http://www.DBL.com FXS+FXO Gateway Series
45
3.3.3.4. Firewall Traversal
In the advanced configuration of call settings, signal and media each has firewall
configuration.
3.3.3.4.1. H.323 Signaling NAT Traversal
There are four styles as follows:
A
）
None
Select
None
to turn off this feature.
B) Nat Citron
Citron
is a dedicated firewall penetration agreement for GNUGK.
C) Port Transparent/DMZ
Port Transparent
refers that put network port of the LAN into computer or inside of the
LAN
. The actual servers allow external users enjoy the servers of internal server(
FTP
、
HTTP
、
Telnet)
.
Port Transparent
includes the Gateway address and response server address. Gateway is
communications equipment that connect two different networks, response to the server is
standard service equipment that perform ECHO protocol.
D
）
Relay proxy
Relay proxy
is a proprietary NAT traversal technology. It includes relay proxy server
address, port, username, and password.
Relay proxy makes encryption on the Gateway’s communication, this function need the
support of DBL. technology.
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