Cisco Anyconnect Blocks Local Network



I have an issue with the Cisco anyconnect. Once clients are connnected they can't access anything, including their default gateway. VPN client pool is in the same subnet than local network (139.16.1.x/24). Local network clients can access to DMZ, VPN clients can ping local network computers but they can't access to DMZ. Our Cisco AnyConnect module works in a similar way to the standard Roaming Client, but has a different method of intercepting DNS traffic; using a kernel driver rather than modifying DNS server settings on the network interface. Therefore this product is not affected by the NCSI limitation. Hi Guys, I have implemented Cisco AnyConnect on our ASA, all goes good untill I have notices that while connected to the VPN I had no access to the internal LAN, after some reading on Cisco website i have changed the DfltGrppolicy to restrict access to only 1 vlan (Vlan 10) since this it has all gone downhill, at the moment no matter what NAT rulles I do I seem to only have access to Vlan 10.

I use Cisco AnyConnect on my Windows 7 computer to make VPN connections. It also has capability to connect to WiFi. But I always had problems in connecting toWiFi with AnyConnect. Connection drops frequently and it keeps saying ‘Acquiring IP address‘.

AnyConnect installs a service called ‘Network Access Manager‘ which seems like takes over the native Windows WiFi connecting client. So when I click on the network icon in the System tray it says ‘No connections are available'(See below snapshot). Without AnyConnect, it always displays the WiFi connections available.

If you are facing the problem then you can try the following solution that worked for me.

  • Open Services management console by running Services.msc from Run
  • Find the service ‘Cisco AnyConnect Network Access Manager‘.
  • Right click and stop the service.
  • Now Cisco AnyConnect will say ‘NAM service unavailable
  • Now Windows will use the native WiFi client to connect to the WiFi
  • When you reboot your system, the NAM service will start and may cause problem again. You can disable this service in Services management console to prevent that.

AnyConnect has settings to disable the NAM feature. But that did not work for me. Even after disabling NAM service, I could not connect to WiFi. Windows network icon shows the WiFi connection but gives the error ‘Windows was not able to connect to…‘. I followed the below steps to do this.

  • Opened Anyconnect window and click on Advanced.
  • Clicked on ‘Networks’ tab in the left side pane.
  • Clicked on Configuration tab. Changed the NAM to disabled as shown below.

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If you use a VPN connection to securely access a workplace (e.g. your corporate network), then all network data are transferred through the VPN connection to the remote network. In simple words, the remote VPN server’s network card becomes a new route that connects your computer to the remote network and – at the same time – the VPN server becomes (by default) your new gateway to access the Internet through the remote workplace’s Internet connection.

This means that if the VPN server is set up to allow Internet connectivity (by assigning a default gateway to your computer), then you can also access the Internet via the remote network's Internet connection, otherwise if the VPN server isn’t set up to allow Internet connectivity, then you can not access Internet at all. In the first case, the Internet speed is slowed down due to line speed limits and also because all network packets are re-routed through the VPN’s server network card and in the second case, the Internet connection is impossible.

To bypass these problems and use your local Internet connection to access Internet while connected to VPN, follow the steps below:

Blocks

How to use your local Internet connection while connected in VPN.

Step 1. Change VPN connection properties.

1. To do this, go to:

  • Windows 7 & Vista: Start > Control Panel.
  • Windows XP: Start > Settings > Control Panel

Enable Local Printing While VPN Is Up - Cisco Community

  • Windows 8 & 8.1:
  1. Press “Windows” + “R” keys to load the Run dialog box.
  2. Type “control panel” and press Enter.

2. Click to open “Network and Sharing Center”:

3. In the left pane, click “Change adapter settings”.

4. Right-click at your VPN connection and click “Properties”.

5. At VPN properties, click the “Networking” tab.

6. At Networking tab, highlight the “Internet Protocol Version 4 (TCP/IPv4) item & click “Properties”.

7. Click “Advanced”.

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8. Uncheck the “Use default gateway on remote network” option and press “OK”.

9. Press “OK” until you close all windows and you ‘re done!

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Cisco Anyconnect Blocks Local Network
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Did you try disabling the client

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