[vpn-help] Windows 10 - Cisco ASA - DNS Not Working

Brian belstsrv at gmail.com
Wed Sep 23 08:41:50 CDT 2015


Thank you for your reply Jim.

I do not see a place to select any adapter settings in the policy area, 
unless perhaps I am missing something or need to change another setting 
to allow that?

On 9/23/2015 8:49 AM, Jim Dettman wrote:
>  If I remember correctly from when I tripped over this, the issue was 
> that I didn't select the virtual adapter in the policy.
> Jim.
>
> ------------------------------------------------------------------------
> *From:* vpn-help [mailto:vpn-help-bounces at lists.shrew.net] *On Behalf 
> Of *Brian
> *Sent:* Wednesday, September 23, 2015 08:36 AM
> *To:* vpn-help at lists.shrew.net
> *Subject:* [vpn-help] Windows 10 - Cisco ASA - DNS Not Working
>
> Hello All.
>
> I purchased the Shrew VPN client a few weeks ago as I upgraded my 
> laptop to Windows 10, knowing that the Cisco client does not work on 
> Windows 10 and I had good success using the free Shrew version on my 
> tablet that had Windows 8.
>
> The endpoint of the network I am trying to link in to is a Cisco ASA 
> (unsure of model).  Using Windows 7 and the Cisco client, I could 
> connect and access anything on the other end using IP or DNS names.
>
> Using Shrew though, I can connect to the VPN and ping things on the 
> other side of the network.  I can access things using IP addresses and 
> I can also access servers using DNS names but ONLY if the server has 
> no public DNS already.  Any server that has a public DNS seems to get 
> resolved by my router at my house and is not sent over the tunnel.  In 
> many cases, we have a public DNS to a server that people might use for 
> FTP connectivity, but I may want to RDP in to that server from the VPN 
> side of things. But, when I connect to the VPN and then try and RDP, I 
> get the public IP of the server and thus the RDP fails to connect.
>
> I've tried lots of combinations of Split DNS, forcing DNS servers, and 
> policy setups and nothing seems to force the VPN to be the first 
> option for DNS lookup.  I would even be OK with routing ALL the 
> traffic over the VPN if needed, although that is not optimal, I know.
>
> Does anyone have suggestions on what might be causing the VPN to not 
> be the default for lookups like the Cisco VPN client was doing?
>
> Thanks for any help you can provide!

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