NETGEAR SRXN3205 - ProSafe Wireless-N VPN Firewall Wireless Router Reference Manual page 79

• If your external IP address is assigned dynamically by your ISP (DHCP enabled), the IP
address may change periodically as the DHCP lease expires. Consider using Dyamic DNS
(under Network Configuration) so that external users can always find your network (see
"Configuring Dynamic DNS" on page
• If the IP address of the local server PC is assigned by DHCP, it may change when the PC is
rebooted. To avoid this, use the Reserved IP address feature in the LAN Groups menu (under
Network Configuration) to keep the PC's IP address constant (see
Address Reservation" on page
• Local PCs must access the local server using the server's local LAN address. Attempts by
local PCs to access the server using the external WAN IP address will fail.
Note: See
certain types of inbound traffic that would otherwise be blocked by the
firewall.
Table 5-2. Inbound Rules
Item Description
Service Select the desired Service or application to be covered by this rule. If the desired
service or application does not appear in the list, you must define it using the
Services menu (see
Action (Filter) Select the desired action for packets covered by this rule:
• BLOCK always
• BLOCK by schedule, otherwise Allow
• ALLOW always
• ALLOW by schedule, otherwise Block
Note: Any inbound traffic which is not allowed by rules you create will be blocked by
the Default rule.
Schedule Select the desired time schedule (Schedule1, Schedule2, or Schedule3) that will be
used by this rule (see
• This drop down menu gets activated only when "BLOCK by schedule, otherwise
• Use schedule page to configure the time schedules.
Send to LAN Server This LAN address determines which computer on your network is hosting this service
rule. (You can also translate this address to a port number.)
Translate to Port Check the "Translate to Port Number" and enter a port number if you want to assign
Number the LAN Server to a different service port number. Inbound traffic to the service port
will have the destination port number modified to the port number configured here.
Firewall Security and Content Filtering
ProSafe Wireless-N VPN Firewall SRXN3205 Reference Manual
2-11.
3-4.
"Enabling Port Triggering" on page 5-23
"Adding Customized Services" on page
"Setting Schedules to Block or Allow Traffic" on page
Allow" or "ALLOW by schedule, otherwise Block" is selected as Action.
v1.0, October 2008
"Configuring DHCP
for yet another way to allow
5-15).
5-17).
5-5