Grandstream Networks HT502 User Manual page 38

Dual fxs port analog telephone adaptor

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LAN DHCP Base IP

Base IP Address for a LAN port. Default factory setting is 192.168.2.1.

Note: 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

LAN DHCP Start IP

Default value is 100. The last segment of IP address assigned to the HT50x in the

LAN Network. Default configuration assigns IP address (to local network devices)

starting from 192.168.2.100.

LAN DHCP End IP

Default value is 199. This parameter allows a user to limit the number of local

network devices connected to the internal router. Default configuration assigns IP

address (to devices connected to the LAN port) in a range from 192.168.2.100 up

to 192.168.2.199.

LAN Subnet Mask

Sets the LAN subnet mask. Default value is 255.255.255.0

LAN DHCP Base IP:

Base IP address for the LAN port, which functions as default gateway for its LAN.

Default value is 192.168.2.1

DHCP IP Lease Time

Default value is 120 hrs (5 days). The length of time the IP address is assigned

to the LAN clients. Value is set in units of hours.

DMZ IP:

This function forwards all WAN IP traffic to a specific IP address if no matching

port is used by HT502 or in the defined port forwarding.

Forwards a matching (TCP/UDP) port to a specific LAN IP address with a specific

Port Forwarding

(TCP/UDP) port.

HT502 User Manual

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