Thanks for the reply and suggestion Martin.
Now the tunnel cycles constantly between created > connected > established > deleted > destroying. After some changes to peer side, IKE (3des-sh1-hmac 160) and ESP (3des-md5) have changed since I first wrote to the list. All suggestions greatly appreciated ! Log output with (charondebug = “dmn 2,mgr 2,ike 2,chd 2,job 1,cfg 2,knl 1,net 1,tls 1,lib 1,enc 1,tnc 1,imv 1”): May 9 16:56:11 ip-10-18-0-43 charon: 00[DMN] Starting IKE charon daemon (strongSwan 5.1.2, Linux 3.13.0-24-generic, x86_64) May 9 16:56:11 ip-10-18-0-43 charon: 00[CFG] loading ca certificates from '/etc/ipsec.d/cacerts' May 9 16:56:11 ip-10-18-0-43 charon: 00[CFG] loading aa certificates from '/etc/ipsec.d/aacerts' May 9 16:56:11 ip-10-18-0-43 charon: 00[CFG] loading ocsp signer certificates from '/etc/ipsec.d/ocspcerts' May 9 16:56:11 ip-10-18-0-43 charon: 00[CFG] loading attribute certificates from '/etc/ipsec.d/acerts' May 9 16:56:11 ip-10-18-0-43 charon: 00[CFG] loading crls from '/etc/ipsec.d/crls' May 9 16:56:11 ip-10-18-0-43 charon: 00[CFG] loading secrets from '/etc/ipsec.secrets' May 9 16:56:11 ip-10-18-0-43 charon: 00[CFG] loaded IKE secret for PEER_EXTERNAL_IP MY_EXTERNAL_IP May 9 16:56:11 ip-10-18-0-43 charon: 00[LIB] loaded plugins: charon test-vectors aes rc2 sha1 sha2 md4 md5 random nonce x509 revocation constraints pkcs1 pkcs7 pkcs8 pkcs12 pem openssl xcbc cmac hmac ctr ccm gcm attr kernel-netlink resolve socket-default stroke updown eap-identity addrblock May 9 16:56:11 ip-10-18-0-43 charon: 00[LIB] unable to load 5 plugin features (5 due to unmet dependencies) May 9 16:56:11 ip-10-18-0-43 charon: 00[LIB] dropped capabilities, running as uid 0, gid 0 May 9 16:56:11 ip-10-18-0-43 charon: 00[JOB] spawning 16 worker threads May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] received stroke: add connection 'test_conn' May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] conn test_conn May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] left=10.18.0.43 May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] leftsubnet=EXTERNAL_IP_OF_HOST_EXPOSED_TO_GATEWAY/32 May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] leftsourceip=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] leftdns=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] leftauth=psk May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] leftauth2=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] leftid=MY_EXTERNAL_IP May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] leftid2=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] leftrsakey=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] leftcert=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] leftcert2=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] leftca=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] leftca2=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] leftgroups=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] leftgroups2=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] leftupdown=ipsec _updown iptables May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] right=PEER_EXTERNAL_IP May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] rightsubnet=EXTERNAL_IP_THEM_1/32,EXTERNAL_IP_THEM_2/32,EXTERNAL_IP_THEM_3/32,EXTERNAL_IP_THEM_4/32,EXTERNAL_IP_THEM_5/32,EXTERNAL_IP_THEM_6/32,EXTERNAL_IP_THEM_7/32,EXTERNAL_IP_THEM_8/32 May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] rightsourceip=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] rightdns=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] rightauth=psk May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] rightauth2=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] rightid=PEER_EXTERNAL_IP