GRANDSTREAM HT812 Analog FXS IP Gateway 2 Port + NAT Router User Guide

○ IP Address : Default is 192.168.100.100  

○ Subnet Mask : Default is 255.255.255.0  

○ Default Router : Default is 192.168.100.1  

○ DNS Server 1 : Default is 0.0.0.0  

○ DNS Server 2 : Default is 0.0.0.0  

● 802.1Q/VLAN Tag  

vlan tagging : [0 – 4094]; Default is 0  

● 802.1p priority value :  

priority : [0 – 7]; Default is 0  

Time Zone  

Selects time zone to define date/time on the device.  

Allows users to define their own time zone.  

Self-Defined Time Zone  

Obtains time zone setting (offset) from a DHCP server using DHCP Option 2; it will override  

selected time zone. If set to “No”, the analogue adapter will use selected time zone even if  

provided by DHCP server.  

Allow DHCP server to set Time Zone  

The Default setting is Yes.  

Configures the languages of the voice prompt and web interface, except Spanish that it is only  

in IVR. Available languages: English, Chinese, Traditional Chinese, Russian, Spanish IVR.  

Language  

NAT/DHCP Server Information & Configuration  

Controls whether the device is working in NAT router mode or Bridge mode. Save the setting  

Device Mode  

and reboot prior to configuring the HT812/HT814.  

Defines the number of ports that can be managed while in NAT router mode.  

Range: 0 – 4096, default is 1024. Typically, one port per connection.  

NAT maximum ports  

NAT TCP timeout  

NAT UDP timeout  

NAT TCP idle timeout in seconds. Connection will be closed after preconfigured, timeout if  

not refreshed. Range: 0 – 3600  

NAT TCP idle timeout in seconds. Connection will be closed after preconfigured, timeout if  

not refreshed. Range: 0 – 3600, default is 300  

Specifies the maximum uplink bandwidth permitted by the device. This function is disabled by  

default. The total bandwidth can be set as: 128K, 256K, 512K, 1M, 2M, 3M, 4M, 5M, 10M or  

15M.  

Uplink bandwidth  

The primary function of this setting is to limit the uplink bandwidth for the device internal  

system, signaling and NATed traffic. Example: When 512k is configured, there will be at least  

512kbps limited for internal system, signaling and NATed traffic. Voice or RTP stream will  

never be limited.  

Specifies the maximum downlink bandwidth permitted by the device. This function is disabled  

by default. The total bandwidth can be set as: 128K, 256K, 512K, 1M, 2M, 3M, 4M, 5M, 10M  

or 15M.  

Downlink bandwidth  

The primary function of this setting is to limit the download bandwidth for the device internal  

system, signaling and NATed traffic. Example: if 128 is configured, there will be at least  

128kbps limited for internal system, signaling and NATed traffic. Voice or RTP stream will  

never be limited.  

When set to “Yes”, the HT812/HT814 acts as an UPnP gateway for your UPnP enabled  

Enable UPnP support  

applications. UPnP = “Universal Plug and Play”  

Default is No. When set to “Yes”, the HT812/HT814 responds to the PING command from  

other computers, but is also made vulnerable to DOS attacks.  

Reply to ICMP on WAN port  

Cloned WAN MAC Addr  

This allows the user to change/set a specific MAC address on the WAN interface.  

Note: Set in Hex format  

Allows users to configure the customized VLAN tag and priority value under switch mode.  

VLAN Tag range is 0-4094, the Priority Vlaue range is 0-7.  

The Default for both is 0  

LAN Port VLAN Feature Under  

Bridge Mode  

When set to “Yes”, device will function as a simple router and LAN port will provide IP  

addresses to internal network. Connect the WAN port to ADSL/Cable modem or any other  

equipment that provides access to public Internet  

Enable LAN DHCP  

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  

Default value is 100. The last segment of IP address assigned to the HT812/HT814 in the LAN  

Network.  

LAN DHCP Start IP  

Default configuration assigns IP address (to local network devices) starting from  

192.168.2.100.  

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

devices connected to the internal router.  

LAN DHCP End IP  

LAN Subnet Mask  

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.  

Sets the LAN subnet mask. Default value is 255.255.255.0  

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General	Details
Name	GRANDSTREAM HT812 Analog FXS IP Gateway 2 Port + NAT Router User Guide
Make	GRANDSTREAM
Language	English
Filetype	PDF (Download)
File size	MB

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