below is the output with ikev1 set in main mode:
Fri Mar 5 16:40:56 2021 authpriv.info syslog: 16[IKE] initiating Main Mode IKE_SA Movico3[1] to 193.206.192.7
Fri Mar 5 16:40:56 2021 daemon.info syslog: 16[ENC] generating ID_PROT request 0 [ SA V V V V V ]
Fri Mar 5 16:40:56 2021 daemon.info syslog: 16[NET] sending packet: from 10.2.133.65[500] to 193.206.192.7[500] (224 bytes)
Fri Mar 5 16:40:56 2021 daemon.info syslog: 05[NET] received packet: from 193.206.192.7[500] to 10.2.133.65[500] (192 bytes)
Fri Mar 5 16:40:56 2021 daemon.info syslog: 05[ENC] parsed ID_PROT response 0 [ SA V V V V V ]
Fri Mar 5 16:40:56 2021 daemon.info syslog: 05[IKE] received NAT-T (RFC 3947) vendor ID
Fri Mar 5 16:40:56 2021 daemon.info syslog: 05[IKE] received DPD vendor ID
Fri Mar 5 16:40:56 2021 daemon.info syslog: 05[ENC] received unknown vendor ID: 82:99:03:17:57:a3:60:82:c6:a6:21:de:00:00:00:00
Fri Mar 5 16:40:56 2021 daemon.info syslog: 05[IKE] received FRAGMENTATION vendor ID
Fri Mar 5 16:40:56 2021 daemon.info syslog: 05[IKE] received FRAGMENTATION vendor ID
Fri Mar 5 16:40:56 2021 daemon.info syslog: 05[ENC] generating ID_PROT request 0 [ KE No NAT-D NAT-D ]
Fri Mar 5 16:40:56 2021 daemon.info syslog: 05[NET] sending packet: from 10.2.133.65[500] to 193.206.192.7[500] (308 bytes)
Fri Mar 5 16:40:56 2021 daemon.info syslog: 06[NET] received packet: from 193.206.192.7[500] to 10.2.133.65[500] (292 bytes)
Fri Mar 5 16:40:56 2021 daemon.info syslog: 06[ENC] parsed ID_PROT response 0 [ KE No NAT-D NAT-D ]
Fri Mar 5 16:40:56 2021 daemon.info syslog: 06[ENC] generating ID_PROT request 0 [ ID HASH N(INITIAL_CONTACT) ]
Fri Mar 5 16:40:56 2021 daemon.info syslog: 06[NET] sending packet: from 10.2.133.65[4500] to 193.206.192.7[4500] (108 bytes)
Fri Mar 5 16:41:00 2021 daemon.info syslog: 09[IKE] sending retransmit 1 of request message ID 0, seq 3
Fri Mar 5 16:41:00 2021 daemon.info syslog: 09[NET] sending packet: from 10.2.133.65[4500] to 193.206.192.7[4500] (108 bytes)
Fri Mar 5 16:41:07 2021 daemon.info syslog: 11[IKE] sending retransmit 2 of request message ID 0, seq 3
Fri Mar 5 16:41:07 2021 daemon.info syslog: 11[NET] sending packet: from 10.2.133.65[4500] to 193.206.192.7[4500] (108 bytes)
Fri Mar 5 16:41:20 2021 daemon.info syslog: 14[IKE] sending retransmit 3 of request message ID 0, seq 3
Fri Mar 5 16:41:20 2021 daemon.info syslog: 14[NET] sending packet: from 10.2.133.65[4500] to 193.206.192.7[4500] (108 bytes)
Fri Mar 5 16:41:33 2021 local1.info gsmd[12449]: gsmd send: 'AT+QCSQ' (8)
