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Multiple NAT State
Select index to set
LAN
WAN
DMZ
NAT ALGs
NAT ALGs, or Application Layer Gateway is a function that helps applications running behind NAT to function
correctly, and quickly without great involvement from the user. Certain protocols, such as IPsec and PPTP, have
difficulty operating in conjunction with NAT. With NAT ALGs enabled, the router can forward those packets
without subjecting them to NAT address mapping. Checking the corresponding boxes next to the protocols listed
below will allow applications using these protocols to function correctly and quickly within the assigned LAN
by allowing those packets to pass, by default. Unchecking the corresponding box will block the packet type from
routing Protocols supported by this application are H.323, IPsec, PPTP, ICQ and SIP. H323, IPsec, PPTP and
ICQ are checked, by default. Click OK to set checked protocols.
DSL-1500G SHDSL Ethernet Router User's Guide
Default = disabled. Select enabled if you wish to configure multiple NATs.
Select disabled if there is only one designated IP address assigned to you
by you ISP. Click Apply to change the state and save the changes to the
router's memory. The system must be rebooted for these changes to take
affect.
Default = not selected. Upon initial configuration, this field will have no
entries because they need to be set by the user. After setting an index (item
name) you may click on the buttons adjacent to this field to modify or delete
an index. The Clear button will clear all of the settings in the fields directly
below.
Specify the IP address of the router used for allocation of IP
Start IP
addresses to computers on you Local Area Network.
Specify a range of numbers between 2 and 254 that you
would like the router to automatically allot to the computers
Range
on your network. This range will represent the ending
numbers of the Start IP address. (x, where x is 192.168.0.x)
Start IP
Specify the IP address given to you by your ISP.
Specify a range of numbers between 2 and 254 which denote
Range
the range of IP addresses given to you by your ISP.
Default = disabled. Select enabled or disabled to enable or disable the DMZ
function within the specified Nat index.
NAT ALGs Configuration Menu
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