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[Openvpn-users] [solved] I have tap0,1,2 but need tap3


  • Subject: [Openvpn-users] [solved] I have tap0,1,2 but need tap3
  • From: "markus.klein" <markus.klein@xxxxxxxxxxx>
  • Date: Mon, 12 Nov 2007 08:43:12 +0100 (CET)

Withdrawal !
I rebooted again and tried '/etc/init.d/openvpn stop' and there it stopped.
So the server was running on the clientside. That was the problem. No tap0,1,2 anymore.
Note to myself: more coffee, more thinking !

-------------------------------------------------------------

Hello

I have set up openvpn server (Ubuntu) and a gentoo-Linux client that
functions as I want it.
Now I copied all client files over to another Ubuntu 7.10 and there I
have some problems again.
On the new Ubuntu client after startup ifconfig shows tap0 (10.0.0.1),
tap1 (10.0.0.2), tap2 (10.0.0.2).
I need none of them by default. I don't know why they show up after
startup (I think since I have done "apt-get install openvpn".)
"/etc/init.d/openvpn stop" shows that it is not running by default (no
PID).
Anyway tap3 does not exist (ifconfig tap3 ..up -> "no such device").
Not that I need it but on this client the openvpn-command would
obviously like it (and because it's not there it does 'PUSH_REQUEST'
(status=1) exit with error):
What can I do ?

http://www.students.meduniwien.ac.at/~n9308317/client.conf
http://www.students.meduniwien.ac.at/~n9308317/server.conf