May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] rightid2=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] rightrsakey=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] rightcert=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] rightcert2=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] rightca=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] rightca2=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] rightgroups=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] rightgroups2=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] rightupdown=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] eap_identity=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] aaa_identity=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] xauth_identity=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] ike=3des-sha1-modp1024! May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] esp=3des-md5! May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] ah=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] dpddelay=60 May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] dpdtimeout=180 May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] dpdaction=1 May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] closeaction=0 May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] mediation=no May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] mediated_by=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] me_peerid=(null) May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] keyexchange=ikev1 May 9 16:56:11 ip-10-18-0-43 charon: 09[CFG] added configuration 'test_conn' May 9 16:56:11 ip-10-18-0-43 charon: 11[CFG] received stroke: initiate 'test_conn' May 9 16:56:11 ip-10-18-0-43 charon: 11[MGR] checkout IKE_SA by config May 9 16:56:11 ip-10-18-0-43 charon: 11[MGR] created IKE_SA (unnamed)[1] May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] queueing ISAKMP_VENDOR task May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] queueing ISAKMP_CERT_PRE task May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] queueing MAIN_MODE task May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] queueing ISAKMP_CERT_POST task May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] queueing ISAKMP_NATD task May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] queueing QUICK_MODE task May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] activating new tasks May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] activating ISAKMP_VENDOR task May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] activating ISAKMP_CERT_PRE task May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] activating MAIN_MODE task May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] activating ISAKMP_CERT_POST task May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] activating ISAKMP_NATD task May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] sending XAuth vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] sending DPD vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] sending FRAGMENTATION vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] sending NAT-T (RFC 3947) vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] sending draft-ietf-ipsec-nat-t-ike-02\n vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] initiating Main Mode IKE_SA test_conn[1] to PEER_EXTERNAL_IP May 9 16:56:11 ip-10-18-0-43 charon: 11[IKE] IKE_SA test_conn[1] state change: CREATED => CONNECTING May 9 16:56:11 ip-10-18-0-43 charon: 11[CFG] configured proposals: IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 May 9 16:56:11 ip-10-18-0-43 charon: 11[ENC] generating ID_PROT request 0 [ SA V V V V V ] May 9 16:56:11 ip-10-18-0-43 charon: 11[NET] sending packet: from 10.18.0.43[500] to PEER_EXTERNAL_IP[500] (180 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 11[MGR] checkin IKE_SA test_conn[1] May 9 16:56:11 ip-10-18-0-43 charon: 12[MGR] checkout IKE_SA by message May 9 16:56:11 ip-10-18-0-43 charon: 