Napt; Masquerading - NetModule NB3000-Line-Hd User Manual

5.5.4. NAPT

This page can be used to con gure Network Address and Port Translation (NAPT) for packets
traversing the system. NAPT hereby modi es IP addresses or/and TCP/UDP ports in match-
ing IP packets. By tracking those connections, it will also automatically adjust the returning
packets of an IP session.
The administration page lets you specify the interfaces on which masquerading will be per-
formed. NAT will hereby use the address of the selected interface and choose a random
source port for outgoing connections and thus enables communication between hosts from
a private local area network towards hosts on the public network.
Parameter
Interface
Source address
Source netmask
NB3000-Line-Hd User Manual 4.2
Figure 5.26.: Masquerading
Masqerading Rules
The outgoing interface on which connections will be masquer-
aded
The source address or network from which matching packets
are masqueraded
The source netmask of the network from which matching pack-
ets are masqueraded
94