Security - Samsung OfficeServ 7200 General Description Manual

CHAPTER 4. OfficeServ 7200 Functions
CBQ/BoD (Bandwidth on Demand)
The queuing process is differentially performed according to the level table where
the routing process priority for a data server is defined.
RTP Priority
The RTP (Real-Time Transport Protocol) packet is a VoIP media packet. The queu-
ing process for the RTP packet is prior to that of other data packets, which helps to
maintain the tone quality. This function is useful when using the VoIP function in
the network where the VoIP packet that should be processed in real time and other
packets for general office work are mixed.
IP-ToS Process
This function checks the ToS (Type of Service) field of the IP header and processes
it according to priority of the corresponding routing in the data server. This function
reproduces the ToS field flowing into the data server, performs the routing process
first of all, and heightens the process priority in the next HOP.
3.3

Security

NAT/PT (In/Out/Exclusive/Redirect)
The security function supports the conversion function between the private IP ad-
dress and public IP address in the network where security is required. The Inbound,
Outbound, Exclusive, and Redirect functions are supported.
Inbound: This function performs the forwarding process for the packet flowing
from the WAN to the IP and port of the LAN specified in the NAT/PT conver-
sion table.
Outbound: This function converts the IP address of the transmitter into the
global IP address according to the NAT/PT conversion table for transmitting
the packet from the LAN to the WAN.
Exclusive: This function is used for the IP address that is not applied by the
NAT/PT conversion.
Redirect: When the DNS server IP in the data server management sector is
changed, each IP terminal uses the pre-DNS IP and this function changes the
DNS IP by registering the post-DNS IP into the Redirect table.
Firewall
Access filtering
This function prevents access to disallowed IP addresses to control the access
for the resource non-disclosed to the outside and to control the external re
source which the membership in the LAN may access.
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OfficeServ 7200 General Description Guide
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