[SOLVED] Unable to browse, DNS OK?

[mcampbell 0]

Using the AirVPN client on windows, I'm rather suddenly unable to browse. When I'm connected via the client, I get:

C:\l>nslookup google.com

Server: UnKnown

Address: 10.4.0.1

*** UnKnown can't find google.com: No response from server

When NOT connected, ...

C:\>nslookup google.com

Server: google-public-dns-a.google.com

Address: 8.8.8.8

Non-authoritative answer:

Name: google.com

Addresses: 2001:4860:800a::8a

74.125.45.102

74.125.45.139

74.125.45.113

74.125.45.138

74.125.45.100

74.125.45.101

Ifconfig shows:

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : TAP-Win32 Adapter V9

Physical Address. . . . . . . . . : <redacted>

DHCP Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

Link-local IPv6 Address . . . . . : fe80::69be:e043:996d:31b8%16(Preferred)

IPv4 Address. . . . . . . . . . . : 10.4.0.126(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.252

Lease Obtained. . . . . . . . . . : 24 September, 2012 11:44:06

Lease Expires . . . . . . . . . . : 24 September, 2013 11:44:06

Default Gateway . . . . . . . . . :

DHCP Server . . . . . . . . . . . : 10.4.0.125

DHCPv6 IAID . . . . . . . . . . . : 469827414

DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-17-C1-6B-0B-38-59-F9-91-C1-82

DNS Servers . . . . . . . . . . . : 10.4.0.1

NetBIOS over Tcpip. . . . . . . . : Enabled

Anything obvious?

Log:

24-Sep-12 - 11:43 AM AirVPN client version: 1.7

24-Sep-12 - 11:43 AM Reading options from C: ... \AirVPN\Air\1.0.0.0\AirVPN.xml

24-Sep-12 - 11:43 AM OpenVPN bundle version: OpenVPN 2.2.2

24-Sep-12 - 11:43 AM OpenVPN current version: OpenVPN 2.2.2

24-Sep-12 - 11:43 AM Ready.

24-Sep-12 - 11:43 AM Login...

24-Sep-12 - 11:43 AM Login success.

24-Sep-12 - 11:43 AM Contacting service...

24-Sep-12 - 11:43 AM Connecting...

24-Sep-12 - 11:43 AM OpenVPN 2.2.2 Win32-MSVC++ [sSL] [LZO2] [PKCS11] built on Dec 15 2011

24-Sep-12 - 11:43 AM NOTE: OpenVPN 2.1 requires '--script-security 2' or higher to call user-defined scripts or executables

24-Sep-12 - 11:43 AM LZO compression initialized

24-Sep-12 - 11:43 AM Control Channel MTU parms [ L:1558 D:138 EF:38 EB:0 ET:0 EL:0 ]

24-Sep-12 - 11:43 AM Socket Buffers: R=[8192->8192] S=[8192->8192]

24-Sep-12 - 11:43 AM Data Channel MTU parms [ L:1558 D:1450 EF:58 EB:135 ET:0 EL:0 AF:3/1 ]

24-Sep-12 - 11:43 AM Local Options hash (VER=V4): '22188c5b'

24-Sep-12 - 11:43 AM Expected Remote Options hash (VER=V4): 'a8f55717'

24-Sep-12 - 11:43 AM UDPv4 link local: [undef]

24-Sep-12 - 11:43 AM UDPv4 link remote: 108.59.8.147:443

24-Sep-12 - 11:43 AM TLS: Initial packet from 108.59.8.147:443, sid=9f575fcb d064ca92

24-Sep-12 - 11:43 AM VERIFY OK: depth=1, /C=IT/ST=IT/L=Perugia/O=airvpn.org/CN=airvpn.org_CA/emailAddress=info@airvpn.org

24-Sep-12 - 11:43 AM VERIFY OK: nsCertType=SERVER

24-Sep-12 - 11:43 AM VERIFY OK: depth=0, /C=IT/ST=IT/L=Perugia/O=airvpn.org/CN=server/emailAddress=info@airvpn.org

24-Sep-12 - 11:43 AM Data Channel Encrypt: Cipher 'AES-256-CBC' initialized with 256 bit key

24-Sep-12 - 11:43 AM Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication

24-Sep-12 - 11:43 AM Data Channel Decrypt: Cipher 'AES-256-CBC' initialized with 256 bit key

24-Sep-12 - 11:43 AM Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication

24-Sep-12 - 11:43 AM Control Channel: TLSv1, cipher TLSv1/SSLv3 DHE-RSA-AES256-SHA, 2048 bit RSA

24-Sep-12 - 11:43 AM [server] Peer Connection Initiated with 108.59.8.147:443

24-Sep-12 - 11:43 AM SENT CONTROL [server]: 'PUSH_REQUEST' (status=1)

24-Sep-12 - 11:44 AM SENT CONTROL [server]: 'PUSH_REQUEST' (status=1)

24-Sep-12 - 11:44 AM PUSH: Received control message: 'PUSH_REPLY,redirect-gateway def1,dhcp-option DNS 10.4.0.1,comp-lzo no,route 10.4.0.1,topology net30,ping 10,ping-restart 120,ifconfig 10.4.0.126 10.4.0.125'

