Hi Jan,

The VPN tunnel is established successfully and connectivity is possible
through the tunnel, except the link-mtu warning.
Attached the client log.

Thanx,
Alex



On Wed, Sep 20, 2017 at 12:25 PM, Jan Just Keijser <[email protected]>
wrote:

> Hi Alex,
>
> On 18/09/17 18:53, Alex K wrote:
>
> Hi Jan,
>
> Yes, I use ncp-disable on client side so as to be able to have per client
> cipher negotiation.
> How can one have ncp-disable and avoid link MTU issues?
>
>
> I must say that I have not tried the per-client cipher patch yet, but I
> can imagine at which point it might cause problems. Of course, a per-client
> cipher would never have worked with OpenVPN < 2.4, so I am not surprised
> that you did not see it in the past.
> Can you post/mail the client-side log file of a failing connection?
>
> cheers,
>
> JJK
>
>
> On Mon, Sep 18, 2017 at 7:43 PM, Jan Just Keijser <[email protected]>
> wrote:
>
>> Hi Alex,
>>
>> On 15/09/17 18:54, Alex K wrote:
>>
>> Hi all,
>>
>> I am receiving the below warning on server and client side when setting
>> up the tunnel:
>>
>> server:
>> Fri Sep 15 16:45:14 2017 172.30.0.180:44304 WARNING: 'link-mtu' is used
>> inconsistently, local='link-mtu 1562', remote='link-mtu 1530'
>>
>> client:
>> Fri Sep 15 16:45:14 2017 us=87436 WARNING: 'link-mtu' is used
>> inconsistently, local='link-mtu 1530', remote='link-mtu 1562'
>>
>> and further down on client side:
>> Fri Sep 15 16:45:15 2017 us=282768 OPTIONS IMPORT: adjusting link_mtu to
>> 1629
>>
>>
>> I have on server side:
>> tun-mtu 1500
>> fragment 1360
>> mssfix
>>
>>
>> and on client side exactly the same:
>> tun-mtu 1500
>> fragment 1360
>> mssfix
>>
>> The tun interfaces on both sides show as 1500 with ifconfig.
>>
>> Why is this case? I cannot recall seeing such warning on openvpn 2.2.1-8.
>> I can provide more details if needed.
>>
>>
>> the link-mtu size also depends on the cipher and auth used ; are you
>> using NCP at all (i.e. do you explicitly specify 'disable-ncp' ?)   A log
>> file of a failing client with 'verb 4' set would help.
>>
>> HTH,
>>
>> JJK
>>
>>
>
>
Wed Sep 20 09:45:32 2017 us=904954 Current Parameter Settings:
Wed Sep 20 09:45:32 2017 us=905032   config = '/etc/openvpn/fbb0.conf'
Wed Sep 20 09:45:32 2017 us=905045   mode = 0
Wed Sep 20 09:45:32 2017 us=905056   persist_config = DISABLED
Wed Sep 20 09:45:32 2017 us=905066   persist_mode = 1
Wed Sep 20 09:45:32 2017 us=905075   show_ciphers = DISABLED
Wed Sep 20 09:45:32 2017 us=905085   show_digests = DISABLED
Wed Sep 20 09:45:32 2017 us=905095   show_engines = DISABLED
Wed Sep 20 09:45:32 2017 us=905104   genkey = DISABLED
Wed Sep 20 09:45:32 2017 us=905114   key_pass_file = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905124   show_tls_ciphers = DISABLED
Wed Sep 20 09:45:32 2017 us=905133   connect_retry_max = 0
Wed Sep 20 09:45:32 2017 us=905143 Connection profiles [0]:
Wed Sep 20 09:45:32 2017 us=905153   proto = udp
Wed Sep 20 09:45:32 2017 us=905163   local = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905173   local_port = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905183   remote = '172.30.0.228'
Wed Sep 20 09:45:32 2017 us=905193   remote_port = '1194'
Wed Sep 20 09:45:32 2017 us=905202   remote_float = DISABLED
Wed Sep 20 09:45:32 2017 us=905212   bind_defined = DISABLED
Wed Sep 20 09:45:32 2017 us=905221   bind_local = DISABLED
Wed Sep 20 09:45:32 2017 us=905231   bind_ipv6_only = DISABLED
Wed Sep 20 09:45:32 2017 us=905241   connect_retry_seconds = 5
Wed Sep 20 09:45:32 2017 us=905250   connect_timeout = 120
Wed Sep 20 09:45:32 2017 us=905260   socks_proxy_server = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905270   socks_proxy_port = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905279   tun_mtu = 1500
