Hi,
Anvar this is log from android :
Nov 7 15:39:12 00[DMN] Starting IKE charon daemon (strongSwan 5.6.0, Android 8.0.0 - OPR4.170623.009/2017-10-05, Nexus 5X - google/bullhead/LGE, Linux 3.10.73-ga51b1600b7f8, aarch64) Nov 7 15:39:12 00[LIB] loaded plugins: androidbridge charon android-log openssl fips-prf random nonce pubkey chapoly curve25519 pkcs1 pkcs8 pem xcbc hmac socket-default revocation eap-identity eap-mschapv2 eap-md5 eap-gtc eap-tls x509

curve25519 loaded

but on server, charon didn't loading curve so i loaded, and android can connect now.

Thanks for help
Rafał


W dniu 2017-11-07 o 20:22, Anvar Kuchkartaev pisze:
As far as I know android clients are not supported curve25519.

Anvar Kuchkartaev
[email protected]
*From: *Rafał Sanocki
*Sent: *martes, 7 de noviembre de 2017 05:19 p.m.
*To: *[email protected]
*Subject: *[strongSwan] CURVE_25519 inacceptable


Hi,

I try connect client :
strongSwan 5.6.0, Android 8.0.0 - OPR4.170623.009/2017-10-05, Nexus 5X - google/bullhead/LGE, Linux 3.10.73-ga51b1600b7f8, aarch64

server:
 ipsec version Linux strongSwan U5.6.0/K4.13.2

connection type

conn vpn-ikev2
keyexchange=ikev2
        type=transport
        left=13.41.7.54
        leftcert=proxu.s.cert
[email protected]
        right=%any
        rightca=@#0b:c3:d4:33:....
        authby=rsasig
        keyingtries=%forever
        leftsubnet=0.0.0.0/0
        rightdns=192.168.0.2
        rightrsasigkey=%cert

conn vpn-ikev2-android
<------>also="vpn-ikev2"
        rightid="C=PL, ST=Malopolska, O=Test, OU=Sec man, [email protected], [email protected]"
        auto=add
        rightsourceip=192.168.0.100/32


Windows clients can connect well, but when android trying i have error in logs

charon: 10[IKE] DH group CURVE_25519 inacceptable, requesting CURVE_25519

what that mean curve_25519 != curve_25519??


Every helpful hint would be highly appreciated.
Rafał






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