So here's the skinny - I have two OpenVPN servers now, both in my home. One is running on a Raspberry Pi and the other is an OpenVPN Access Server running on Ubuntu 14.04 (64bit). I am trying to access either of them (we'll concentrate on the OpenVPN Access Server) from my client's office. I can connect just fine when I am not one said client's network. However when on the client's network I see the following:
sudo openvpn client.ovpn
[sudo] password for marty331:
Tue Jul 5 19:05:35 2016 OpenVPN 2.3.10 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [EPOLL] [PKCS11] [MH] [IPv6] built on Feb 2 2016
Tue Jul 5 19:05:35 2016 library versions: OpenSSL 1.0.2g-fips 1 Mar 2016, LZO 2.08
Tue Jul 5 19:05:35 2016 Control Channel Authentication: tls-auth using INLINE static key file
Tue Jul 5 19:05:35 2016 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Jul 5 19:05:35 2016 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Jul 5 19:05:35 2016 Socket Buffers: R=[212992->200000] S=[212992->200000]
Tue Jul 5 19:05:35 2016 UDPv4 link local: [undef]
Tue Jul 5 19:05:35 2016 UDPv4 link remote: [AF_INET]super.secret.ipaddress:1194
Tue Jul 5 19:05:39 2016 Server poll timeout, restarting
Tue Jul 5 19:05:39 2016 SIGUSR1[soft,server_poll] received, process restarting
Tue Jul 5 19:05:39 2016 Control Channel Authentication: tls-auth using INLINE static key file
Tue Jul 5 19:05:39 2016 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Jul 5 19:05:39 2016 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Jul 5 19:05:39 2016 Socket Buffers: R=[212992->200000] S=[212992->200000]
Tue Jul 5 19:05:39 2016 UDPv4 link local: [undef]
Tue Jul 5 19:05:39 2016 UDPv4 link remote: [AF_INET]super.secret.ipaddress:1194
Tue Jul 5 19:05:43 2016 Server poll timeout, restarting
Tue Jul 5 19:05:43 2016 SIGUSR1[soft,server_poll] received, process restarting
Tue Jul 5 19:05:43 2016 Control Channel Authentication: tls-auth using INLINE static key file
Tue Jul 5 19:05:43 2016 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Jul 5 19:05:43 2016 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Jul 5 19:05:43 2016 Socket Buffers: R=[87380->200000] S=[16384->200000]
Tue Jul 5 19:05:43 2016 Attempting to establish TCP connection with [AF_INET]super.secret.ipaddress:444 [nonblock]
Tue Jul 5 19:05:44 2016 TCP connection established with [AF_INET]super.secret.ipaddress:444
Tue Jul 5 19:05:44 2016 TCPv4_CLIENT link local: [undef]
Tue Jul 5 19:05:44 2016 TCPv4_CLIENT link remote: [AF_INET]super.secret.ipaddress:444
Tue Jul 5 19:05:44 2016 TLS: Initial packet from [AF_INET]super.secret.ipaddress:444, sid=aeb6abae 035f030d
Tue Jul 5 19:05:44 2016 VERIFY OK: depth=1, CN=OpenVPN CA
Tue Jul 5 19:05:44 2016 VERIFY OK: nsCertType=SERVER
Tue Jul 5 19:05:44 2016 VERIFY OK: depth=0, CN=OpenVPN Server
Tue Jul 5 19:05:45 2016 Data Channel Encrypt: Cipher 'BF-CBC' initialized with 128 bit key
Tue Jul 5 19:05:45 2016 Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Jul 5 19:05:45 2016 Data Channel Decrypt: Cipher 'BF-CBC' initialized with 128 bit key
Tue Jul 5 19:05:45 2016 Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Jul 5 19:05:45 2016 Control Channel: TLSv1, cipher TLSv1/SSLv3 ECDHE-RSA-AES256-SHA, 2048 bit RSA
