Model :

Hardware Version : Not Clear

Firmware Version :

ISP :

Hi all,

I have a problem here.

My Network configuration is as follow:-

2 ADSL connectivity from my ISP.

WAN 1 connected to ADSL for the internet connectivity
WAN 2 connected to ADSL for Intranet network through PPPoE (modem ADSL set as bridge mode)


PC---------------tplink------ WAN 1 (static IP)-------------LAN 1 (ADSL modem)-----------------------------Internet
|______WAN 2 (PPPoE)--------------LAN 1 (ADSL modem bridge mode)------------Intranet network

current situation is if I dialling using modem ADSL my LAN IP can be ping from intranet network (No NAT setup as per given by my ISP)
WAN IP: 10.155.154.154/32
LAN IP: 192.168.154.1/24
PC IP: 192.168.154.2/24

My #1 Question is when I change the setup (modem as bridge) and dialling PPPoE on TPLINK port WAN2 and once PPPoE is connected my LAN IP cannot be ping. is it because of the WAN Interface is NAT?

but then I try to configure :-

Firewall > Access Rules
Policy: Allow
Service : All Services
Interface: WAN
Source: ANY
Destination: IP/MASK (192.168.154.0/24)

suddenly intranet network can ping to my LAN PC IP - (192.168.154.2).
I try to understand if WAN interface is NATed by right my LAN PC cannot be ping. Im afraid of inconsistent IP header for traffic flow when originate IP 192.168.154.2 ping to for example destination address on the intranet 192.168.5.2 thru WAN 2 IP and return with different IP direct to the host 192.168.154.2. Can anyone explain to me is it WAN port is NAT or not?


My #2 Question is I was unable to configure default route . what Im try to achieve is all default route 0.0.0.0/0 is point to WAN 1 which is the IP address is static 192.168.0.2/24 and some traffic to intranet destination. the problem is when i configure on tplink Advanced> Routing:-

Destinantion : 0.0.0.0
subnet mask: 0.0.0.0
Next Hop: 192.168.0.2
Interface: WAN 2
metric : 0
description: default route
status: active

system will give me an error Invalid IP. so anyone can help me?



/Syam