Some more logging from the OpenVPN server. At the moment I unassinged the OpenVPN interface.
It wasn't clear to me if I should or should not assign the interface and configure the IP.
It seems to work (or not work) either way.
Aug 9 15:51:53 openvpn 99469 92.69.213.93:62051 TLS: Initial packet from [AF_INET]92.69.213.93:62051, sid=9157e45b 82f155c1
Aug 9 15:51:54 openvpn 99469 92.69.213.93:62051 VERIFY SCRIPT OK: depth=1, certdata
Aug 9 15:51:54 openvpn 99469 92.69.213.93:62051 VERIFY OK: depth=1, C=NL, certdata
Aug 9 15:51:54 openvpn 99469 92.69.213.93:62051 VERIFY SCRIPT OK: depth=0, certdata
Aug 9 15:51:54 openvpn 99469 92.69.213.93:62051 VERIFY OK: depth=0, certdata
Aug 9 15:51:54 openvpn user 'ME' authenticated
Aug 9 15:51:54 openvpn 99469 92.69.213.93:62051 TLS: Username/Password authentication succeeded for username 'ME' [CN SET]
Aug 9 15:51:54 openvpn 99469 92.69.213.93:62051 Data Channel Encrypt: Cipher 'AES-256-CBC' initialized with 256 bit key
Aug 9 15:51:54 openvpn 99469 92.69.213.93:62051 Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Aug 9 15:51:54 openvpn 99469 92.69.213.93:62051 Data Channel Decrypt: Cipher 'AES-256-CBC' initialized with 256 bit key
Aug 9 15:51:54 openvpn 99469 92.69.213.93:62051 Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Aug 9 15:51:54 openvpn 99469 92.69.213.93:62051 Control Channel: TLSv1.2, cipher TLSv1/SSLv3 DHE-RSA-AES256-SHA, 2048 bit RSA
Aug 9 15:51:54 openvpn 99469 92.69.213.93:62051 [mark] Peer Connection Initiated with [AF_INET]92.69.213.93:62051
Aug 9 15:51:54 openvpn 99469 mark/92.69.213.93:62051 MULTI_sva: pool returned IPv4=10.15.10.2, IPv6=(Not enabled)
Aug 9 15:51:54 openvpn 99469 mark/92.69.213.93:62051 OPTIONS IMPORT: reading client specific options from: /tmp/openvpn_cc_c22c667e5f903932f615859110b7c08c.tmp
Aug 9 15:51:54 openvpn 99469 mark/92.69.213.93:62051 MULTI: Learn: 10.15.10.2 -> ME/92.69.213.93:62051
Aug 9 15:51:54 openvpn 99469 mark/92.69.213.93:62051 MULTI: primary virtual IP for ME/92.69.213.93:62051: 10.15.10.2
Aug 9 15:51:54 openvpn 99469 mark/92.69.213.93:62051 PUSH: Received control message: 'PUSH_REQUEST'
Aug 9 15:51:54 openvpn 99469 mark/92.69.213.93:62051 send_push_reply(): safe_cap=940
Aug 9 15:51:54 openvpn 99469 mark/92.69.213.93:62051 SENT CONTROL [mark]: 'PUSH_REPLY,route 172.10.15.0 255.255.255.0,route 192.168.20.0 255.255.255.0,route 192.168.150.0 255.255.255.0,dhcp-option DOMAIN argus.local,dhcp-option DNS 192.168.20.13,dhcp-option DNS 192.168.20.15,register-dns,dhcp-option NTP 192.168.20.13,redirect-gateway def1,route-gateway 10.15.10.1,topology subnet,ping 10,ping-restart 60,ifconfig 10.15.10.2 255.255.255.0' (status=1)
Aug 9 15:52:04 openvpn 99469 MANAGEMENT: Client connected from /var/etc/openvpn/server1.sock
Aug 9 15:52:04 openvpn 99469 MANAGEMENT: CMD 'status 2'
Aug 9 15:52:04 openvpn 99469 MANAGEMENT: CMD 'quit'
Aug 9 15:52:04 openvpn 99469 MANAGEMENT: Client disconnected
Hope the log clears up anything. I don't have a clue what I'm missing.