3Com WL-603, User Manual

Page: 99 / 182

Firewall 97
address is not known, or if more than one PC on the Internet will need to
access the DMZ PC, then set the
Public IP Address to 0.0.0.0 .
In the default setting, (line 1) refer to Figure 73 , Public IP address is set to
0.0.0.0 and it is automatically transformed by default WAN IP. We only
allow one DMZ server to be accessed by public IPs (Many to 1 NAT). If you
have more than one DMZ server, you have to set a second WAN IP in line
2 and define which IP address of DMZ server you would like to set in the
Client PC IP address . For this Router, only 1 to 1 NAT function is allowed.
2 Click Apply .
PC Privileges The Router can be configured to restrict access to the Internet, email or
other network services at specific days and times. Restriction can be set
for a single computer, a range of computers, or multiple computers.
You can define the traffic type permitted or not-permitted to the Internet.
Note that this function requires time-scheduling to be applied to access
control, you will need to create schedule rules first and then use PC
Privileges.
Figure 74 PC Privileges Screen
1 Select one option from filtering function:
■
All PCs have access to the Internet: selecting this mode means that all
clients have full access to Internet.
■
PCs access authorised services only: selecting this mode means clients
can only access authorised or limited services.
2 Click Add PC (refer to Figure 75 ).