Port Forwarding/client issues
Posted: Sun May 20, 2018 1:19 am
i connected an android phone through l2tp client that comes with the phone from Verizon. i was unable to get the connection to allow some SIP information to pass to an application on the phone. I tried to put the server in the DMZ and still no luck. I added the open VPN client and config file to the phone and was able to get the app to communicate after doing so. i have 2 questions:
1. Do Verizon and or other providers block ports or protocols through the mobile VPN client that comes with most phones? ( I was not able to configure it since i don't have access to it)
2. is it normal that a gateway would be able to block protocols or ports in a VPN? ( i was under the impression once established on a port it could bypass firewall rules for ports or protocols since it is encrypted. The only way i could get it working was to put the VPN server in the DMZ for now.)
1. Do Verizon and or other providers block ports or protocols through the mobile VPN client that comes with most phones? ( I was not able to configure it since i don't have access to it)
2. is it normal that a gateway would be able to block protocols or ports in a VPN? ( i was under the impression once established on a port it could bypass firewall rules for ports or protocols since it is encrypted. The only way i could get it working was to put the VPN server in the DMZ for now.)