3Com 3CRWE554G72 User Guide - Page 63

Firewall, Virtual Servers

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Firewall 63 5 Enter your Primary DNS Address and Secondary DNS address. Your ISP may provide you with primary and secondary DNS addresses. If they have been provided, enter the addresses in the appropriate text boxes. If not, leave 0.0.0.0 in the boxes. 6 Select an idle time from the Maximum Idle Time drop-down list. This value will correspond to the amount of idle time (no Internet activity) that will pass before the Gateway automatically ends your PPTP session. 7 IP settings must be used when establishing a PPTP connection. Fill in the Initial IP Address and the Initial Subnet Mask fields if your ISP has provided you with these settings. Alternatively, if the PPTP server is located in your DSL modem, click Suggest to select an IP address on the same subnet as the PPTP server. Firewall On the main frame of the Firewall setup screen is a menu with five tabs: Virtual Servers, Special Applications, PCs Privileges, URL Filter, and Security. Virtual Servers Selecting the Firewall option on the main menu displays the Virtual Servers setup screen. (Figure 45) Virtual DMZ Figure 45 Virtual Servers Screen

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Firewall
63
5
Enter your
Primary DNS Address
and
Secondary DNS address
.
Your ISP may provide you with primary and secondary DNS addresses. If
they have been provided, enter the addresses in the appropriate text
boxes. If not, leave
0.0.0.0
in the boxes.
6
Select an idle time from the
Maximum Idle Time
drop-down list.
This value will correspond to the amount of idle time (no Internet activity)
that will pass before the Gateway automatically ends your PPTP session.
7
IP settings must be used when establishing a PPTP connection. Fill in the
Initial IP Address
and the
Initial Subnet Mask
fields if your ISP has
provided you with these settings. Alternatively, if the PPTP server is
located in your DSL modem, click
Suggest
to select an IP address on the
same subnet as the PPTP server.
Firewall
On the main frame of the
Firewall
setup screen is a menu with five tabs:
Virtual Servers, Special Applications, PCs Privileges, URL Filter, and
Security.
Virtual Servers
Selecting the
Firewall
option on the main menu displays the Virtual
Servers setup screen. (
Figure 45
)
Virtual DMZ
Figure 45
Virtual Servers Screen