Samsung OfficeServ 7200 General Description Manual page 75

OfficeServ 7200 General Description Guide
DMZ function
This function is used for connecting the web server and mail server (which are
firewall-protected LAN networks but need to be freely accessed from the out-
side) to the subnet separated from the LAN network where firewall blocking is
not applied. In this way, access from the outside can be smoother with the ac-
cess control service through the firewall.
Port Forwarding
This function is almost the same as the DMZ function but is used for connect-
ing to a specific network without a separately divided DMZ port. This function
is used for the extra network services as well as the DMZ function. The extra
network is configured for a party outside of the office to access the Intranet in
the office via the Internet. In this network, security on the Intranet is para-
mount.
Intrusion Detection System (IDS)
This function monitors the packets on the network and detects those which can
damage network operation, thus making the network more stable. The IDS is di-
vided into various types from a detection type, where a specific-type attack is detected,
to the abnormal traffic detecting type, which is based on the Snort Rule
(www.snort.org) defining the intrusion pattern and types. The detected packets are
sorted and processed into close connection/port or service disable/Alarm/log based
on the intrusion pattern and the level. In the case of an alarm, the system will imme-
diately notify the system administrator.
Virtual Private Network (VPN)
VPN function
The system provides the virtual private network function using the Internet
open network. T he VPN gateway function is based on the IPSec (IP Security),
which is used to build the enterprise network with reduced cost and enforced
security.
VPN Transparent Mode
The data server operates as a VPN client and establishes a VPN channel to re-
mote VPN equipment for data transmission. This mode provides the interface
between each OfficeServ 7200 based on the IPSec and the 3DES and RSA cod-
ing functions.
VPN Tunnel Mode
VPN functions are processed by establishing a tunnel through the VPN gate
ways between the OfficeServ 7200 data servers. Up to 100 VPN channels are
available for one VPN.
© Samsung Business Communications
CHAPTER 4. OfficeServ 7200 Functions
Page 4-9