oct 15 17:26:03 CEST 2020


Hey guys,

I figured out my issue this morning. I needed to compile StrongSwan
with --enable-gcm. Now I can use AES256GCM. Pretty sweet.

When I try to use diffieHellmanGroup = group19 on iOS though I get the
following error message on the server.

Oct 15 15:17:03 de-fsn-x charon: 15[CFG] selected proposal:
IKE:AES_GCM_16_256/PRF_HMAC_SHA2_256/ECP_256
Oct 15 15:17:03 de-fsn-x charon: 15[IKE] DH group ECP_256 unacceptable,
requesting ECP_256

Is that another plugin that I need to compile? Why is that DH group
unacceptable?


Many Thanks,
Houman
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