Lucent Technologies 6000 - Manual (Page 391)

Configuring IP Routing
Configuring system-level routing policies
MAX 6000/3000 Network Configuration Guide 9-27
Reuse last addr=No
Reuse addr timeout=N/A
Configuring NAT port routing (Static Mapping subprofiles)
The Static Mappings profile includes 10 Static Mapping NN subprofiles, where NN is a value
from 1 to 10. Each of these subprofiles contains parameters for controlling the translation of
the private IP addresses to TCP or UDP port numbers when operating in single-address NAT
mode. You only need to specify static mappings for connections initiated by devices calling
into the private LAN. For sessions initiated by hosts on the private LAN, the MAX generates a
mapping dynamically if one does not already exist in the Static Mappings parameters.
Each Static Mapping NN subprofile contains the following parameters (shown with sample
settings):
NAT
50-C01 NAT...
Static Mappings...
Static Mapping 01
Valid=Yes
Dst Port #=21
Protocol=TCP
Loc Port #=21
Loc Adrs=181.100.100.102
You can configure a NAT port routing, on the local private LAN, to define a default server to
which the MAX routes incoming packets whose destination port number does not match a port
number dynamically assigned when a local host initiates a TCP/UDP session (and does not
match a Static Mapping entry). You can create Static Mapping entries to define a list of up to
10 servers and services on the local private LAN. The MAX routes incoming packets to hosts
on the local private LAN when their destination port matches one of the 10 destination ports in
Static Mappings.
You need to configure port routing only for sessions initiated by hosts outside the private LAN.
For sessions initiated by hosts on the private LAN, the MAX generates the port mapping
dynamically.
Note: For port routing in single-address NAT to work, if firewalls are present, they must be
configured to enable the MAX to receive packets for the routed ports.
Routing all incoming sessions to the default server
To configure the MAX to perform NAT and to define a single server that handles all sessions
initiated by callers from outside the private LAN:
1 Open the Ethernet > NAT > NAT profile.
2 Set the Routing parameter to Yes.
3 Set the Profile parameter to the name of an existing Connection profile.
The MAX performs NAT whenever a connection is made with this Connection profile.
The connection can be initiated either by the MAX or by the remote network.
4 Set the Lan parameter to Single IP Addr.