User`s guide

IP Address Management
Network Address Translation (NAT) for a LAN
Pipeline User’s Guide Preliminary January 30, 1998 3-31
7
Set the Valid parameter to Yes.
This enables the port routing specified by the remaining parameters in the
menu. Setting this parameter to No disables routing for the specified port.
8
Set the Dst Port # parameter to the number of a TCP or UDP port which
users outside the private network can access. Each Dst Port # corresponds to
a service provided by a server on the local private network. You can use the
actual port number as given by the Loc Port # parameter as long as that
address is unique for the local private network. See “Well-known ports” on
page 3-32 for information on obtaining port numbers.
The Pipeline routes incoming packets it receives from the remote network
for this port to the local server and port you’re about to specify.
9
Set the Protocol parameter to TCP or UDP.
This parameter determines whether the Dst Port # and Loc Port # parameters
specify TCP ports or UDP ports.
10
Set the Loc Port # to a port corresponding to a service provided by the local
servers.
11
Set the Loc Adrs parameter to the address of the local server providing the
service specified by Loc Port #.
12
Exit and save the profile.
Repeat steps 6 through 12 for any additional ports whose packets you want
to route to a specific server and port on the local network.
13
Open the Ethernet > NAT > NAT menu.
14
Set the Def Server parameter to the IP address of a server on the local
network that receives any remaining incoming packets from the remote
network, that is, any that aren’t for ports you’ve specified in Static Mapping
nn menus.
15
Exit and save the profile.
The changes take effect the next time a connection is made for the NAT Profile.
To make the changes immediately, close the connection specified by the Profile
parameter and then reopen it.