Hello All,
We have an Aruba IAP 225 setup with 3 SSID's (only 1 of which can reach internal network), clients that are connected to the internal corporate SSID are not able to resolve internal DNS queries (IAP is not handling internal DNS). The reason I posted on the Airheads forum is because with a laptop when I have a wired connection internal DNS queries are resolved correctly - BUT when same laptop is on wireless nslookup command just returns: <dns hostname> can't find <hostname>: Non-existen domain.
There is no issue of connectivity between the client and the DNS server (i.e. can reach any internal resources via IP address). External DNS is resolved just fine (set for Google DNS, 8.8.8.8). Packet captures show that the client request is sent and received by DNS server but on the server side you only see the initial PTR query for the DNS server and the server response packet - then nothing else. On the client side you see the PTR query and then the A and AAAA response of "no such name".
I just can't seem to figure out why it only works when wired and not on wireless. Also another curious thing is the SOA on those packet captures on the client side show a0.nic.global which is definitely not the hostname of our DNS server, when wired the SOA shows correctly as the DNS server hostname.
I have checked all the permissions and settings for non-domain DNS (plus tested with domain joined laptops) and have this issue of not being able to resolve internal DNS.
Aruba OS is on v6.5.2.0 Build 59123
DNS is set for internal DNS server in DHCP settings
Any input would be much appreciated. Thanks