Tue Jul 5 19:05:45 2016 [OpenVPN Server] Peer Connection Initiated with [AF_INET]super.secret.ipaddress:444
Tue Jul 5 19:05:47 2016 SENT CONTROL [OpenVPN Server]: 'PUSH_REQUEST' (status=1)
Tue Jul 5 19:05:47 2016 PUSH: Received control message: 'PUSH_REPLY,explicit-exit-notify,topology subnet,route-delay 5 30,dhcp-pre-release,dhcp-renew,dhcp-release,route-metric 101,ping 12,ping-restart 50,socket-flags TCP_NODELAY,comp-lzo yes,redirect-gateway def1,redirect-gateway bypass-dhcp,redirect-gateway autolocal,route-gateway 172.27.224.1,dhcp-option DNS 127.0.1.1,register-dns,block-ipv6,ifconfig 172.27.224.7 255.255.252.0'
Tue Jul 5 19:05:47 2016 Option 'explicit-exit-notify' in [PUSH-OPTIONS]:1 is ignored by previous <connection> blocks
Tue Jul 5 19:05:47 2016 Unrecognized option or missing parameter(s) in [PUSH-OPTIONS]:4: dhcp-pre-release (2.3.10)
Tue Jul 5 19:05:47 2016 Unrecognized option or missing parameter(s) in [PUSH-OPTIONS]:5: dhcp-renew (2.3.10)
Tue Jul 5 19:05:47 2016 Unrecognized option or missing parameter(s) in [PUSH-OPTIONS]:6: dhcp-release (2.3.10)
Tue Jul 5 19:05:47 2016 Unrecognized option or missing parameter(s) in [PUSH-OPTIONS]:17: register-dns (2.3.10)
Tue Jul 5 19:05:47 2016 Unrecognized option or missing parameter(s) in [PUSH-OPTIONS]:18: block-ipv6 (2.3.10)
Tue Jul 5 19:05:47 2016 OPTIONS IMPORT: timers and/or timeouts modified
Tue Jul 5 19:05:47 2016 OPTIONS IMPORT: --explicit-exit-notify can only be used with --proto udp
Tue Jul 5 19:05:47 2016 OPTIONS IMPORT: LZO parms modified
Tue Jul 5 19:05:47 2016 OPTIONS IMPORT: --socket-flags option modified
Tue Jul 5 19:05:47 2016 Socket flags: TCP_NODELAY=1 succeeded
Tue Jul 5 19:05:47 2016 OPTIONS IMPORT: --ifconfig/up options modified
Tue Jul 5 19:05:47 2016 OPTIONS IMPORT: route options modified
Tue Jul 5 19:05:47 2016 OPTIONS IMPORT: route-related options modified
Tue Jul 5 19:05:47 2016 OPTIONS IMPORT: --ip-win32 and/or --dhcp-option options modified
Tue Jul 5 19:05:47 2016 ROUTE_GATEWAY 172.20.1.1/255.255.240.0 IFACE=wlp3s0 HWADDR=th:is:nt:th:ad:dr
Tue Jul 5 19:05:47 2016 TUN/TAP device tun0 opened
Tue Jul 5 19:05:47 2016 TUN/TAP TX queue length set to 100
Tue Jul 5 19:05:47 2016 do_ifconfig, tt->ipv6=0, tt->did_ifconfig_ipv6_setup=0
Tue Jul 5 19:05:47 2016 /sbin/ip link set dev tun0 up mtu 1500
Tue Jul 5 19:05:47 2016 /sbin/ip addr add dev tun0 172.27.224.7/22 broadcast 172.27.227.255
Tue Jul 5 19:05:52 2016 ROUTE remote_host is NOT LOCAL
Tue Jul 5 19:05:52 2016 /sbin/ip route add super.secret.ipaddress/32 via 172.20.1.1
Tue Jul 5 19:05:52 2016 /sbin/ip route add 0.0.0.0/1 via 172.27.224.1
Tue Jul 5 19:05:52 2016 /sbin/ip route add 128.0.0.0/1 via 172.27.224.1
Tue Jul 5 19:05:52 2016 Initialization Sequence Completed
Wed Jul 6 01:05:44 2016 VERIFY OK: depth=1, CN=OpenVPN CA
Wed Jul 6 01:05:44 2016 VERIFY OK: nsCertType=SERVER
Wed Jul 6 01:05:44 2016 VERIFY OK: depth=0, CN=OpenVPN Server
Wed Jul 6 01:05:45 2016 Data Channel Encrypt: Cipher 'BF-CBC' initialized with 128 bit key
Wed Jul 6 01:05:45 2016 Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 01:05:45 2016 Data Channel Decrypt: Cipher 'BF-CBC' initialized with 128 bit key