12[MGR] IKE_SA test_conn[1] successfully checked out May 9 16:56:11 ip-10-18-0-43 charon: 12[NET] received packet: from PEER_EXTERNAL_IP[500] to 10.18.0.43[500] (128 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 12[ENC] parsed ID_PROT response 0 [ SA V V ] May 9 16:56:11 ip-10-18-0-43 charon: 12[IKE] received draft-ietf-ipsec-nat-t-ike-02\n vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 12[IKE] received FRAGMENTATION vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 12[CFG] selecting proposal: May 9 16:56:11 ip-10-18-0-43 charon: 12[CFG] proposal matches May 9 16:56:11 ip-10-18-0-43 charon: 12[CFG] received proposals: IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 May 9 16:56:11 ip-10-18-0-43 charon: 12[CFG] configured proposals: IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 May 9 16:56:11 ip-10-18-0-43 charon: 12[CFG] selected proposal: IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 May 9 16:56:11 ip-10-18-0-43 charon: 12[IKE] reinitiating already active tasks May 9 16:56:11 ip-10-18-0-43 charon: 12[IKE] ISAKMP_VENDOR task May 9 16:56:11 ip-10-18-0-43 charon: 12[IKE] MAIN_MODE task May 9 16:56:11 ip-10-18-0-43 charon: 12[ENC] generating ID_PROT request 0 [ KE No NAT-D NAT-D ] May 9 16:56:11 ip-10-18-0-43 charon: 12[NET] sending packet: from 10.18.0.43[500] to PEER_EXTERNAL_IP[500] (244 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 12[MGR] checkin IKE_SA test_conn[1] May 9 16:56:11 ip-10-18-0-43 charon: 12[MGR] check-in of IKE_SA successful. May 9 16:56:11 ip-10-18-0-43 charon: 13[MGR] checkout IKE_SA by message May 9 16:56:11 ip-10-18-0-43 charon: 13[MGR] IKE_SA test_conn[1] successfully checked out May 9 16:56:11 ip-10-18-0-43 charon: 13[NET] received packet: from PEER_EXTERNAL_IP[500] to 10.18.0.43[500] (304 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 13[ENC] parsed ID_PROT response 0 [ KE No V V V V NAT-D NAT-D ] May 9 16:56:11 ip-10-18-0-43 charon: 13[IKE] received Cisco Unity vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 13[IKE] received XAuth vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 13[ENC] received unknown vendor ID: a7:54:86:dc:45:59:a2:c1:cb:25:bf:c7:94:75:83:ce May 9 16:56:11 ip-10-18-0-43 charon: 13[ENC] received unknown vendor ID: 1f:07:f7:0e:aa:65:14:d3:b0:fa:96:54:2a:50:04:07 May 9 16:56:11 ip-10-18-0-43 charon: 13[IKE] local host is behind NAT, sending keep alives May 9 16:56:11 ip-10-18-0-43 charon: 13[IKE] reinitiating already active tasks May 9 16:56:11 ip-10-18-0-43 charon: 13[IKE] ISAKMP_VENDOR task May 9 16:56:11 ip-10-18-0-43 charon: 13[IKE] MAIN_MODE task May 9 16:56:11 ip-10-18-0-43 charon: 13[ENC] generating ID_PROT request 0 [ ID HASH ] May 9 16:56:11 ip-10-18-0-43 charon: 13[NET] sending packet: from 10.18.0.43[4500] to PEER_EXTERNAL_IP[4500] (68 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 13[MGR] checkin IKE_SA test_conn[1] May 9 16:56:11 ip-10-18-0-43 charon: 13[MGR] check-in of IKE_SA successful. May 9 16:56:11 ip-10-18-0-43 charon: 14[MGR] checkout IKE_SA by message May 9 16:56:11 ip-10-18-0-43 charon: 14[MGR] IKE_SA test_conn[1] successfully checked out May 9 16:56:11 ip-10-18-0-43 charon: 14[NET] received packet: from PEER_EXTERNAL_IP[4500] to 10.18.0.43[4500] (84 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 14[ENC] parsed ID_PROT response 0 [ ID HASH V ] May 9 16:56:11 ip-10-18-0-43 charon: 14[IKE] received DPD vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 14[IKE] IKE_SA test_conn[1] established between 10.18.0.43[MY_EXTERNAL_IP]...PEER_EXTERNAL_IP[PEER_EXTERNAL_IP] May 9 16:56:11 ip-10-18-0-43 charon: 14[IKE] IKE_SA test_conn[1] state change: CONNECTING => ESTABLISHED May 9 16:56:11 ip-10-18-0-43 charon: 14[IKE] scheduling rekeying in 86055s May 9 16:56:11 ip-10-18-0-43 charon: 14[IKE] maximum IKE_SA lifetime 86235s May 9 16:56:11 ip-10-18-0-43 charon: 14[IKE] activating new tasks May 9 16:56:11 