Cisco anyconnect and IPv6 - dns not working?

Question

VPN

Good day.
They gave me a remote job. I am connected through Cisco Anyconnect. As soon as a connection is established - access to dns is lost - nslookup does not work, the browser writes about a dns error. At the same time, all IPs (Yandex, Google, etc.) are pinged.
By typing, I determined that when ipv6 is disabled in the settings of the LAN adapter, everything works. Anyconnect seems to be configured only for ipv4, although ipconfig / all shows that ipv6 is also assigned.
Disabling ipv6 on the anyconnect adapter does not solve the problem. In terms of routes - vpn prescribes only one route, nothing else is affected.
I surfed the Internet - except for the advice to disable ipv6 on my computer, I did not find anything. I assume that the problem is with the vpn server, not my computer. But here is the answer from the admins - only you have a problem, so everything is ok with us :)
Of course, you can just disable ipv6, but I would like to understand what's the matter.

Answer 1

The problem is solved by enabling the Client Bypass Protocol in the Group Policy of the tunnel to which you are connecting, on the side of the Cisco ASA (VPN server).