Wed Sep 20 09:45:32 2017 us=905289   tun_mtu_defined = ENABLED
Wed Sep 20 09:45:32 2017 us=905299   link_mtu = 1500
Wed Sep 20 09:45:32 2017 us=905308   link_mtu_defined = DISABLED
Wed Sep 20 09:45:32 2017 us=905318   tun_mtu_extra = 0
Wed Sep 20 09:45:32 2017 us=905328   tun_mtu_extra_defined = DISABLED
Wed Sep 20 09:45:32 2017 us=905337   mtu_discover_type = -1
Wed Sep 20 09:45:32 2017 us=905347   fragment = 1360
Wed Sep 20 09:45:32 2017 us=905356   mssfix = 1360
Wed Sep 20 09:45:32 2017 us=905366   explicit_exit_notification = 0
Wed Sep 20 09:45:32 2017 us=905376 Connection profiles END
Wed Sep 20 09:45:32 2017 us=905385   remote_random = DISABLED
Wed Sep 20 09:45:32 2017 us=905395   ipchange = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905405   dev = 'tun1'
Wed Sep 20 09:45:32 2017 us=905418   dev_type = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905428   dev_node = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905438   lladdr = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905447   topology = 1
Wed Sep 20 09:45:32 2017 us=905457   ifconfig_local = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905467   ifconfig_remote_netmask = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905477   ifconfig_noexec = DISABLED
Wed Sep 20 09:45:32 2017 us=905486   ifconfig_nowarn = DISABLED
Wed Sep 20 09:45:32 2017 us=905496   ifconfig_ipv6_local = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905505   ifconfig_ipv6_netbits = 0
Wed Sep 20 09:45:32 2017 us=905515   ifconfig_ipv6_remote = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905525   shaper = 0
Wed Sep 20 09:45:32 2017 us=905534   mtu_test = 0
Wed Sep 20 09:45:32 2017 us=905544   mlock = DISABLED
Wed Sep 20 09:45:32 2017 us=905553   keepalive_ping = 0
Wed Sep 20 09:45:32 2017 us=905563   keepalive_timeout = 0
Wed Sep 20 09:45:32 2017 us=905573   inactivity_timeout = 0
Wed Sep 20 09:45:32 2017 us=905582   ping_send_timeout = 0
Wed Sep 20 09:45:32 2017 us=905592   ping_rec_timeout = 0
Wed Sep 20 09:45:32 2017 us=905614   ping_rec_timeout_action = 0
Wed Sep 20 09:45:32 2017 us=905624   ping_timer_remote = DISABLED
Wed Sep 20 09:45:32 2017 us=905634   remap_sigusr1 = 0
Wed Sep 20 09:45:32 2017 us=905644   persist_tun = ENABLED
Wed Sep 20 09:45:32 2017 us=905654   persist_local_ip = DISABLED
Wed Sep 20 09:45:32 2017 us=905663   persist_remote_ip = DISABLED
Wed Sep 20 09:45:32 2017 us=905673   persist_key = ENABLED
Wed Sep 20 09:45:32 2017 us=905682   passtos = ENABLED
Wed Sep 20 09:45:32 2017 us=905692   resolve_retry_seconds = 1000000000
Wed Sep 20 09:45:32 2017 us=905702   resolve_in_advance = DISABLED
Wed Sep 20 09:45:32 2017 us=905727   username = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905739   groupname = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905748   chroot_dir = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=905758   cd_dir = '/etc/openvpn'
Wed Sep 20 09:45:32 2017 us=905768   writepid = '/var/run/openvpn.fbb0.pid'
Wed Sep 20 09:45:32 2017 us=905778   up_script = '/usr/bin/vpn_up_down'
Wed Sep 20 09:45:32 2017 us=905788   down_script = '/usr/bin/vpn_up_down'
Wed Sep 20 09:45:32 2017 us=905798   down_pre = DISABLED
Wed Sep 20 09:45:32 2017 us=905807   up_restart = ENABLED
Wed Sep 20 09:45:32 2017 us=905817   up_delay = DISABLED
Wed Sep 20 09:45:32 2017 us=905826   daemon = ENABLED
Wed Sep 20 09:45:32 2017 us=905836   inetd = 0
Wed Sep 20 09:45:32 2017 us=905846   log = ENABLED
Wed Sep 20 09:45:32 2017 us=905856   suppress_timestamps = DISABLED
Wed Sep 20 09:45:32 2017 us=905866   machine_readable_output = DISABLED
Wed Sep 20 09:45:32 2017 us=905875   nice = 0
Wed Sep 20 09:45:32 2017 us=905885   verbosity = 4
Wed Sep 20 09:45:32 2017 us=905895   mute = 0
Wed Sep 20 09:45:32 2017 us=905905   status_file = '/var/run/openvpn.fbb0.status'
Wed Sep 20 09:45:32 2017 us=905937   status_file_version = 1
Wed Sep 20 09:45:32 2017 us=905948   status_file_update_freq = 10
Wed Sep 20 09:45:32 2017 us=905958   occ = ENABLED
Wed Sep 20 09:45:32 2017 us=905967   rcvbuf = 0
Wed Sep 20 09:45:32 2017 us=905977   sndbuf = 0
Wed Sep 20 09:45:32 2017 us=905987   mark = 0
Wed Sep 20 09:45:32 2017 us=905996   sockflags = 0
Wed Sep 20 09:45:32 2017 us=906007   fast_io = DISABLED
Wed Sep 20 09:45:32 2017 us=906017   comp.alg = 4
Wed Sep 20 09:45:32 2017 us=906027   comp.flags = 4
Wed Sep 20 09:45:32 2017 us=906037   route_script = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906047   route_default_gateway = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906063   route_default_metric = 0
Wed Sep 20 09:45:32 2017 us=906075   route_noexec = DISABLED
Wed Sep 20 09:45:32 2017 us=906085   route_delay = 0
Wed Sep 20 09:45:32 2017 us=906095   route_delay_window = 30
Wed Sep 20 09:45:32 2017 us=906105   route_delay_defined = DISABLED
Wed Sep 20 09:45:32 2017 us=906114   route_nopull = DISABLED
Wed Sep 20 09:45:32 2017 us=906125   route_gateway_via_dhcp = DISABLED
Wed Sep 20 09:45:32 2017 us=906134   allow_pull_fqdn = DISABLED
Wed Sep 20 09:45:32 2017 us=906145   management_addr = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906170   management_port = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906181   management_user_pass = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906191   management_log_history_cache = 250
Wed Sep 20 09:45:32 2017 us=906201   management_echo_buffer_size = 100
Wed Sep 20 09:45:32 2017 us=906211   management_write_peer_info_file = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906221   management_client_user = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906232   management_client_group = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906242   management_flags = 0
Wed Sep 20 09:45:32 2017 us=906251   shared_secret_file = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906261   key_direction = 2
Wed Sep 20 09:45:32 2017 us=906271   ciphername = 'none'
Wed Sep 20 09:45:32 2017 us=906281   ncp_enabled = DISABLED
Wed Sep 20 09:45:32 2017 us=906291   ncp_ciphers = 'AES-256-GCM:AES-128-GCM'
Wed Sep 20 09:45:32 2017 us=906301   authname = 'SHA1'
Wed Sep 20 09:45:32 2017 us=906311   prng_hash = 'SHA1'
Wed Sep 20 09:45:32 2017 us=906321   prng_nonce_secret_len = 16
Wed Sep 20 09:45:32 2017 us=906331   keysize = 0
Wed Sep 20 09:45:32 2017 us=906341   engine = DISABLED
Wed Sep 20 09:45:32 2017 us=906351   replay = ENABLED
Wed Sep 20 09:45:32 2017 us=906361   mute_replay_warnings = DISABLED
Wed Sep 20 09:45:32 2017 us=906371   replay_window = 64
Wed Sep 20 09:45:32 2017 us=906381   replay_time = 15
Wed Sep 20 09:45:32 2017 us=906390   packet_id_file = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906400   use_iv = ENABLED
Wed Sep 20 09:45:32 2017 us=906410   test_crypto = DISABLED
Wed Sep 20 09:45:32 2017 us=906420   tls_server = DISABLED
Wed Sep 20 09:45:32 2017 us=906430   tls_client = ENABLED
Wed Sep 20 09:45:32 2017 us=906456   key_method = 2
Wed Sep 20 09:45:32 2017 us=906468   ca_file = 'keys/ca.crt'
Wed Sep 20 09:45:32 2017 us=906478   ca_path = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906487   dh_file = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906497   cert_file = 'keys/Gateway-VM.crt'
Wed Sep 20 09:45:32 2017 us=906507   extra_certs_file = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906517   priv_key_file = 'keys/Gateway-VM.key'