Fri Mar 5 16:41:33 2021 local1.info gsmd[12449]: gsmd get: '+QCSQ: "LTE",78,-105,125,-9' (27)
Fri Mar 5 16:41:33 2021 local1.info gsmd[12449]: gsmd send: 'AT+CREG?' (9)
Fri Mar 5 16:41:33 2021 local1.info gsmd[12449]: gsmd get: '+CREG: 2,1,"0C3B","3184F3F",7' (29)
Fri Mar 5 16:41:44 2021 daemon.info syslog: 05[IKE] sending retransmit 4 of request message ID 0, seq 3
Fri Mar 5 16:41:44 2021 daemon.info syslog: 05[NET] sending packet: from 10.2.133.65[4500] to 193.206.192.7[4500] (108 bytes)
Fri Mar 5 16:42:26 2021 daemon.info syslog: 07[IKE] sending retransmit 5 of request message ID 0, seq 3
Fri Mar 5 16:42:26 2021 daemon.info syslog: 07[NET] sending packet: from 10.2.133.65[4500] to 193.206.192.7[4500] (108 bytes)
Fri Mar 5 16:42:57 2021 local1.info gsmd[12449]: gsmd send: 'AT+QCSQ' (8)
Fri Mar 5 16:42:57 2021 local1.info gsmd[12449]: gsmd get: '+QCSQ: "LTE",72,-105,106,-9' (27)
Fri Mar 5 16:42:57 2021 local1.info gsmd[12449]: gsmd send: 'AT+CREG?' (9)
Fri Mar 5 16:42:57 2021 local1.info gsmd[12449]: gsmd get: '+CREG: 2,1,"0C3B","3184F3F",7' (29)
Fri Mar 5 16:43:17 2021 local1.info gsmd[12449]: gsmd send: 'AT+QCSQ' (8)
Fri Mar 5 16:43:17 2021 local1.info gsmd[12449]: gsmd get: '+QCSQ: "LTE",78,-105,117,-9' (27)
Fri Mar 5 16:43:17 2021 local1.info gsmd[12449]: gsmd send: 'AT+CREG?' (9)
Fri Mar 5 16:43:17 2021 local1.info gsmd[12449]: gsmd get: '+CREG: 2,1,"0C3B","3184F3F",7' (29)
Fri Mar 5 16:43:41 2021 daemon.info syslog: 15[IKE] giving up after 5 retransmits
Fri Mar 5 16:43:41 2021 daemon.info syslog: 15[IKE] peer not responding, trying again (3/0)
Fri Mar 5 16:43:41 2021 daemon.info syslog: 15[IKE] initiating Main Mode IKE_SA Movico3[1] to 193.206.192.7
Fri Mar 5 16:43:41 2021 authpriv.info syslog: 15[IKE] initiating Main Mode IKE_SA Movico3[1] to 193.206.192.7
Fri Mar 5 16:43:41 2021 daemon.info syslog: 15[ENC] generating ID_PROT request 0 [ SA V V V V V ]
Fri Mar 5 16:43:41 2021 daemon.info syslog: 15[NET] sending packet: from 10.2.133.65[500] to 193.206.192.7[500] (224 bytes)
Fri Mar 5 16:43:41 2021 daemon.info syslog: 16[NET] received packet: from 193.206.192.7[500] to 10.2.133.65[500] (192 bytes)
Fri Mar 5 16:43:41 2021 daemon.info syslog: 16[ENC] parsed ID_PROT response 0 [ SA V V V V V ]
Fri Mar 5 16:43:41 2021 daemon.info syslog: 16[IKE] received NAT-T (RFC 3947) vendor ID
Fri Mar 5 16:43:41 2021 daemon.info syslog: 16[IKE] received DPD vendor ID
Fri Mar 5 16:43:41 2021 daemon.info syslog: 16[ENC] received unknown vendor ID: 82:99:03:17:57:a3:60:82:c6:a6:21:de:00:00:00:00
