NetModule NB3711, User Manual

Page: 88 / 214

NB3711 User Manual 4.0
Parameter Masqerading Rules
Source netmask The source netmask of the network from which matching
packets are masqueraded
NAPT Inbound Rules
Inbound rules can be used to modify the target section of IP packets and, for instance,
forward a service or port to an internal host. By doing so, you can expose that service
and make it available from the Internet. You may also establish 1:1 NAT mapping for
a single host using additional outbound rules.
Please note that the specified rules are processed by order, that means, traversing the
list from top to bottom until a matching rule is found. If there is no matching rule
found, the packet will pass as is.
Parameter Inbound NAPT Rules
Description A meaningful description of this rule
Incoming interface The interface from which matching packets are received
Source The source address or network from which matching packets
are received
Target address The destination address of matching packets (optional)
Protocol The used protocol of matching packets
Ports The used UDP/TCP port of matching packets
Redirect to The address to which matching packets shall be redirected
Redirect port The port to which matching packets will be redirected
NAPT Outbound Rules
Outbound rules will modify the source section of IP packets and can be used to establish
1:1 NAT mappings but also to redirect packets to a specific service.
Parameter Outbound NAPT Rules
Description A meaningful description of this rule
Outgoing interface The outgoing interface on which matching packets are leav-
ing the router
Target The target address or network to which matching packets
are destined
88