I'm having some trouble getting DNS on my L2TP connection from my iphone to work properly.
The L2TP vpn works no problem and i can ping internal hosts, reach internal web pages by ip address etc, but if I try and load a internal or external web page via a host name (Example Web Page) it doesn't work.
If I look under the packet filter log, i can see that the dns (dest port 53) request is failing because the packet is being dropped (default drop).
Default DROP UDP 172.16.8.2:59109→172.16.5.1:53 len=63 ttl=255 tos=0x00
I have created a packet filter rule for the VPN Pool (L2TP) (which is the 172.16.8.0 network) to allow any service to any destination.
I have also allowed the VPN Pool (L2TP) in the DNS network services as an allowed network
I have under the remote access / advanced tab provided 172.16.5.1 as the dns address and can ping this address from the iphone.
Given that I have it allowed under the dns / network services config and have created a packet filter rue that should allow any traffic from the VPN Pool (L2TP), why do these dns request get dropped
Any suggestions would be much appreciated
Regards
Greg
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