^ Let's correct some:
Your MODEM(your router 1)
WAN Connection: (what to put?)
Advertisement Period (in minutes): not sure what is this?
Advertisement Time to Live (in hoops): not sure what is this?
Please DISABLE or OFF UPnP. DMZ is what we are doing here which OPENs all ports to the specific IP.
DMZ Setup : ON
WAN Connection: (what to put?)
DMZ Host IP Address: 192.168.0.10 (router 2 IP Address is that correct?)
MAC : ON
your WAN connection. What option is there? AFAIK that's where your DSL port/settings should be. Sorry I am on FiberHome modem so have no idea.
But your DMZ Host IP: 192.168.254.xxx (eg: 192.168.254.100). Since this is Modem DHCP it only entertains IP within it's subnet.
Port Forwarding: Have to setup or not?
Nope not on Globe's modem. Since we already DMZ'd it to your router. Basically ALL ports are open for that specific IP.
WAN IP Address: 192.168.254.254 (Guessing here to use Router 1 IP address)
Primary DNS Server: 192.168.254.254
WAN IP address: Should be what you set in the DMZ IP. So change this to example 192.168.254.100.
Gateway correct. DNS server you can change that as you like. I recommend primary: 188.8.131.52 and 184.108.40.206 secondary.
Static IP on WAN Port: 192.168.0.10 (correct or not? Does it have to be the same as the LAN IP Address?)
Nope. Should be the same as Globe's modem LAN which is 192.168.254.1 to 192.168.254.253.
NAT: ON (Guessing here. Not sure if it will cause double NAT issues. Please comment.)
FIREWALL: IPv4 IPv6: ON
Internet Connection: through Static IP
UPnP: ON (but recommended OFF.)
So this is what your WAN settings on your router should look like:
Protocol: Static IP.
WAN IP Address: 192.168.254.100
WAN Subnet: 255.255.255.0
WAN Gateway: 192.168.254.254
Primary DNS: 220.127.116.11
Secondary DNS: 18.104.22.168
(If you want Globe's own DNS then remove secondary DNS and set Primary DNS to 192.168.254.254.)
1) Do I enable the DHCP on BOTH the main modem/router (ie the ZTE ZHXN H108N) and secondary router (TP Link AC2300)? Will it conflict each other? What range should I put on both? Does it have to be very different IP address range?
2) Will connecting two routers caused double NAT? Will that even be an issue?
3) How about Voip? Will it be effected?
4) How about the UPnP? Do i enable it on both or none?
5) What internet connection type do I choose on the secondary router TP Link AC2300 since it offered 5 types (Dynamic IP, Static IP, PPPoE, L2TP and PPTP)?
7) Should I turn off the wireless radio on the ISP modem/router (ZTE)?
1. Yes but can be no for main modem. But for less hassle let's leave it on. Secondary router yes its a must since that's giving your connected devices network settings to browse/use internet without configuring other than setting up wifi password.
2. It will. With right config that would not be a problem. Since DMZ is at work here we effectively ignore firewall settings on Modem and your TP-Link will be handling it. Ala "bridged" mode.
3. Voip will not be affected since we just turned on a switch sa modem (DMZ) without changing ISP configuration.
4. If u want you can enable it. But enable it on your TP-Link only.
5. So as stated above: Static IP. (Dynamic IP will work since we did not turn off DHCP as stated on question 1, unless you want control).
6. What is your use case? If you want everyone to use your TP-Link then yes turn off the wireless radio on your ISP modem. (they're shit anyway).