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Created attachment 946946 [details] Test Log Description of problem: While testing TAHI IKEv2.EN.I.1.1.6.2: Cryptographic Algorithm Negotiation for CHILD_SA, Part D: Integrity Algorithm AUTH_AES_XCBC_96 (ADVANCED). We got INTEG_NONE instead of INTEG_AES_XCBC_96 in IKE_AUTH request. Version-Release number of selected component (if applicable): libreswan-3.10-2.el7.x86_64 How reproducible: Steps to Reproduce: NUT TN1 (End-Node) (End-Node) | | |------------------->| IKE_SA_INIT request (HDR, SAi1, KEi, Ni) | | (Judgement #1) |<-------------------| IKE_SA_INIT Response (HDR, SAr1, KEr, Nr) | | (Packet #1) | | |------------------->| IKE_AUTH request (HDR, SK {IDi, AUTH, N, SAi2, TSi, TSr}) | | (Judgement #2) |<-------------------| IKE_AUTH Response (HDR, SK {IDr, AUTH, N, SAr2, TSi, TSr}) | | (Packet #2) | | # cat -n /etc/ipsec.conf config setup protostack=netkey plutostderrlog="/tmp/pluto.log" klipsdebug=verbose conn ikev2 left=2001:0db8:0001:0001::1234 right=2001:0db8:000f:0001::1 leftid=2001:0db8:0001:0001::1234 rightid=2001:0db8:000f:0001::1 type=transport auto=start connaddrfamily=ipv6 authby=secret phase2=esp phase2alg=3des-aes_xcbc ike=3des-sha1;modp1024 ikev2=insist Actual results: NG INTEG: (received:INTEG_NONE, expected:INTEG_AES_XCBC_96) Expected results: OK INTEG: (received:INTEG_AES_XCBC_96, expected:INTEG_AES_XCBC_96) Additional info: