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Hi ,Jan I have tried to avoide using proxy and set tun-mtu to a lower value, but still the same result. BTW, if setting tun-mtu to 1200 in server conf, there will be a warning message saying: "WARNING: normally if you use --mssfix and/or --fragment, you should also set --tun-mtu 1500 (currently it is 1200)" I have no idea with that message. anyway, I'll try using a linux client to see if all those warnings comes out because of the windows platform. On Dec 7, 2007 6:14 PM, Jan Just Keijser <janjust@xxxxxxxxx> wrote: > Hi Tiger Big, > > hmmm I misread your config file a little bit. I saw > tls-client > ifconfig <IP> <IP> > the first statement is a client/server setup (openvpn 2.x) whereas the > second statement is used mostly in point-to-point (openvpn 1.x) setups. > However, if you use > ifconfig <IP> <NETMASK> > which your config file shows then you're fine. Sorry about that. > > As for the warnings, your client log file shows that you're connecting > thru an HTTP proxy - I presume this is intentional; it might be best to > reflect this in the openvpn client config file. It should not make much > difference but you never know. > > Finally, try reducing the 'tun-mtu' parameter on both sides (to e.g. > 1200) and see if that helps at all. > > cheers, > > JJK > > > Tiger Big wrote: > > thanks Jan, but still the same results/warnings. > > > > one more question, why would you say "config files don't make sense" ? > > the only difference between my original conf and your modified version > > is the method of how to obtain IP address. > > > > > > > > On Dec 6, 2007 5:06 PM, Jan Just Keijser <janjust@xxxxxxxxx> wrote: > > > >> your client and server config files don't make sense. Try this for the > >> server config: > >> > >> local xxx.xxx.org > >> > >> port 8080 > >> proto tcp-server > >> tls-server > >> server 192.168.10.0 255.255.255.0 > >> > >> dev tap0 > >> cert X509/Server/server.crt > >> key X509/Server/server.key > >> dh X509/Server/dh1024.pem > >> ca X509/CA/ca.crt > >> > >> keepalive 10 120 > >> user nobody > >> group nobody > >> persist-key > >> persist-tun > >> comp-lzo > >> verb 4 > >> mute 10 > >> > >> and this for the client > >> > >> local abc > >> remote xxx.xxx.org 8080 > >> > >> proto tcp-client > >> tls-client > >> dev tap > >> dev-node tap0 > >> nobind > >> cert D:\\OpenVPN\\easy-rsa\\keys\\Tiger.crt > >> key D:\\OpenVPN\\easy-rsa\\keys\\Tiger.key > >> ca D:\\OpenVPN\\easy-rsa\\keys\\ca.crt > >> > >> keepalive 10 120 > >> comp-lzo > >> verb 4 > >> mute 10 > >> > >> HTH, > >> > >> JJK > >> > >> > >> Tiger Big wrote: > >> > >>> Server Configuration (Linux)： > >>> −−−−−−−−−−−−−−−−−− > >>> local xxx.xxx.org > >>> port 8080 > >>> proto tcp-server > >>> tls-server > >>> dev tap0 > >>> cert X509/Server/server.crt > >>> key X509/Server/server.key > >>> dh X509/Server/dh1024.pem > >>> ca X509/CA/ca.crt > >>> ifconfig 192.168.10.11 255.255.255.0 > >>> keepalive 10 120 > >>> user nobody > >>> group nobody > >>> persist-key > >>> persist-tun > >>> comp-lzo > >>> verb 4 > >>> mute 10 > >>> −−−−−−−−−−−−−−−−−− > >>> > >>> > >>> Client Configuration (WinXP): > >>> ------------------------------------------ > >>> local abc > >>> remote xxx.xxx.org 8080 > >>> proto tcp-client > >>> tls-client > >>> dev tap > >>> dev-node tap0 > >>> nobind > >>> cert D:\\OpenVPN\\easy-rsa\\keys\\Tiger.crt > >>> key D:\\OpenVPN\\easy-rsa\\keys\\Tiger.key > >>> ca D:\\OpenVPN\\easy-rsa\\keys\\ca.crt > >>> ifconfig 192.168.10.11 255.255.255.0 > >>> keepalive 10 120 > >>> comp-lzo > >>> verb 4 > >>> mute 10 > >>> -------------------------------------------- > >>> > >>> Output of Server： > >>> −−−−−−−−−−−−−−−−−−−−−− > >>> Wed Nov 7 22:46:52 2007 us=395451 OpenVPN 2.0.9 mipsel-unknown-linux > >>> [SSL] [LZO] built on Oct 8 2007 > >>> Wed Nov 7 22:46:53 2007 us=139174 Diffie-Hellman initialized with > >>> 1024 bit key > >>> Wed Nov 7 22:46:53 2007 us=167393 LZO compression initialized > >>> Wed Nov 7 22:46:53 2007 us=177324 Control Channel MTU parms [ L:1576 > >>> D:140 EF:40 EB:0 ET:0 EL:0 ] > >>> Wed Nov 7 22:46:53 2007 us=207122 TUN/TAP device tap0 opened > >>> Wed Nov 7 22:46:53 2007 us=209204 TUN/TAP TX queue length set to 100 > >>> Wed Nov 7 22:46:53 2007 us=211730 /sbin/ifconfig tap0 192.168.10.11 > >>> netmask 255.255.255.0 > >>> mtu 1500 broadcast 192.168.10.255 > >>> > >>> Wed Nov 7 22:46:53 2007 us=276813 Data Channel MTU parms [ L:1576 > >>> D:1450 EF:44 EB:135 ET:32 EL:0 AF:3/1 ] > >>> Wed Nov 7 22:46:53 2007 us=278702 GID set to nobody > >>> Wed Nov 7 22:46:53 2007 us=279692 UID set to nobody > >>> Wed Nov 7 22:46:53 2007 us=280933 Listening for incoming TCP > >>> connection on 123.45.67.89:8080 > >>> > >>> Wed Nov 7 22:47:00 2007 us=344674 TCP connection established with > >>> 98.76.54.32:48883 > >>> > >>> Wed Nov 7 22:47:00 2007 us=345622 Socket Buffers: R=[43689->65534] > >>> S=[16384->65534] > >>> Wed Nov 7 22:47:00 2007 us=346587 TCPv4_SERVER link local (bound): > >>> 123.45.67.89:8080 > >>> > >>> Wed Nov 7 22:47:00 2007 us=347462 TCPv4_SERVER link remote: > >>> 98.76.54.32:48883 > >>> > >>> Wed Nov 7 22:47:00 2007 us=354161 TLS: Initial packet from > >>> 98.76.54.32:48883 sid=2e4d871b 12ba58ca > >>> > >>> Wed Nov 7 22:47:02 2007 us=930794 VERIFY OK: depth=1, > >>> /C=CN/ST=SH/L=SH/O=Company/OU=Building_3_/CN=WR850G/Email=xxx@xxxxxxx > >>> <mailto:xxx@xxxxxxx> > >>> > >>> Wed Nov 7 22:47:02 2007 us=953126 VERIFY OK: depth=0, > >>> /C=CN/ST=SH/O=Company/OU=Building_3_/CN=Tiger/Email= xxx@xxxxxxx > >>> <mailto:xxx@xxxxxxx> > >>> > >>> Wed Nov 7 22:47:04 2007 us=189347 Data Channel Encrypt: Cipher > >>> 'BF-CBC' initialized with 128 bit key > >>> Wed Nov 7 22:47:04 2007 us=192065 Data Channel Encrypt: Using 160 bit > >>> message hash 'SHA1' for HMAC authentication > >>> Wed Nov 7 22:47:04 2007 us=196237 Data Channel Decrypt: Cipher > >>> 'BF-CBC' initialized with 128 bit key > >>> Wed Nov 7 22:47:04 2007 us=198498 Data Channel Decrypt: Using 160 bit > >>> message hash 'SHA1' for HMAC authentication > >>> Wed Nov 7 22:47:04 2007 us=388832 Control Channel: TLSv1, cipher > >>> TLSv1/SSLv3 EDH-RSA-DES-CBC3-SHA, 1024 bit RSA > >>> Wed Nov 7 22:47:04 2007 us=392021 [Tiger] Peer Connection Initiated > >>> with 98.76.54.32:48883 > >>> > >> > >> > >>> Wed Nov 7 22:47:05 2007 us=629230 Initialization Sequence Completed > >>> −−−−−−−−−−−−−−−−−−−−−− > >>> > >>> Output of Client： > >>> ----------------------------------------------------- > >>> Thu Nov 08 14:46:58 2007 us=24485 Current Parameter Settings: > >>> Thu Nov 08 14:46:58 2007 us=24531 config = 'client.ovpn' > >>> Thu Nov 08 14:46:58 2007 us=24541 mode = 0 > >>> Thu Nov 08 14:46:58 2007 us=24552 show_ciphers = DISABLED > >>> Thu Nov 08 14:46:58 2007 us=24562 show_digests = DISABLED > >>> Thu Nov 08 14:46:58 2007 us=24572 show_engines = DISABLED > >>> Thu Nov 08 14:46:58 2007 us=24582 genkey = DISABLED > >>> Thu Nov 08 14:46:58 2007 us=24593 key_pass_file = '[UNDEF]' > >>> Thu Nov 08 14:46:58 2007 us=24603 show_tls_ciphers = DISABLED > >>> Thu Nov 08 14:46:58 2007 us=24614 proto = 2 > >>> Thu Nov 08 14:46:58 2007 us=24624 NOTE: --mute triggered... > >>> Thu Nov 08 14:46:58 2007 us=24651 188 variation(s) on previous 10 > >>> message(s) suppressed by --mute > >>> Thu Nov 08 14:46:58 2007 us=24666 OpenVPN 2.0.9 Win32-MinGW [SSL] > >>> [LZO] built on Oct 1 2006 > >>> Thu Nov 08 14:46:58 2007 us=24748 IMPORTANT: OpenVPN's default port > >>> number is now 1194, based on an official port number assignment by > >>> IANA. OpenVPN 2.0-beta16 and earlier used 5000 as the default port. > >>> Thu Nov 08 14:46:58 2007 us=24763 WARNING: No server certificate > >>> verification method has been enabled. See > >>> http://openvpn.net/howto.html#mitm for more info. > >>> Thu Nov 08 14:46:58 2007 us=26495 LZO compression initialized > >>> Thu Nov 08 14:46:58 2007 us=26589 Control Channel MTU parms [ L:1576 > >>> D:140 EF:40 EB:0 ET:0 EL:0 ] > >>> Thu Nov 08 14:46:58 2007 us=46092 TAP-WIN32 device [tap0] opened: > >>> \\.\Global\{B45A907D-B030-4F6F-9FE1-001F6C3AEB48}.tap > >>> Thu Nov 08 14:46:58 2007 us=46122 TAP-Win32 Driver Version 8.4 > >>> Thu Nov 08 14:46:58 2007 us=46135 TAP-Win32 MTU=1500 > >>> Thu Nov 08 14:46:58 2007 us=46156 Notified TAP-Win32 driver to set a > >>> DHCP IP/netmask of 192.168.10.11/255.255.255.0 > >>> on interface > >>> > >>> {B45A907D-B030-4F6F-9FE1-001F6C3AEB48} [DHCP-serv: 192.168.10.0 > >>> lease-time: 31536000] > >>> > >>> Thu Nov 08 14:46:58 2007 us=53796 Successful ARP Flush on interface > >>> [3] {B45A907D-B030-4F6F-9FE1-001F6C3AEB48} > >>> Thu Nov 08 14:46:58 2007 us=55539 Data Channel MTU parms [ L:1576 > >>> D:1450 EF:44 EB:135 ET:32 EL:0 AF:3/1 ] > >>> Thu Nov 08 14:46:58 2007 us=55586 Local Options String: 'V4,dev-type > >>> tap,link-mtu 1576,tun-mtu 1532,proto TCPv4_CLIENT,ifconfig > >>> 192.168.10.0 255.255.255.0 > >>> ,comp-lzo,cipher BF-CBC,auth SHA1,keysize > >>> > >>> 128,key-method 2,tls-client' > >>> Thu Nov 08 14:46:58 2007 us=55602 Expected Remote Options String: > >>> 'V4,dev-type tap,link-mtu 1576,tun-mtu 1532,proto > >>> TCPv4_SERVER,ifconfig 192.168.10.0 255.255.255.0 > >>> ,comp-lzo,cipher BF-CBC,auth SHA1,keysize > >>> > >>> 128,key-method 2,tls-server' > >>> Thu Nov 08 14:46:58 2007 us=55634 Local Options hash (VER=V4): '1b763cc3' > >>> Thu Nov 08 14:46:58 2007 us=55652 Expected Remote Options hash > >>> (VER=V4): '2f5a5592' > >>> Thu Nov 08 14:46:58 2007 us=55680 Attempting to establish TCP > >>> connection with 127.0.0.1:3128 > >>> > >>> Thu Nov 08 14:46:58 2007 us=63009 TCP connection established with > >>> 127.0.0.1:3128 > >>> > >>> Thu Nov 08 14:46:58 2007 us=63039 Send to HTTP proxy: 'CONNECT > >>> xxx.xxx.org:8080 HTTP/1.0' > >>> > >>> Thu Nov 08 14:46:59 2007 us=159521 HTTP proxy returned: 'HTTP/1.1 200 > >>> Connection established' > >>> Thu Nov 08 14:47:01 2007 us=158850 Socket Buffers: R=[8192->8192] > >>> S=[8192->8192] > >>> Thu Nov 08 14:47:01 2007 us=159020 TCPv4_CLIENT link local: > >>> 172.24.201.50 > >>> > >>> Thu Nov 