24-Sep-12 - 11:44 AM OPTIONS IMPORT: timers and/or timeouts modified

24-Sep-12 - 11:44 AM OPTIONS IMPORT: LZO parms modified

24-Sep-12 - 11:44 AM OPTIONS IMPORT: --ifconfig/up options modified

24-Sep-12 - 11:44 AM OPTIONS IMPORT: route options modified

24-Sep-12 - 11:44 AM OPTIONS IMPORT: --ip-win32 and/or --dhcp-option options modified

24-Sep-12 - 11:44 AM ROUTE default_gateway=192.168.2.1

24-Sep-12 - 11:44 AM TAP-WIN32 device [Local Area Connection 2] opened: \\.\Global\{5643E732-D4E7-454D-A4E4-A9AED565A222}.tap

24-Sep-12 - 11:44 AM TAP-Win32 Driver Version 9.9

24-Sep-12 - 11:44 AM TAP-Win32 MTU=1500

24-Sep-12 - 11:44 AM Notified TAP-Win32 driver to set a DHCP IP/netmask of 10.4.0.126/255.255.255.252 on interface {5643E732-D4E7-454D-A4E4-A9AED565A222} [DHCP-serv: 10.4.0.125, lease-time: 31536000]

24-Sep-12 - 11:44 AM Successful ARP Flush on interface [16] {5643E732-D4E7-454D-A4E4-A9AED565A222}

24-Sep-12 - 11:44 AM PUSH: Received control message: 'PUSH_REPLY,redirect-gateway def1,dhcp-option DNS 10.4.0.1,comp-lzo no,route 10.4.0.1,topology net30,ping 10,ping-restart 120,ifconfig 10.4.0.126 10.4.0.125'

24-Sep-12 - 11:44 AM TEST ROUTES: 2/2 succeeded len=1 ret=1 a=0 u/d=up

24-Sep-12 - 11:44 AM C:\WINDOWS\system32\route.exe ADD 108.59.8.147 MASK 255.255.255.255 192.168.2.1

24-Sep-12 - 11:44 AM ROUTE: CreateIpForwardEntry succeeded with dwForwardMetric1=20 and dwForwardType=4

24-Sep-12 - 11:44 AM Route addition via IPAPI succeeded [adaptive]

24-Sep-12 - 11:44 AM C:\WINDOWS\system32\route.exe ADD 0.0.0.0 MASK 128.0.0.0 10.4.0.125

24-Sep-12 - 11:44 AM ROUTE: CreateIpForwardEntry succeeded with dwForwardMetric1=30 and dwForwardType=4

24-Sep-12 - 11:44 AM Route addition via IPAPI succeeded [adaptive]

24-Sep-12 - 11:44 AM C:\WINDOWS\system32\route.exe ADD 128.0.0.0 MASK 128.0.0.0 10.4.0.125

24-Sep-12 - 11:44 AM ROUTE: CreateIpForwardEntry succeeded with dwForwardMetric1=30 and dwForwardType=4

24-Sep-12 - 11:44 AM Route addition via IPAPI succeeded [adaptive]

24-Sep-12 - 11:44 AM C:\WINDOWS\system32\route.exe ADD 10.4.0.1 MASK 255.255.255.255 10.4.0.125

24-Sep-12 - 11:44 AM ROUTE: CreateIpForwardEntry succeeded with dwForwardMetric1=30 and dwForwardType=4

24-Sep-12 - 11:44 AM Route addition via IPAPI succeeded [adaptive]

24-Sep-12 - 11:44 AM Initialization Sequence Completed

24-Sep-12 - 11:44 AM Starting Management Interface...

24-Sep-12 - 11:44 AM Checking...

24-Sep-12 - 11:44 AM Retrieve statistics...

24-Sep-12 - 11:44 AM Connected.

24-Sep-12 - 11:47 AM Disconnecting...

24-Sep-12 - 11:47 AM SIGTERM received, sending exit notification to peer

24-Sep-12 - 11:47 AM TCP/UDP: Closing socket

24-Sep-12 - 11:47 AM Disconnected.

24-Sep-12 - 11:47 AM C:\WINDOWS\system32\route.exe DELETE 10.4.0.1 MASK 255.255.255.255 10.4.0.125

24-Sep-12 - 11:47 AM Route deletion via IPAPI succeeded [adaptive]

24-Sep-12 - 11:47 AM C:\WINDOWS\system32\route.exe DELETE 108.59.8.147 MASK 255.255.255.255 192.168.2.1

24-Sep-12 - 11:47 AM Route deletion via IPAPI succeeded [adaptive]

24-Sep-12 - 11:47 AM C:\WINDOWS\system32\route.exe DELETE 0.0.0.0 MASK 128.0.0.0 10.4.0.125

24-Sep-12 - 11:47 AM Route deletion via IPAPI succeeded [adaptive]

24-Sep-12 - 11:47 AM C:\WINDOWS\system32\route.exe DELETE 128.0.0.0 MASK 128.0.0.0 10.4.0.125

24-Sep-12 - 11:47 AM Route deletion via IPAPI succeeded [adaptive]

24-Sep-12 - 11:47 AM Closing TUN/TAP interface

24-Sep-12 - 11:47 AM SIGTERM[hard,] received, process exiting

[Staff 9972]

Hello!

Unfortunately nothing obvious: the logs are just fine and the TAP-Win32 Adapter looks properly configured.

Can you please send us your routing table (command "route print") before and after the connection and the output of "ipconfig /all" before and after the connection?

Kind regards

[mcampbell 0]

On a hunch, I reinstalled the "openvpn-installer" that is bundled in the windows client download, and that seems to have cleared up something, because it's working now.

Sorry for the false alarm.