Grandstream GXW400x User Manual - Manual (Page 34)

FIRMWARE VERSION 1.0.14.1 GXW400X USER MANUAL Page 32 of 60
Downlink Bandwidth ISP specified WAN downlink bandwidth
Enable UPnP support If set to “Yes”, the GXW400X would act as an UPnP gateway for your UPnP enable
applications. UPnP - Universal Plug n Play
Reply to ICMP on WAN port If set to “Yes”, the GXW400X will respond to the PING. Default is No.
“Yes” setting may make the gateway vulnerable to a Denial of Service attack.
WAN side HTTP/Telnet
Access
If set to “Yes”, user can access the configuration page through the WAN port,
instead of through the “PC” port. WARNING: this configuration is less secure than
default option. Default is No.
White list for WAN side List the IP address or IP range in the White list
Note for list Rules:
HTTP/telnet:
Case 1: WAN side telnet/HTTP access enabled
- If white list exists, then ONLY these IP addresses are ALLOWED to web and telnet
access.
- If black list exists and white list is empty, then ONLY these IP addresses are NOT
ALLOWED to web and telnet access.
Case 2: WAN side telnet/HTTP access is not allowed:
-All addresses are NOT ALLOWED http and telnet access.
SIP/RTP:
- If both white list and black list are empty, the behaviour is same as before.
- If white list exists, then ONLY these IP addresses are ALLOWED SIP/RTP access.
- If black list exists and white list is empty, then ONLY these IP addresses are NOT
ALLOWED SIP/RTP access.
Black list for WAN side List the IP address or IP range in the White list. The same rules as white list.
Cloned WAN MAC Address This allows you to change/set the MAC address on the WAN interface.
Enable LAN DHCP Default is Yes.
LAN Subnet Mask Sets the LAN subnet mask. Default value is 255.255.255.0
LAN DHCP Base IP Base IP for the LAN port which functions as a Gateway for the subnet.
Default value is 192.168.2.1.
When the device detects WAN IP is conflicting with LAN IP, the LAN base IP
address will be changed based on the network mask -- the effective subnet will be
increased by 1. For example; 192.168.2.1 will be changed to 192.168.3.1 if net
mask is 255.255.255.0. Then the device will reboot