ip-10-18-0-43 charon: 14[IKE] activating QUICK_MODE task May 9 16:56:11 ip-10-18-0-43 charon: 14[CFG] configured proposals: ESP:3DES_CBC/HMAC_MD5_96/NO_EXT_SEQ May 9 16:56:11 ip-10-18-0-43 charon: 15[MGR] checkout IKE_SA by message May 9 16:56:11 ip-10-18-0-43 charon: 14[CFG] configured proposals: ESP:3DES_CBC/HMAC_MD5_96/NO_EXT_SEQ May 9 16:56:11 ip-10-18-0-43 charon: 14[CFG] proposing traffic selectors for us: May 9 16:56:11 ip-10-18-0-43 charon: 14[CFG] EXTERNAL_IP_OF_HOST_EXPOSED_TO_GATEWAY/32 May 9 16:56:11 ip-10-18-0-43 charon: 14[CFG] proposing traffic selectors for other: May 9 16:56:11 ip-10-18-0-43 charon: 14[CFG] EXTERNAL_IP_THEM_1/32 May 9 16:56:11 ip-10-18-0-43 charon: 14[CFG] EXTERNAL_IP_THEM_2/32 May 9 16:56:11 ip-10-18-0-43 charon: 14[CFG] EXTERNAL_IP_THEM_3/32 May 9 16:56:11 ip-10-18-0-43 charon: 14[CFG] EXTERNAL_IP_THEM_4/32 May 9 16:56:11 ip-10-18-0-43 charon: 14[CFG] EXTERNAL_IP_THEM_5/32 May 9 16:56:11 ip-10-18-0-43 charon: 14[CFG] EXTERNAL_IP_THEM_6/32 May 9 16:56:11 ip-10-18-0-43 charon: 14[CFG] EXTERNAL_IP_THEM_7/32 May 9 16:56:11 ip-10-18-0-43 charon: 14[CFG] EXTERNAL_IP_THEM_8/32 May 9 16:56:11 ip-10-18-0-43 charon: 14[ENC] generating QUICK_MODE request 1036177768 [ HASH SA No ID ID ] May 9 16:56:11 ip-10-18-0-43 charon: 14[NET] sending packet: from 10.18.0.43[4500] to PEER_EXTERNAL_IP[4500] (164 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 14[MGR] checkin IKE_SA test_conn[1] May 9 16:56:11 ip-10-18-0-43 charon: 14[MGR] check-in of IKE_SA successful. May 9 16:56:11 ip-10-18-0-43 charon: 15[MGR] IKE_SA test_conn[1] successfully checked out May 9 16:56:11 ip-10-18-0-43 charon: 15[NET] received packet: from PEER_EXTERNAL_IP[4500] to 10.18.0.43[4500] (92 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 15[ENC] parsed INFORMATIONAL_V1 request 2780168895 [ HASH N((24576)) ] May 9 16:56:11 ip-10-18-0-43 charon: 15[IKE] received (24576) notify May 9 16:56:11 ip-10-18-0-43 charon: 15[MGR] checkin IKE_SA test_conn[1] May 9 16:56:11 ip-10-18-0-43 charon: 15[MGR] check-in of IKE_SA successful. May 9 16:56:11 ip-10-18-0-43 charon: 03[MGR] checkout IKE_SA by message May 9 16:56:11 ip-10-18-0-43 charon: 03[MGR] IKE_SA test_conn[1] successfully checked out May 9 16:56:11 ip-10-18-0-43 charon: 03[NET] received packet: from PEER_EXTERNAL_IP[4500] to 10.18.0.43[4500] (84 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 03[ENC] parsed INFORMATIONAL_V1 request 1584107308 [ HASH D ] May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] received DELETE for IKE_SA test_conn[1] May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] deleting IKE_SA test_conn[1] between 10.18.0.43[MY_EXTERNAL_IP]...PEER_EXTERNAL_IP[PEER_EXTERNAL_IP] May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] IKE_SA test_conn[1] state change: ESTABLISHED => DELETING May 9 16:56:11 ip-10-18-0-43 charon: 03[MGR] created IKE_SA (unnamed)[2] May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] queueing ISAKMP_VENDOR task May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] queueing ISAKMP_CERT_PRE task May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] queueing MAIN_MODE task May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] queueing ISAKMP_CERT_POST task May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] queueing ISAKMP_NATD task May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] activating new tasks May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] activating ISAKMP_VENDOR task May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] activating ISAKMP_CERT_PRE task May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] activating MAIN_MODE task May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] activating ISAKMP_CERT_POST task May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] activating ISAKMP_NATD task May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] sending XAuth vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] sending DPD vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] sending FRAGMENTATION vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] sending NAT-T (RFC 3947) vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] sending draft-ietf-ipsec-nat-t-ike-02\n vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] initiating Main Mode IKE_SA test_conn[2] to PEER_EXTERNAL_IP May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] IKE_SA test_conn[2] state change: CREATED => CONNECTING May 9 16:56:11 ip-10-18-0-43 charon: 03[CFG] configured proposals: IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 May 9 16:56:11 ip-10-18-0-43 charon: 03[ENC] generating ID_PROT request 0 [ SA V V V V V ] May 9 16:56:11 ip-10-18-0-43 charon: 03[NET] sending packet: from 10.18.0.43[500] to PEER_EXTERNAL_IP[500] (180 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 03[MGR] checkin IKE_SA test_conn[2] May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] IKE_SA test_conn[1] state change: DELETING => DELETING May 9 16:56:11 ip-10-18-0-43 charon: 03[MGR] checkin and destroy IKE_SA test_conn[1] May 9 16:56:11 ip-10-18-0-43 charon: 03[IKE] IKE_SA test_conn[1] state change: DELETING => DESTROYING May 9 16:56:11 ip-10-18-0-43 charon: 03[MGR] check-in and destroy of IKE_SA successful May 9 16:56:11 ip-10-18-0-43 charon: 16[MGR] checkout IKE_SA by message May 9 16:56:11 ip-10-18-0-43 charon: 16[MGR] IKE_SA test_conn[2] successfully checked out May 9 16:56:11 ip-10-18-0-43 charon: 16[NET] received packet: from PEER_EXTERNAL_IP[500] to 10.18.0.43[500] (128 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 16[ENC] parsed ID_PROT response 0 [ SA V V ] May 9 16:56:11 ip-10-18-0-43 charon: 16[IKE] received draft-ietf-ipsec-nat-t-ike-02\n vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 16[IKE] received FRAGMENTATION vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 16[CFG] selecting proposal: May 9 16:56:11 ip-10-18-0-43 charon: 16[CFG] proposal matches May 9 16:56:11 ip-10-18-0-43 charon: 16[CFG] received proposals: IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 May 9 16:56:11 ip-10-18-0-43 charon: 16[CFG] configured proposals: IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 May 9 16:56:11 ip-10-18-0-43 charon: 16[CFG] selected proposal: IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 May 9 16:56:11 ip-10-18-0-43 charon: 16[IKE] reinitiating already active tasks May 9 16:56:11 ip-10-18-0-43 charon: 16[IKE] ISAKMP_VENDOR task May 9 16:56:11 ip-10-18-0-43 charon: 16[IKE] MAIN_MODE task May 9 16:56:11 ip-10-18-0-43 charon: 16[ENC] generating ID_PROT request 0 [ KE No NAT-D NAT-D ] May 9 16:56:11 ip-10-18-0-43 charon: 16[NET] sending packet: from 10.18.0.43[500] to PEER_EXTERNAL_IP[500] (244 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 16[MGR] checkin IKE_SA test_conn[2] May 9 16:56:11 ip-10-18-0-43 charon: 16[MGR] check-in of IKE_SA successful. May 9 16:56:11 ip-10-18-0-43 charon: 02[MGR] checkout IKE_SA by message May 9 16:56:11 ip-10-18-0-43 charon: 02[MGR] IKE_SA test_conn[2] successfully checked out May 9 16:56:11 ip-10-18-0-43 charon: 02[NET] received packet: from PEER_EXTERNAL_IP[500] to 10.18.0.43[500] (304 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 02[ENC] parsed ID_PROT response 0 [ KE No V V V V NAT-D NAT-D ] May 9 16:56:11 ip-10-18-0-43 charon: 02[IKE] received Cisco Unity vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 02[IKE] received XAuth vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 02[ENC] received unknown vendor ID: 92:ff:e0:d3:c3:d2:2d:39:63:a7:e0:94:fc:50:f5:30 May 9 16:56:11 ip-10-18-0-43 charon: 02[ENC] received unknown vendor ID: 1f:07:f7:0e:aa:65:14:d3:b0:fa:96:54:2a:50:04:07 May 9 16:56:11 ip-10-18-0-43 charon: 02[IKE] local host is behind NAT, sending keep alives May 9 16:56:11 ip-10-18-0-43 charon: 