I have a clientless VPN setup that has been working very well until recently. I found that certain sites, and mostly google domains like google.com and youtube were coming back with "Server google.com unavailible".
For a while I thought it was due to a firewall rule, or something I had done recently until I tried a site like reddit.com through the VPN and it works fine. I then tried to ping google.com from the ASA CLI and found that google.com is resolving to an ipv6 address while my entire network is still on ipv4, including my DNS servers that are set up.
I've tried not only 220.127.116.11 and my ISP's DNS servers to trouble shoot, but I've reverted my config back a few weeks and am running into the same issue with that. Does anyone have any idea how to block AAAA records from my ASA or what could be causing this? When I nslookup from my workstation I get only ipv4 answers.