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CiscoAnyconnect - affecting DNS lookup

Please help -

My DNS lookup is acting strangely after installing Cisco Anyconnect version 3.1.05170 on my new computer (Dell XPS15, Windows 10 Professional).

I work as a consultant and need to connect to several different clients using different VPN software. I installed AnyConnect first and configured it to connect to one client (let's call it vpn.client1.com).

I then installed OpenVPN client to connect to a different client, and noticed that every time I attempt to access a server without either fully qualifying the server name or specifying an IP address, my computer appends the first client's domain name to the request. I am seeing this when accessing intranet sites, servers using PuTTY, and pinging from the command line. This happens even when I'm not connected to any VPN clients.

For example: If I type "ping devserver" in a command prompt, I get the response below - I can't figure out why it's appending "client1.com" to the end of the request.:
Pinging devserver.client1.com [xxx.xxx.xxx.xxx] with 32 bytes of data

I tried clearing out my local AnyConnect preferences in my C:\Users\packe\AppData\Local\Cisco\Cisco AnyConnect Secure Mobility Client directory, but this didn't help. I see some registry entries referencing client1.com, but I don't want to touch those without an expert opinion.

Any help would be greatly appreciated!

-Dan

Ben Hart

What do you have defined in your nic properties under DNS suffix? Also what does 'ipconfig /all' show?

danpman

ASKER

Ben - thanks for the quick response! I'm not sure how to check NIC properties under DNS Suffix. ipconfig/all shows the information below. I see the suffix (client1.com) under "Windows IP Configuration".

Microsoft Windows [Version 10.0.10240]
(c) 2015 Microsoft Corporation. All rights reserved.

C:\Users\packe>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : DESKTOP-RFGES1J
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : e*******.com (Client that I initially connected to using AnyConnect)

Wireless LAN adapter Local Area Connection* 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
Physical Address. . . . . . . . . : 4A-E2-44-F4-D5-61
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Ethernet 2:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : ASIX AX88772B USB2.0 to Fast Ethernet Adapter
Physical Address. . . . . . . . . : E0-00-00-0F-DA-BE
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::936:1286:814a:b85%10(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.7(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Wednesday, January 6, 2016 9:15:11 AM
Lease Expires . . . . . . . . . . : Thursday, January 7, 2016 4:33:46 PM
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 350224384
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-1C-BE-74-48-E2-44-F4-D5-61
DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wi-Fi:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Dell Wireless 1830 802.11ac
Physical Address. . . . . . . . . : 48-E2-44-F4-D5-61
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{C71D781D-9126-4211-AFE0-6DB1DAFECF96}:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::5efe:192.168.1.7%9(Preferred)
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 150994944
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-1C-BE-74-48-E2-44-F4-D5-61
DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Disabled

Ethernet adapter Ethernet 3:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : s******.com (My company - I connect to this VPN using OpenVPN)
Description . . . . . . . . . . . : TAP-Win32 Adapter OAS
Physical Address. . . . . . . . . : 00-FF-13-FF-16-5D
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : 48-E2-44-F4-D5-62
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:9d38:6abd:3816:bbb:b459:92b4(Preferred)
Link-local IPv6 Address . . . . . : fe80::3816:bbb:b459:92b4%7(Preferred)
Default Gateway . . . . . . . . . : ::
DHCPv6 IAID . . . . . . . . . . . : 285212672
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-1C-BE-74-48-E2-44-F4-D5-61
NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Users\packe>

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Ben Hart

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danpman

ASKER

Found it - and it cleared up the problem. Thanks for your help!

-Dan

danpman

ASKER

Thanks for the QUICK answers!

Ben Hart

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