Lucent Technologies 6000 - Manual (Page 393)

Configuring IP Routing
Configuring system-level routing policies
MAX 6000/3000 Network Configuration Guide 9-29
13 Optionally, open the Ethernet > NAT > NAT profile and set the Def Server parameter to
the IP address of a server, on the local network, that is to receive any remaining incoming
packets from the remote network (that is, any that are not for ports you have specified in
Static Mapping NN subprofiles).
14 Exit the profile and, at the exit prompt, select the exit and accept option.
The changes take effect the next time a connection specified in the NAT profile is established.
To activate the changes immediately, close the connection specified by the Profile parameter
and then reopen it.
Disabling routing for specific ports
To disable routing of incoming packets destined for specific TCP or UDP ports:
1 Open the Ethernet > NAT > NAT > Static Mappings profile.
2 Open a Static Mapping NN subprofile, where NN is a number from 1 to 10.
The parameters in each Static Mapping NN subprofile specify the routing for incoming
packets sent to a particular TCP or UDP port.
3 Set the Valid parameter to No.
This setting disables routing for the port specified by the Dst Port # and Protocol
parameters in this subprofile.
4 Exit and save the subprofile.
Repeat step 2 through step 4 to disable routing for any additional ports.
5 Exit the profile and, at the exit prompt, select the exit and accept option.
The changes take effect the next time the MAX makes a connection specified in the NAT
profile. To activate the changes immediately, close the connection specified by the Profile
parameter and then reopen it.
Support for QuickTime audio/video streaming
The network address translation (NAT) feature also accommodates QuickTime audio/video
streams, which are in RTP/RTSP protocol. You can assume the following:
• QuickTime clients are on the network behind NAT and the streaming servers are outside
the network.
• NAT is configured as single-IP NAT (NAPT).
• RTSP runs on TCP, and RTP runs on UDP.
Additional system-level services
You can configure additional services at the system level through the Ethernet > Mod Config
profile, including the system time, Telnet password, shared Connection profiles, suppression of
dial-out route advertisement in redundant configurations when a trunk fails, UDP checksums,
and suppression of host route advertisements.
Setting and maintaining system time
The MAX unit can use Simple Network Time Protocol (SNTP—RFC 1305) to set and
maintain its system time by communicating with an SNTP server. For the unit to use SNTP to