Wed Jul 6 01:05:45 2016 Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 01:05:45 2016 Control Channel: TLSv1, cipher TLSv1/SSLv3 ECDHE-RSA-AES256-SHA, 2048 bit RSA
Wed Jul 6 02:05:44 2016 TLS: tls_process: killed expiring key
^CWed Jul 6 06:11:30 2016 event_wait : Interrupted system call (code=4)
Wed Jul 6 06:11:30 2016 /sbin/ip route del super.secret.ipaddress/32
Wed Jul 6 06:11:30 2016 /sbin/ip route del 0.0.0.0/1
Wed Jul 6 06:11:30 2016 /sbin/ip route del 128.0.0.0/1
Wed Jul 6 06:11:30 2016 Closing TUN/TAP interface
Wed Jul 6 06:11:30 2016 /sbin/ip addr del dev tun0 172.27.224.7/22
Wed Jul 6 06:11:30 2016 SIGINT[hard,] received, process exiting
marty331@galago:~/open/pinkie$ sudo openvpn client.ovpn
[sudo] password for marty331:
Wed Jul 6 07:00:59 2016 OpenVPN 2.3.10 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [EPOLL] [PKCS11] [MH] [IPv6] built on Feb 2 2016
Wed Jul 6 07:00:59 2016 library versions: OpenSSL 1.0.2g-fips 1 Mar 2016, LZO 2.08
Wed Jul 6 07:00:59 2016 Control Channel Authentication: tls-auth using INLINE static key file
Wed Jul 6 07:00:59 2016 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:00:59 2016 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:00:59 2016 Socket Buffers: R=[212992->200000] S=[212992->200000]
Wed Jul 6 07:00:59 2016 UDPv4 link local: [undef]
Wed Jul 6 07:00:59 2016 UDPv4 link remote: [AF_INET]super.secret.ipaddress:1194
Wed Jul 6 07:01:03 2016 Server poll timeout, restarting
Wed Jul 6 07:01:03 2016 SIGUSR1[soft,server_poll] received, process restarting
Wed Jul 6 07:01:03 2016 Control Channel Authentication: tls-auth using INLINE static key file
Wed Jul 6 07:01:03 2016 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:03 2016 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:03 2016 Socket Buffers: R=[212992->200000] S=[212992->200000]
Wed Jul 6 07:01:03 2016 UDPv4 link local: [undef]
Wed Jul 6 07:01:03 2016 UDPv4 link remote: [AF_INET]super.secret.ipaddress:1194
Wed Jul 6 07:01:07 2016 Server poll timeout, restarting
Wed Jul 6 07:01:07 2016 SIGUSR1[soft,server_poll] received, process restarting
Wed Jul 6 07:01:07 2016 Control Channel Authentication: tls-auth using INLINE static key file
Wed Jul 6 07:01:07 2016 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:07 2016 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:07 2016 Socket Buffers: R=[87380->200000] S=[16384->200000]
Wed Jul 6 07:01:07 2016 Attempting to establish TCP connection with [AF_INET]super.secret.ipaddress:444 [nonblock]
Wed Jul 6 07:01:08 2016 TCP connection established with [AF_INET]super.secret.ipaddress:444
Wed Jul 6 07:01:08 2016 TCPv4_CLIENT link local: [undef]
Wed Jul 6 07:01:08 2016 TCPv4_CLIENT link remote: [AF_INET]super.secret.ipaddress:444
Wed Jul 6 07:01:12 2016 Server poll timeout, restarting
Wed Jul 6 07:01:12 2016 SIGUSR1[soft,server_poll] received, process restarting
Wed Jul 6 07:01:12 2016 Control Channel Authentication: tls-auth using INLINE static key file
Wed Jul 6 07:01:12 2016 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:12 2016 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:12 2016 Socket Buffers: R=[212992->200000] S=[212992->200000]