08 14:47:01 2007 us=159037 TCPv4_CLIENT link remote: > >>> 127.0.0.1:3128 > >>> > >>> Thu Nov 08 14:47:01 2007 us=390961 TLS: Initial packet from > >>> 127.0.0.1:3128 , sid=9696962b 6944c74a > >>> > >>> Thu Nov 08 14:47:03 2007 us=206615 VERIFY OK: depth=1, > >>> /C=CN/ST=SH/L=SH/O=Company/OU=Building_3_/CN=WR850G/emailAddress= > >>> xxx@xxxxxxx <mailto:xxx@xxxxxxx> > >>> > >>> Thu Nov 08 14:47:03 2007 us=208774 VERIFY OK: depth=0, > >>> /C=CN/ST=SH/O=Company/OU=Building_3_/CN=Server/emailAddress=xxx@xxxxxxx > >>> <mailto:xxx@xxxxxxx> > >>> > >>> Thu Nov 08 14:47:05 2007 us=389449 NOTE: Options consistency check may > >>> be skewed by version differences > >>> Thu Nov 08 14:47:05 2007 us=389494 WARNING: 'version' is used > >>> inconsistently, local='version V4', remote='version V0 UNDEF' > >>> Thu Nov 08 14:47:05 2007 us=389513 WARNING: 'dev-type' is present in > >>> local config but missing in remote config, local='dev-type tap' > >>> Thu Nov 08 14:47:05 2007 us=389531 WARNING: 'link-mtu' is present in > >>> local config but missing in remote config, local='link-mtu 1576' > >>> Thu Nov 08 14:47:05 2007 us=389549 WARNING: 'tun-mtu' is present in > >>> local config but missing in remote config, local='tun-mtu 1532' > >>> Thu Nov 08 14:47:05 2007 us=389571 WARNING: 'proto' is present in > >>> local config but missing in remote config, local='proto TCPv4_SERVER' > >>> Thu Nov 08 14:47:05 2007 us=389607 WARNING: 'ifconfig' is present in > >>> local config but missing in remote config, local='ifconfig > >>> 192.168.10.0 255.255.255.0 ' > >>> > >>> Thu Nov 08 14:47:05 2007 us=389625 WARNING: 'comp-lzo' is present in > >>> local config but missing in remote config, local='comp-lzo' > >>> Thu Nov 08 14:47:05 2007 us=389643 WARNING: 'cipher' is present in > >>> local config but missing in remote config, local='cipher BF-CBC' > >>> Thu Nov 08 14:47:05 2007 us=389659 WARNING: 'auth' is present in local > >>> config but missing in remote config, local='auth SHA1' > >>> Thu Nov 08 14:47:05 2007 us=389673 NOTE: --mute triggered... > >>> Thu Nov 08 14:47:05 2007 us=389977 3 variation(s) on previous 10 > >>> message(s) suppressed by --mute > >>> Thu Nov 08 14:47:05 2007 us=389991 Data Channel Encrypt: Cipher > >>> 'BF-CBC' initialized with 128 bit key > >>> Thu Nov 08 14:47:05 2007 us=390009 Data Channel Encrypt: Using 160 bit > >>> message hash 'SHA1' for HMAC authentication > >>> Thu Nov 08 14:47:05 2007 us=390090 Data Channel Decrypt: Cipher > >>> 'BF-CBC' initialized with 128 bit key > >>> Thu Nov 08 14:47:05 2007 us=390106 Data Channel Decrypt: Using 160 bit > >>> message hash 'SHA1' for HMAC authentication > >>> Thu Nov 08 14:47:05 2007 us=390453 Control Channel: TLSv1, cipher > >>> TLSv1/SSLv3 EDH-RSA-DES-CBC3-SHA, 1024 bit RSA > >>> Thu Nov 08 14:47:05 2007 us=390487 [Server] Peer Connection Initiated > >>> with 127.0.0.1:3128 > >>> > >>> Thu Nov 08 14:47:06 2007 us=630508 TEST ROUTES: 0/0 succeeded len=-1 > >>> ret=1 a=0 u/d=up > >>> Thu Nov 08 14:47:06 2007 us=630535 Initialization Sequence Completed > >>> ---------------------------------------------------------- > >>> > >>> > >>> Why there're so many WARNINGS: > >>> > >>> 1.Both client and server use same version - 2.0.9，why does the client______________________ OpenVPN mailing lists https://lists.sourceforge.net/lists/listinfo/openvpn-users |