Hi,

in /etc/ipsec.conf I have the following configured:

ike active esp from 192.168.14.12/24 to 172.22.34.0/16 \
       local $our_gw peer $remote1_gw \
       main auth hmac-sha2-256 enc 3des group grp2 \
       quick auth hmac-sha2-256 enc aes group modp1024 \
       psk "AKey"


ike active esp from { 192.168.10.0/23 } to { 111.173.28.0/20, 
10.128.22.0/23 } \
        local $our_gw peer $remote2_gw \
        main auth hmac-md5 enc 3des group grp2 \
        quick auth hmac-md5 enc aes group none \
        psk "Anotherkey"


when I start 
isakmpd -K -c /etc/isakmpd/isakmpd.conf
then the first tunnel is established, but for the second, I see the 
following in the logs:

180727.337795 SA   60 sa_create: sa 0x89e9e600 phase 1 added to exchange 
0x89e9e100 (Default-phase-1)
180727.337805 Mesg 50 message_parse_payloads: offset 40 payload PROPOSAL
180727.337814 Mesg 50 message_parse_payloads: offset 48 payload TRANSFORM
180727.337823 Mesg 50 Transform 1's attributes
180727.337833 Mesg 50 Attribute ENCRYPTION_ALGORITHM value 5
180727.337842 Mesg 50 Attribute HASH_ALGORITHM value 1
180727.337850 Mesg 50 Attribute AUTHENTICATION_METHOD value 1
180727.337858 Mesg 50 Attribute GROUP_DESCRIPTION value 2
180727.337867 Mesg 50 Attribute LIFE_TYPE value 1
180727.337876 Mesg 50 Attribute LIFE_DURATION value 28800
180727.337915 Mesg 60 message_validate_payloads: payload PROPOSAL at 
0x82e87ca8 of message 0x82e87700
180727.337927 Mesg 70 NO: 1
180727.337936 Mesg 70 PROTO: ISAKMP
180727.337947 Mesg 70 SPI_SZ: 0
180727.337958 Mesg 70 NTRANSFORMS: 1
180727.337967 Mesg 70 SPI:
180727.337977 Mesg 60 message_validate_payloads: payload TRANSFORM at 
0x82e87cb0 of message 0x82e87700
180727.337987 Mesg 70 NO: 1
180727.337997 Mesg 70 ID: 1
180727.338005 Mesg 70 SA_ATTRS:
180727.338017 Mesg 60 message_validate_payloads: payload VENDOR at 
0x82e87cd4 of message 0x82e87700
180727.338026 Mesg 70 ID:
180727.338036 Exch 50 nat_t_check_vendor_payload: bad size 40 != 16
180727.338046 Exch 50 nat_t_check_vendor_payload: bad size 40 != 16
180727.338055 Exch 50 nat_t_check_vendor_payload: bad size 40 != 16
180727.338064 Mesg 40 message_validate_vendor: vendor ID seen
180727.338075 Misc 30 ipsec_responder: phase 1 exchange 2 step 0
180727.338087 Cryp 60 hash_get: requested algorithm 0
180727.338155 Negt 30 message_negotiate_sa: transform 1 proto 1 proposal 1 
ok
180727.338179 Negt 70 attribute_unacceptable: HASH_ALGORITHM: got MD5, 
expected SHA
180727.338190 Negt 20 ike_phase_1_validate_prop: failure
180727.338201 Negt 30 message_negotiate_sa: proposal 1 failed
180727.338210 Default message_negotiate_sa: no compatible proposal found


When I switch the statements in /etc/ipsec.conf then both tunnels get 
established and are working fine. Is there any explanation for this 
behaviour? I have OpenBSD 4.1 running.

kind regards
Sebastian

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