Icom IC-905 Advanced Manual page 175

12
ABOUT THE DV GATEWAY FUNCTION
Setting up a network
About the UDP Hole Punch function
When both the caller station and the called station use the Terminal or Access Point mode, the caller station does
not need to:
• Forward port 40000 when connecting to the Internet using the router�
• Use a device assigned a static or dynamic Global IP address�
CQ CQ CQ, CQ CQ CQ,
this is JA3YUA� this is JA3YUA�
Caller Caller
L Information
• Depending on your Network environment, you may not be able to use this function�
• The caller station must set "UDP Hole Punch" to "ON" in the IC-905 (When using the Internal Gateway function) or RS-
MS3W/RS-MS3A (When using the External Gateway function) to use this function�
» 2 > DV GW > Internal Gateway Settings > UDP Hole Punch
When not using this function, set "UDP Hole Punch" to "OFF�"
• A few minutes* after the call, the caller station cannot receive from the called station� In this case, the caller station must
transmit to the called station again�
* Less than 3 minutes, depending on the router�
NOTE:
• When using the External Gateway function, use version 1�30 or later of the RS-MS3W/RS-MS3A application software�
• The caller station cannot communicate with the called station when:
- The caller station is using an earlier version software or firmware.
- The called station using an earlier version software or firmware.
- The called station calls through a local repeater instead of using the Terminal or Access Point mode�
• Even if using the latest version, the called station needs to forward port 40000 when connecting to the Internet using a
router, or to use a device assigned a static or dynamic Global IP address to communicate with the caller station�
Called Called
INTERNET INTERNET
No need to Forward
forward port 40000. port 40000.
INTERNET INTERNET
Not forwarding
port 40000
12-6
Called Called
JA3YUA, JA3YUA,
this is JM1ZLK� this is JM1ZLK�
Forwarding
port 40000
Caller Caller
CQ CQ CQ, CQ CQ CQ,
this is JM1ZLK� this is JM1ZLK