Wed Sep 20 09:45:32 2017 us=906527   pkcs12_file = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906537   cipher_list = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906547   tls_verify = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906556   tls_export_cert = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906566   verify_x509_type = 0
Wed Sep 20 09:45:32 2017 us=906576   verify_x509_name = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906586   crl_file = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906595   ns_cert_type = 1
Wed Sep 20 09:45:32 2017 us=906617   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906627   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906636   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906646   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906656   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906666   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906675   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906685   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906695   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906704   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906714   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906724   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906733   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906743   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906753   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906762   remote_cert_ku[i] = 0
Wed Sep 20 09:45:32 2017 us=906772   remote_cert_eku = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906782   ssl_flags = 0
Wed Sep 20 09:45:32 2017 us=906791   tls_timeout = 2
Wed Sep 20 09:45:32 2017 us=906801   renegotiate_bytes = -1
Wed Sep 20 09:45:32 2017 us=906811   renegotiate_packets = 0
Wed Sep 20 09:45:32 2017 us=906821   renegotiate_seconds = 0
Wed Sep 20 09:45:32 2017 us=906830   handshake_window = 60
Wed Sep 20 09:45:32 2017 us=906840   transition_window = 3600
Wed Sep 20 09:45:32 2017 us=906850   single_session = DISABLED
Wed Sep 20 09:45:32 2017 us=906860   push_peer_info = DISABLED
Wed Sep 20 09:45:32 2017 us=906869   tls_exit = DISABLED
Wed Sep 20 09:45:32 2017 us=906879   tls_auth_file = 'keys/ta.key'
Wed Sep 20 09:45:32 2017 us=906889   tls_crypt_file = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=906909   server_network = 0.0.0.0
Wed Sep 20 09:45:32 2017 us=906920   server_netmask = 0.0.0.0
Wed Sep 20 09:45:32 2017 us=906934   server_network_ipv6 = ::
Wed Sep 20 09:45:32 2017 us=906944   server_netbits_ipv6 = 0
Wed Sep 20 09:45:32 2017 us=906955   server_bridge_ip = 0.0.0.0
Wed Sep 20 09:45:32 2017 us=906966   server_bridge_netmask = 0.0.0.0
Wed Sep 20 09:45:32 2017 us=906976   server_bridge_pool_start = 0.0.0.0
Wed Sep 20 09:45:32 2017 us=906987   server_bridge_pool_end = 0.0.0.0
Wed Sep 20 09:45:32 2017 us=906997   ifconfig_pool_defined = DISABLED
Wed Sep 20 09:45:32 2017 us=907011   ifconfig_pool_start = 0.0.0.0
Wed Sep 20 09:45:32 2017 us=907023   ifconfig_pool_end = 0.0.0.0
Wed Sep 20 09:45:32 2017 us=907034   ifconfig_pool_netmask = 0.0.0.0
Wed Sep 20 09:45:32 2017 us=907044   ifconfig_pool_persist_filename = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=907054   ifconfig_pool_persist_refresh_freq = 600
Wed Sep 20 09:45:32 2017 us=907064   ifconfig_ipv6_pool_defined = DISABLED
Wed Sep 20 09:45:32 2017 us=907075   ifconfig_ipv6_pool_base = ::
Wed Sep 20 09:45:32 2017 us=907085   ifconfig_ipv6_pool_netbits = 0
Wed Sep 20 09:45:32 2017 us=907095   n_bcast_buf = 256
Wed Sep 20 09:45:32 2017 us=907105   tcp_queue_limit = 64