root@Neuro-Ubuntu:/etc/openvpn# openvpn --config
/etc/openvpn/client.conf
Fri Nov 9 08:51:41 2007 OpenVPN 2.0.9 i486-pc-linux-gnu [SSL] [LZO]
[EPOLL] built on May 21 2007
Fri Nov 9 08:51:41 2007 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.
Fri Nov 9 08:51:41 2007 WARNING: No server certificate verification
method has been enabled. See http://openvpn.net/howto.html#mitm for
more info.
Fri Nov 9 08:51:41 2007 WARNING: file
'/etc/openvpn/certs/serverkey.pem' is group or others accessible
Fri Nov 9 08:51:41 2007 LZO compression initialized
Fri Nov 9 08:51:41 2007 WARNING: normally if you use --mssfix and/or
--fragment, you should also set --tun-mtu 1500 (currently it is 1492)
Fri Nov 9 08:51:41 2007 Control Channel MTU parms [ L:1568 D:140 EF:40
EB:0 ET:0 EL:0 ]
Fri Nov 9 08:51:41 2007 Data Channel MTU parms [ L:1568 D:1450 EF:44
EB:135 ET:32 EL:0 AF:3/1 ]
Fri Nov 9 08:51:41 2007 Local Options hash (VER=V4): 'e16d6f87'
Fri Nov 9 08:51:41 2007 Expected Remote Options hash (VER=V4):
'29f4dc48'
Fri Nov 9 08:51:41 2007 Attempting to establish TCP connection with
10.196.8.14:3128
Fri Nov 9 08:51:41 2007 TCP connection established with
10.196.8.14:3128
Fri Nov 9 08:51:41 2007 Send to HTTP proxy: 'CONNECT *.*.*.*:443
HTTP/1.0'
Fri Nov 9 08:51:42 2007 HTTP proxy returned: 'HTTP/1.0 200 Connection
established'
Fri Nov 9 08:51:42 2007 TCPv4_CLIENT link local: [undef]
Fri Nov 9 08:51:42 2007 TCPv4_CLIENT link remote: 10.196.8.14:3128
Fri Nov 9 08:51:42 2007 TLS: Initial packet from 10.196.8.14:3128,
sid=d7357f4b b7c547bc
Fri Nov 9 08:51:43 2007 VERIFY OK: depth=1, /C=AT/ST=****
Fri Nov 9 08:51:43 2007 VERIFY OK: depth=0, /C=AT/ST=****
Fri Nov 9 08:51:43 2007 Data Channel Encrypt: Cipher 'BF-CBC'
initialized with 128 bit key
Fri Nov 9 08:51:43 2007 Data Channel Encrypt: Using 160 bit message
hash 'SHA1' for HMAC authentication
Fri Nov 9 08:51:43 2007 Data Channel Decrypt: Cipher 'BF-CBC'
initialized with 128 bit key
Fri Nov 9 08:51:43 2007 Data Channel Decrypt: Using 160 bit message
hash 'SHA1' for HMAC authentication
Fri Nov 9 08:51:43 2007 Control Channel: TLSv1, cipher TLSv1/SSLv3
DHE-RSA-AES256-SHA, 1024 bit RSA
Fri Nov 9 08:51:43 2007 [Moxen] Peer Connection Initiated with
10.196.8.14:3128
Fri Nov 9 08:51:44 2007 SENT CONTROL [Moxen]: 'PUSH_REQUEST' (status=1)
Fri Nov 9 08:51:45 2007 PUSH: Received control message:
'PUSH_REPLY,ping 10,ping-restart 120,ifconfig 10.0.0.2 255.255.255.0'
Fri Nov 9 08:51:45 2007 OPTIONS IMPORT: timers and/or timeouts modified
Fri Nov 9 08:51:45 2007 OPTIONS IMPORT: --ifconfig/up options modified
Fri Nov 9 08:51:45 2007 TUN/TAP device tap3 opened
Fri Nov 9 08:51:45 2007 ifconfig tap3 10.0.0.2 netmask 255.255.255.0
mtu 1492 broadcast 10.0.0.255
Fri Nov 9 08:51:45 2007 Initialization Sequence Completed
Fri Nov 9 08:51:46 2007 Connection reset, restarting [0]
Fri Nov 9 08:51:46 2007 TCP/UDP: Closing socket
Fri Nov 9 08:51:46 2007 SIGUSR1[soft,connection-reset] received,
process restarting
Fri Nov 9 08:51:46 2007 Restart pause, 5 second(s)
Fri Nov 9 08:51:51 2007 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.
Fri Nov 9 08:51:51 2007 WARNING: No server certificate verification
method has been enabled. See http://openvpn.net/howto.html#mitm for
more info.
Fri Nov 9 08:51:51 2007 Re-using SSL/TLS context
Fri Nov 9 08:51:51 2007 LZO compression initialized
Fri Nov 9 08:51:51 2007 WARNING: normally if you use --mssfix and/or
--fragment, you should also set --tun-mtu 1500 (currently it is 1492)
Fri Nov 9 08:51:51 2007 Control Channel MTU parms [ L:1568 D:140 EF:40
EB:0 ET:0 EL:0 ]
Fri Nov 9 08:51:51 2007 Data Channel MTU parms [ L:1568 D:1450 EF:44
EB:135 ET:32 EL:0 AF:3/1 ]
Fri Nov 9 08:51:51 2007 Local Options hash (VER=V4): 'e16d6f87'
Fri Nov 9 08:51:51 2007 Expected Remote Options hash (VER=V4):
'29f4dc48'
Fri Nov 9 08:51:51 2007 Attempting to establish TCP connection with
10.196.8.14:3128
Fri Nov 9 08:51:51 2007 TCP connection established with
10.196.8.14:3128
Fri Nov 9 08:51:51 2007 Send to HTTP proxy: 'CONNECT *.*.*.*:443
HTTP/1.0'
Fri Nov 9 08:51:52 2007 HTTP proxy returned: 'HTTP/1.0 200 Connection
established'
Fri Nov 9 08:51:52 2007 TCPv4_CLIENT link local: [undef]
Fri Nov 9 08:51:52 2007 TCPv4_CLIENT link remote: 10.196.8.14:3128
Fri Nov 9 08:51:52 2007 TLS: Initial packet from 10.196.8.14:3128,
sid=4e61ed3c c57396e8
Fri Nov 9 08:51:53 2007 VERIFY OK: depth=1, /C=AT/ST=****
Fri Nov 9 08:51:53 2007 VERIFY OK: depth=0, /C=AT/ST=****
Fri Nov 9 08:51:54 2007 Data Channel Encrypt: Cipher 'BF-CBC'
initialized with 128 bit key
Fri Nov 9 08:51:54 2007 Data Channel Encrypt: Using 160 bit message
hash 'SHA1' for HMAC authentication
Fri Nov 9 08:51:54 2007 Data Channel Decrypt: Cipher 'BF-CBC'
initialized with 128 bit key
Fri Nov 9 08:51:54 2007 Data Channel Decrypt: Using 160 bit message
hash 'SHA1' for HMAC authentication
Fri Nov 9 08:51:54 2007 Control Channel: TLSv1, cipher TLSv1/SSLv3
DHE-RSA-AES256-SHA, 1024 bit RSA
Fri Nov 9 08:51:54 2007 [Moxen] Peer Connection Initiated with
10.196.8.14:3128
Fri Nov 9 08:51:55 2007 SENT CONTROL [Moxen]: 'PUSH_REQUEST' (status=1)
Fri Nov 9 08:51:55 2007 PUSH: Received control message:
'PUSH_REPLY,ping 10,ping-restart 120,ifconfig 10.0.0.2 255.255.255.0'
Fri Nov 9 08:51:55 2007 OPTIONS IMPORT: timers and/or timeouts modified
Fri Nov 9 08:51:55 2007 OPTIONS IMPORT: --ifconfig/up options modified
Fri Nov 9 08:51:55 2007 Preserving previous TUN/TAP instance: tap3
Fri Nov 9 08:51:55 2007 Initialization Sequence Completed
Fri Nov 9 08:51:58 2007 Connection reset, restarting [0]
Fri Nov 9 08:51:58 2007 TCP/UDP: Closing socket
Fri Nov 9 08:51:58 2007 SIGUSR1[soft,connection-reset] received,
process restarting
Fri Nov 9 08:51:58 2007 Restart pause, 5 second(s)
Fri Nov 9 08:52:01 2007 Closing TUN/TAP interface
Fri Nov 9 08:52:01 2007 SIGINT[hard,init_instance] received, process
exiting
root@Neuro-Ubuntu:/etc/openvpn#




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