02[IKE] reinitiating already active tasks May 9 16:56:11 ip-10-18-0-43 charon: 02[IKE] ISAKMP_VENDOR task May 9 16:56:11 ip-10-18-0-43 charon: 02[IKE] MAIN_MODE task May 9 16:56:11 ip-10-18-0-43 charon: 02[ENC] generating ID_PROT request 0 [ ID HASH ] May 9 16:56:11 ip-10-18-0-43 charon: 02[NET] sending packet: from 10.18.0.43[4500] to PEER_EXTERNAL_IP[4500] (68 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 02[MGR] checkin IKE_SA test_conn[2] May 9 16:56:11 ip-10-18-0-43 charon: 02[MGR] check-in of IKE_SA successful. May 9 16:56:11 ip-10-18-0-43 charon: 01[MGR] checkout IKE_SA by message May 9 16:56:11 ip-10-18-0-43 charon: 01[MGR] IKE_SA test_conn[2] successfully checked out May 9 16:56:11 ip-10-18-0-43 charon: 01[NET] received packet: from PEER_EXTERNAL_IP[4500] to 10.18.0.43[4500] (84 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 01[ENC] parsed ID_PROT response 0 [ ID HASH V ] May 9 16:56:11 ip-10-18-0-43 charon: 01[IKE] received DPD vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 01[IKE] IKE_SA test_conn[2] established between 10.18.0.43[MY_EXTERNAL_IP]...PEER_EXTERNAL_IP[PEER_EXTERNAL_IP] May 9 16:56:11 ip-10-18-0-43 charon: 01[IKE] IKE_SA test_conn[2] state change: CONNECTING => ESTABLISHED May 9 16:56:11 ip-10-18-0-43 charon: 01[IKE] scheduling rekeying in 86199s May 9 16:56:11 ip-10-18-0-43 charon: 01[IKE] maximum IKE_SA lifetime 86379s May 9 16:56:11 ip-10-18-0-43 charon: 01[IKE] activating new tasks May 9 16:56:11 ip-10-18-0-43 charon: 01[IKE] activating QUICK_MODE task May 9 16:56:11 ip-10-18-0-43 charon: 01[CFG] configured proposals: ESP:3DES_CBC/HMAC_MD5_96/NO_EXT_SEQ May 9 16:56:11 ip-10-18-0-43 charon: 01[CFG] configured proposals: ESP:3DES_CBC/HMAC_MD5_96/NO_EXT_SEQ May 9 16:56:11 ip-10-18-0-43 charon: 10[MGR] checkout IKE_SA by message May 9 16:56:11 ip-10-18-0-43 charon: 01[CFG] proposing traffic selectors for us: May 9 16:56:11 ip-10-18-0-43 charon: 01[CFG] EXTERNAL_IP_OF_HOST_EXPOSED_TO_GATEWAY/32 May 9 16:56:11 ip-10-18-0-43 charon: 01[CFG] proposing traffic selectors for other: May 9 16:56:11 ip-10-18-0-43 charon: 01[CFG] EXTERNAL_IP_THEM_1/32 May 9 16:56:11 ip-10-18-0-43 charon: 01[CFG] EXTERNAL_IP_THEM_2/32 May 9 16:56:11 ip-10-18-0-43 charon: 01[CFG] EXTERNAL_IP_THEM_3/32 May 9 16:56:11 ip-10-18-0-43 charon: 01[CFG] EXTERNAL_IP_THEM_4/32 May 9 16:56:11 ip-10-18-0-43 charon: 01[CFG] EXTERNAL_IP_THEM_5/32 May 9 16:56:11 ip-10-18-0-43 charon: 01[CFG] EXTERNAL_IP_THEM_6/32 May 9 16:56:11 ip-10-18-0-43 charon: 01[CFG] EXTERNAL_IP_THEM_7/32 May 9 16:56:11 ip-10-18-0-43 charon: 01[CFG] EXTERNAL_IP_THEM_8/32 May 9 16:56:11 ip-10-18-0-43 charon: 01[ENC] generating QUICK_MODE request 359184547 [ HASH SA No ID ID ] May 9 16:56:11 ip-10-18-0-43 charon: 01[NET] sending packet: from 10.18.0.43[4500] to PEER_EXTERNAL_IP[4500] (164 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 01[MGR] checkin IKE_SA test_conn[2] May 9 16:56:11 ip-10-18-0-43 charon: 01[MGR] check-in of IKE_SA successful. May 9 16:56:11 ip-10-18-0-43 charon: 10[MGR] IKE_SA test_conn[2] successfully checked out May 9 16:56:11 ip-10-18-0-43 charon: 10[NET] received packet: from PEER_EXTERNAL_IP[4500] to 10.18.0.43[4500] (92 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 10[ENC] parsed INFORMATIONAL_V1 request 3157575994 [ HASH N((24576)) ] May 9 16:56:11 ip-10-18-0-43 charon: 10[IKE] received (24576) notify May 9 16:56:11 ip-10-18-0-43 charon: 10[MGR] checkin IKE_SA test_conn[2] May 9 16:56:11 ip-10-18-0-43 charon: 10[MGR] check-in of IKE_SA successful. May 9 16:56:11 ip-10-18-0-43 charon: 04[MGR] checkout IKE_SA by message May 9 16:56:11 ip-10-18-0-43 charon: 04[MGR] IKE_SA test_conn[2] successfully checked out May 9 16:56:11 ip-10-18-0-43 charon: 04[NET] received packet: from PEER_EXTERNAL_IP[4500] to 10.18.0.43[4500] (84 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 04[ENC] parsed INFORMATIONAL_V1 request 3652496246 [ HASH D ] May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] received DELETE for IKE_SA test_conn[2] May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] deleting IKE_SA test_conn[2] between 10.18.0.43[MY_EXTERNAL_IP]...PEER_EXTERNAL_IP[PEER_EXTERNAL_IP] May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] IKE_SA test_conn[2] state change: ESTABLISHED => DELETING May 9 16:56:11 ip-10-18-0-43 charon: 04[MGR] created IKE_SA (unnamed)[3] May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] queueing ISAKMP_VENDOR task May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] queueing ISAKMP_CERT_PRE task May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] queueing MAIN_MODE task May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] queueing ISAKMP_CERT_POST task May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] queueing ISAKMP_NATD task May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] activating new tasks May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] activating ISAKMP_VENDOR task May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] activating ISAKMP_CERT_PRE task May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] activating MAIN_MODE task May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] activating ISAKMP_CERT_POST task May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] activating ISAKMP_NATD task May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] sending XAuth vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] sending DPD vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] sending FRAGMENTATION vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] sending NAT-T (RFC 3947) vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] sending draft-ietf-ipsec-nat-t-ike-02\n vendor ID May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] initiating Main Mode IKE_SA test_conn[3] to PEER_EXTERNAL_IP May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] IKE_SA test_conn[3] state change: CREATED => CONNECTING May 9 16:56:11 ip-10-18-0-43 charon: 04[CFG] configured proposals: IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 May 9 16:56:11 ip-10-18-0-43 charon: 04[ENC] generating ID_PROT request 0 [ SA V V V V V ] May 9 16:56:11 ip-10-18-0-43 charon: 04[NET] sending packet: from 10.18.0.43[500] to PEER_EXTERNAL_IP[500] (180 bytes) May 9 16:56:11 ip-10-18-0-43 charon: 04[MGR] checkin IKE_SA test_conn[3] May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] IKE_SA test_conn[2] state change: DELETING => DELETING May 9 16:56:11 ip-10-18-0-43 charon: 04[MGR] checkin and destroy IKE_SA test_conn[2] May 9 16:56:11 ip-10-18-0-43 charon: 04[IKE] IKE_SA test_conn[2] state change: DELETING => DESTROYING May 9 16:56:11 ip-10-18-0-43 charon: 04[MGR] check-in and destroy of IKE_SA successful May 9 16:56:11 ip-10-18-0-43 charon: 11[MGR] checkout IKE_SA by message May 9 16:56:11 ip-10-18-0-43 charon: 11[MGR] IKE_SA test_conn[3] successfully checked out On May 8, 2014, at 11:37 PM, Martin Willi <[email protected]> wrote: > Ted, > >> I am struggling to successfully connect to a Cisco VPN 3000 >> Concentrator > >> leftsubnet=xx.xx.xx.238/32,xx.xx.xx.255/32 >> leftsourceip=%config > > Is it your intention to request a virtual IP, even if you are doing > net-to-net tunneling? Usually virtual IPs are used by road-warriors, > clients that should be integrated to the local network. > >> modeconfig=push > > Please be aware that push mode has not been supported until 5.1.1. > >> The security association is established however the connection doesn’t >> appear to get fully established, getting stuck on QUICK_MODE. > > A log output would certainly help to see what is going on and why the > Quick Mode doesn't proceed. > > Regards > Martin > _______________________________________________ Users mailing list [email protected] https://lists.strongswan.org/mailman/listinfo/users