Wed Sep 20 09:45:32 2017 us=907115   real_hash_size = 256
Wed Sep 20 09:45:32 2017 us=907125   virtual_hash_size = 256
Wed Sep 20 09:45:32 2017 us=907135   client_connect_script = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=907151   learn_address_script = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=907162   client_disconnect_script = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=907172   client_config_dir = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=907182   ccd_exclusive = DISABLED
Wed Sep 20 09:45:32 2017 us=907191   tmp_dir = '/tmp'
Wed Sep 20 09:45:32 2017 us=907201   push_ifconfig_defined = DISABLED
Wed Sep 20 09:45:32 2017 us=907212   push_ifconfig_local = 0.0.0.0
Wed Sep 20 09:45:32 2017 us=907223   push_ifconfig_remote_netmask = 0.0.0.0
Wed Sep 20 09:45:32 2017 us=907233   push_ifconfig_ipv6_defined = DISABLED
Wed Sep 20 09:45:32 2017 us=907244   push_ifconfig_ipv6_local = ::/0
Wed Sep 20 09:45:32 2017 us=907255   push_ifconfig_ipv6_remote = ::
Wed Sep 20 09:45:32 2017 us=907265   enable_c2c = DISABLED
Wed Sep 20 09:45:32 2017 us=907274   duplicate_cn = DISABLED
Wed Sep 20 09:45:32 2017 us=907284   cf_max = 0
Wed Sep 20 09:45:32 2017 us=907294   cf_per = 0
Wed Sep 20 09:45:32 2017 us=907304   max_clients = 1024
Wed Sep 20 09:45:32 2017 us=907314   max_routes_per_client = 256
Wed Sep 20 09:45:32 2017 us=907324   auth_user_pass_verify_script = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=907334   auth_user_pass_verify_script_via_file = DISABLED
Wed Sep 20 09:45:32 2017 us=907343   auth_token_generate = DISABLED
Wed Sep 20 09:45:32 2017 us=907354   auth_token_lifetime = 0
Wed Sep 20 09:45:32 2017 us=907363   port_share_host = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=907373   port_share_port = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=907383   client = ENABLED
Wed Sep 20 09:45:32 2017 us=907393   pull = ENABLED
Wed Sep 20 09:45:32 2017 us=907403   auth_user_pass_file = '[UNDEF]'
Wed Sep 20 09:45:32 2017 us=907422 OpenVPN 2.4.3 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on Aug 24 2017
Wed Sep 20 09:45:32 2017 us=907444 library versions: OpenSSL 1.0.1t  3 May 2016, LZO 2.06
Wed Sep 20 09:45:32 2017 us=907956 WARNING: --ns-cert-type is DEPRECATED.  Use --remote-cert-tls instead.
Wed Sep 20 09:45:32 2017 us=907993 NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Wed Sep 20 09:45:32 2017 us=908870 ******* WARNING *******: '--cipher none' was specified. This means NO encryption will be performed and tunnelled data WILL be transmitted in clear text over the network! PLEASE DO RECONSIDER THIS SETTING!
Wed Sep 20 09:45:32 2017 us=908970 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Sep 20 09:45:32 2017 us=908985 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Sep 20 09:45:32 2017 us=908999 LZ4 compression initializing
Wed Sep 20 09:45:32 2017 us=909092 Control Channel MTU parms [ L:1626 D:1184 EF:66 EB:0 ET:0 EL:3 ]
Wed Sep 20 09:45:32 2017 us=909247 Data Channel MTU parms [ L:1626 D:1360 EF:126 EB:407 ET:0 EL:3 AF:14/126 ]
Wed Sep 20 09:45:32 2017 us=909263 Fragmentation MTU parms [ L:1626 D:1360 EF:125 EB:407 ET:1 EL:3 AF:14/126 ]
Wed Sep 20 09:45:32 2017 us=909284 Local Options String (VER=V4): 'V4,dev-type tun,link-mtu 1530,tun-mtu 1500,proto UDPv4,comp-lzo,mtu-dynamic,keydir 1,cipher [null-cipher],auth SHA1,keysize 0,tls-auth,key-method 2,tls-client'
Wed Sep 20 09:45:32 2017 us=909294 Expected Remote Options String (VER=V4): 'V4,dev-type tun,link-mtu 1530,tun-mtu 1500,proto UDPv4,comp-lzo,mtu-dynamic,keydir 0,cipher [null-cipher],auth SHA1,keysize 0,tls-auth,key-method 2,tls-server'
Wed Sep 20 09:45:32 2017 us=909310 TCP/UDP: Preserving recently used remote address: [AF_INET]172.30.0.228:1194
