DBL Technology HTM series Manual de usuario descargar pdf (Pagina 50)

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DBL Technology Limited GoIP User Manual

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Tel: +86 755 8829 0211

A. No

The mechanism of firewall traversal is not supported.

B. Nat Citron

The Citron is a special firewall traversal protocol for GnuGK and used with GnuGK.

C. Port Transparency/DMZ

The port transparency is used to transfer the network port on the LAN interface to the computer

or the server in the LAN. This feature enables external users (through the Internet in most cases) to

share the services of internal servers (such as FTP, HTTP, and Telnet).

The port transparency supports the address of the gateway and response server. The gateway is a

communication device that connects two different networks. The response server is a standard service

device that implements the ECHO protocol.

D. Trunk Agent

The trunk agent protocol is a firewall traversal technology developed by DBL Technology. It

enables the products of DBL Technology to be applicable for most LANs. It involves the address of

the trunk proxy server, port, user name and password.

The trunk agent protocol supports encryption on communications over the gateway. The H323

trunk agent protocol supports encryption on signaling in different modes (for details about the agent

mode, see section 3.5.6.3 “Media NAT Traversal”).

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DBL Technology HTM series Manual de usuario Pagina 50