Wed Jul 6 07:01:12 2016 UDPv4 link local: [undef]
Wed Jul 6 07:01:12 2016 UDPv4 link remote: [AF_INET]super.secret.ipaddress:1194
Wed Jul 6 07:01:16 2016 Server poll timeout, restarting
Wed Jul 6 07:01:16 2016 SIGUSR1[soft,server_poll] received, process restarting
Wed Jul 6 07:01:16 2016 Control Channel Authentication: tls-auth using INLINE static key file
Wed Jul 6 07:01:16 2016 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:16 2016 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:16 2016 Socket Buffers: R=[212992->200000] S=[212992->200000]
Wed Jul 6 07:01:16 2016 UDPv4 link local: [undef]
Wed Jul 6 07:01:16 2016 UDPv4 link remote: [AF_INET]super.secret.ipaddress:1194
Wed Jul 6 07:01:20 2016 Server poll timeout, restarting
Wed Jul 6 07:01:20 2016 SIGUSR1[soft,server_poll] received, process restarting
Wed Jul 6 07:01:20 2016 Control Channel Authentication: tls-auth using INLINE static key file
Wed Jul 6 07:01:20 2016 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:20 2016 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:20 2016 Socket Buffers: R=[212992->200000] S=[212992->200000]
Wed Jul 6 07:01:20 2016 UDPv4 link local: [undef]
Wed Jul 6 07:01:20 2016 UDPv4 link remote: [AF_INET]super.secret.ipaddress:1194
Wed Jul 6 07:01:24 2016 Server poll timeout, restarting
Wed Jul 6 07:01:24 2016 SIGUSR1[soft,server_poll] received, process restarting
Wed Jul 6 07:01:24 2016 Control Channel Authentication: tls-auth using INLINE static key file
Wed Jul 6 07:01:24 2016 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:24 2016 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:24 2016 Socket Buffers: R=[212992->200000] S=[212992->200000]
Wed Jul 6 07:01:24 2016 UDPv4 link local: [undef]
Wed Jul 6 07:01:24 2016 UDPv4 link remote: [AF_INET]super.secret.ipaddress:1194
Wed Jul 6 07:01:28 2016 Server poll timeout, restarting
Wed Jul 6 07:01:28 2016 SIGUSR1[soft,server_poll] received, process restarting
Wed Jul 6 07:01:28 2016 Control Channel Authentication: tls-auth using INLINE static key file
Wed Jul 6 07:01:28 2016 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:28 2016 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:28 2016 Socket Buffers: R=[212992->200000] S=[212992->200000]
Wed Jul 6 07:01:28 2016 UDPv4 link local: [undef]
Wed Jul 6 07:01:28 2016 UDPv4 link remote: [AF_INET]super.secret.ipaddress:1194
Wed Jul 6 07:01:32 2016 Server poll timeout, restarting
Wed Jul 6 07:01:32 2016 SIGUSR1[soft,server_poll] received, process restarting
Wed Jul 6 07:01:32 2016 Control Channel Authentication: tls-auth using INLINE static key file
Wed Jul 6 07:01:32 2016 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:32 2016 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Jul 6 07:01:32 2016 Socket Buffers: R=[212992->200000] S=[212992->200000]
Wed Jul 6 07:01:32 2016 UDPv4 link local: [undef]
Wed Jul 6 07:01:32 2016 UDPv4 link remote: [AF_INET]super.secret.ipaddress:1194
Wed Jul 6 07:01:36 2016 Server poll timeout, restarting
Wed Jul 6 07:01:36 2016 SIGUSR1[soft,server_poll] received, process restarting
