Site-to-Site DNS resolution

[SteelTown]

Scratching my head on this one. 

I have main site, with windows DNS/DHCP server at 10.30.0.2/24

Made a branch office, no servers, 10.20.0.0/24

Branch office MX68 is handling DHCP, so I set upstream DNS to use 10.30.0.2, clients grab that no problem. 

I can ping both ways, RDP both ways, but have no DNS resolution. 

Both Sites are set to HUB VPN mode, and each have each others subnets listed as remote VPN participants

[KarstenI]

Any Access-Control blocking this traffic under Organisation-wide Settings in S2S VPNs?

[SteelTown]

Hi Karstenl,

Nothing at all if am looking at the right spot.

[KarstenI]

Did you test DNS with nslookup/dig and to specify the right DNS-server? Does this work?

[ww]

Can you make a packet captures on both mx lan sides.  Filter on client ip and port 53.  Look where you traffic is lost.

[SteelTown]

Well I wish I had more info, but everything is working now. Maybe I just had to wait it out a bit longer for cloud changes to filter. 

Thank you everyone for the help!