Grandstream HT502 User Manual - Manual (Page 32)

FIRMWARE VERSION 1.0.14.1 HT502 USER MANUAL Page 30 of 54
Device Mode This parameter controls whether the device is working in NAT router mode or Bridge
mode. Save the setting and reboot prior to configuring HT502.
NAT Maximum Ports 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 TCP Timeout NAT TCP idle timeout in seconds. Connection will be closed after preconfigured, timeout
if not refreshed. Range: 0 - 3600
NAT UDP Timeout NAT TCP idle timeout in seconds. Connection will be closed after preconfigured, timeout
if not refreshed. Range: 0 – 3600, default is 300
Uplink Bandwidth 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. 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. See figure 3.
Downlink Bandwidth 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. 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. See figure 3.
Enable UPnP When set to “Yes”, the HT502 acts as an UPnP gateway for your UPnP enabled
applications. UPnP = “Universal Plug and Play”
Reply to ICMP on WAN
Port
Default is No. When set to “Yes”, the HT502 responds to the PING command from other
computers, but is also made vulnerable to DOS attacks.
WAN Side HTTP/Telnet
Access
Default is No. When set to “Yes”, the user can access the web configuration pages
through the WAN port, instead of through the PC port. Warning: this configuration is less
secure than the default option.