Wed Sep 20 09:45:32 2017 us=909330 Socket Buffers: R=[212992->212992] S=[212992->212992]
Wed Sep 20 09:45:32 2017 us=909341 UDP link local: (not bound)
Wed Sep 20 09:45:32 2017 us=909351 UDP link remote: [AF_INET]172.30.0.228:1194
Wed Sep 20 09:45:32 2017 us=918624 TLS: Initial packet from [AF_INET]172.30.0.228:1194, sid=0e9f588d 273d8b0b
Wed Sep 20 09:45:32 2017 us=922582 VERIFY OK: depth=1, C=GR, ST=Greece, L=Athens, O=Company, OU=O-HUB, CN=O-HUB, name=O-HUB, [email protected]
Wed Sep 20 09:45:32 2017 us=922888 VERIFY OK: nsCertType=SERVER
Wed Sep 20 09:45:32 2017 us=922905 VERIFY OK: depth=0, C=GR, ST=Greece, L=Athens, O=Company, OU=O-HUB, CN=O-HUB, name=O-HUB, [email protected]
Wed Sep 20 09:45:32 2017 us=933258 WARNING: 'link-mtu' is used inconsistently, local='link-mtu 1530', remote='link-mtu 1562'
Wed Sep 20 09:45:32 2017 us=933304 WARNING: 'cipher' is used inconsistently, local='cipher [null-cipher]', remote='cipher AES-128-CBC'
Wed Sep 20 09:45:32 2017 us=933324 WARNING: 'keysize' is used inconsistently, local='keysize 0', remote='keysize 128'
Wed Sep 20 09:45:32 2017 us=933468 Control Channel: TLSv1.2, cipher TLSv1/SSLv3 ECDHE-RSA-AES256-GCM-SHA384, 1024 bit RSA
Wed Sep 20 09:45:32 2017 us=933501 [O-HUB] Peer Connection Initiated with [AF_INET]172.30.0.228:1194
Wed Sep 20 09:45:34 2017 us=27811 SENT CONTROL [O-HUB]: 'PUSH_REQUEST' (status=1)
Wed Sep 20 09:45:34 2017 us=682023 PUSH: Received control message: 'PUSH_REPLY,route-gateway 169.251.0.1,topology subnet,ping 120,ping-restart 600,redirect-gateway def1 bypass-dhcp,compress lz4,ifconfig 169.251.0.49 255.255.0.0,peer-id 0'
Wed Sep 20 09:45:34 2017 us=682116 OPTIONS IMPORT: timers and/or timeouts modified
Wed Sep 20 09:45:34 2017 us=682129 OPTIONS IMPORT: compression parms modified
Wed Sep 20 09:45:34 2017 us=682138 LZ4 compression initializing
Wed Sep 20 09:45:34 2017 us=682146 OPTIONS IMPORT: --ifconfig/up options modified
Wed Sep 20 09:45:34 2017 us=682154 OPTIONS IMPORT: route options modified
Wed Sep 20 09:45:34 2017 us=682162 OPTIONS IMPORT: route-related options modified
Wed Sep 20 09:45:34 2017 us=682169 OPTIONS IMPORT: peer-id set
Wed Sep 20 09:45:34 2017 us=682177 OPTIONS IMPORT: adjusting link_mtu to 1629
Wed Sep 20 09:45:34 2017 us=682185 ******* WARNING *******: '--cipher none' was specified. This means NO encryption will be performed and tunnelled data WILL be transmitted in clear text over the network! PLEASE DO RECONSIDER THIS SETTING!
Wed Sep 20 09:45:34 2017 us=682198 Data Channel MTU parms [ L:1533 D:1360 EF:33 EB:407 ET:0 EL:3 AF:14/126 ]
Wed Sep 20 09:45:34 2017 us=682288 Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Sep 20 09:45:34 2017 us=682301 Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Wed Sep 20 09:45:34 2017 us=682810 TUN/TAP device tun1 opened
Wed Sep 20 09:45:34 2017 us=682834 TUN/TAP TX queue length set to 100
Wed Sep 20 09:45:34 2017 us=682852 do_ifconfig, tt->did_ifconfig_ipv6_setup=0
Wed Sep 20 09:45:34 2017 us=682869 /sbin/ip link set dev tun1 up mtu 1500
Wed Sep 20 09:45:34 2017 us=697154 /sbin/ip addr add dev tun1 169.251.0.49/16 broadcast 169.251.255.255
Wed Sep 20 09:45:34 2017 us=698649 /usr/bin/vpn_up_down tun1 1500 1533 169.251.0.49 255.255.0.0 init
Wed Sep 20 09:45:34 2017 us=757348 /sbin/ip route add 172.30.0.228/32 via 192.168.28.100
Wed Sep 20 09:45:34 2017 us=758865 /sbin/ip route add 0.0.0.0/1 via 169.251.0.1
Wed Sep 20 09:45:34 2017 us=760110 /sbin/ip route add 128.0.0.0/1 via 169.251.0.1
Wed Sep 20 09:45:34 2017 us=761425 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this
Wed Sep 20 09:45:34 2017 us=761448 Initialization Sequence Completed
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