[racoon] ERROR: failed to get sainfo

...
racoon: DEBUG: getsainfo pass #2
racoon: ERROR: failed to get sainfo.

path certificate "/etc/racoon/certs";

remote 1.2.3.4 {
    exchange_mode aggressive,main;
    my_identifier asn1dn;
    peers_identifier asn1dn;
    certificate_type x509 "core.crt" "core.key";
    ca_type x509 "ca-certificates.crt";
    peers_certfile x509 "branch.crt";

    proposal {
        encryption_algorithm aes;
        hash_algorithm sha1;
        authentication_method rsasig;
        dh_group 2;
    }   
}