Unable resolve internal DNS queries when using iOS and a split tunnel through APM
Hi All,
Am setting up APM for use as a SSL VPN for various different client systems. In general things are working well.
Do have a problem with iOS devices and DNS though. If I use a Full tunnel (i.e. dont allow split tunnels) then resolving of internal DNS names works fine. Though when I change to allow a split tunnel (so that the users can access other Internet resources) then DNS requests don't seem to come in through the tunnel at all.
If I do a tcpdump on the F5 I don't see any DNS requests at all - hence internal addresses won't resolve. I am guessing that it is using the carriers DNS servers instead of the ones I have specified?
Is there a known way to resolve this? Is this a general iOS limitation or a limitation (or misconfiguration) of the VPN on the F5?
Jason