Fri Mar 5 16:43:41 2021 daemon.info syslog: 16[IKE] received FRAGMENTATION vendor ID
Fri Mar 5 16:43:41 2021 daemon.info syslog: 16[IKE] received FRAGMENTATION vendor ID
Fri Mar 5 16:43:41 2021 daemon.info syslog: 16[ENC] generating ID_PROT request 0 [ KE No NAT-D NAT-D ]
Fri Mar 5 16:43:41 2021 daemon.info syslog: 16[NET] sending packet: from 10.2.133.65[500] to 193.206.192.7[500] (308 bytes)
Fri Mar 5 16:43:41 2021 daemon.info syslog: 05[NET] received packet: from 193.206.192.7[500] to 10.2.133.65[500] (292 bytes)
Fri Mar 5 16:43:41 2021 daemon.info syslog: 05[ENC] parsed ID_PROT response 0 [ KE No NAT-D NAT-D ]
Fri Mar 5 16:43:42 2021 daemon.info syslog: 05[ENC] generating ID_PROT request 0 [ ID HASH N(INITIAL_CONTACT) ]
Fri Mar 5 16:43:42 2021 daemon.info syslog: 05[NET] sending packet: from 10.2.133.65[4500] to 193.206.192.7[4500] (108 bytes)
Fri Mar 5 16:43:45 2021 local1.info gsmd[12449]: gsmd send: 'AT+QCSQ' (8)
Fri Mar 5 16:43:45 2021 local1.info gsmd[12449]: gsmd get: '+QCSQ: "LTE",72,-105,108,-9' (27)
Fri Mar 5 16:43:45 2021 local1.info gsmd[12449]: gsmd send: 'AT+CREG?' (9)
Fri Mar 5 16:43:45 2021 local1.info gsmd[12449]: gsmd get: '+CREG: 2,1,"0C3B","3184F3F",7' (29)
Fri Mar 5 16:43:46 2021 daemon.info syslog: 07[IKE] sending retransmit 1 of request message ID 0, seq 3
Fri Mar 5 16:43:46 2021 daemon.info syslog: 07[NET] sending packet: from 10.2.133.65[4500] to 193.206.192.7[4500] (108 bytes)
Fri Mar 5 16:43:51 2021 local1.info gsmd[12449]: gsmd send: 'AT+QCSQ' (8)
Fri Mar 5 16:43:51 2021 local1.info gsmd[12449]: gsmd get: '+QCSQ: "LTE",79,-105,112,-9' (27)
Fri Mar 5 16:43:51 2021 local1.info gsmd[12449]: gsmd send: 'AT+CREG?' (9)
Fri Mar 5 16:43:51 2021 local1.info gsmd[12449]: gsmd get: '+CREG: 2,1,"0C3B","3184F3F",7' (29)
Fri Mar 5 16:43:53 2021 daemon.info syslog: 10[IKE] sending retransmit 2 of request message ID 0, seq 3
Fri Mar 5 16:43:53 2021 daemon.info syslog: 10[NET] sending packet: from 10.2.133.65[4500] to 193.206.192.7[4500] (108 bytes)
Fri Mar 5 16:44:00 2021 local1.info gsmd[12449]: gsmd send: 'AT+QCSQ' (8)
Fri Mar 5 16:44:00 2021 local1.info gsmd[12449]: gsmd get: '+QCSQ: "LTE",73,-105,97,-9' (26)
Fri Mar 5 16:44:00 2021 local1.info gsmd[12449]: gsmd send: 'AT+CREG?' (9)
Fri Mar 5 16:44:00 2021 local1.info gsmd[12449]: gsmd get: '+CREG: 2,1,"0C3B","3184F3F",7' (29)
Fri Mar 5 16:44:06 2021 daemon.info syslog: 09[IKE] sending retransmit 3 of request message ID 0, seq 3
Fri Mar 5 16:44:06 2021 daemon.info syslog: 09[NET] sending packet: from 10.2.133.65[4500] to 193.206.192.7[4500] (108 bytes)