Motorola Netopia 7000, Руководство администратора

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Administrator’s Handbook
356
Pinholes
This feature allows you to:
• Transparently route selected types of network traffic using the por t for warding facility.
FTP requests or HTTP (Web) connections are directed to a specific host on your LAN.
• Setup multiple pinhole paths.
Up to 32 paths are suppor ted
• Identify the type(s) of traffic you want to redirect by por t number.
Common TCP/IP protocols and por ts are:
See page 82 for How To instructions.
Default Server
This feature allows you to:
• Direct your Gateway to for ward all externally initiated IP traffic (TCP and UDP protocols only) to a default
host on the LAN.
• Enable it for cer tain situations:
Where you cannot anticipate what por t number or packet protocol an in-bound application might use.
For example, some network games select arbitrar y por t numbers when a connection is opened.
When you want all unsolicited traffic to go to a specific LAN host.
Combination NAT Bypass Configuration
Specific pinholes and Default Ser ver settings, each directed to different LAN devices, can be used together.
☛
WARNING:
Creating a pinhole or enabling a Default Ser ver allows inbound access to the specified LAN sta-
tion. Contact your Network Administrator for LAN security questions.
IP-Passthrough
Motorola Netopia® OS now offers an IP passthrough feature. The IP passthrough feature allows a single PC
on the LAN to have the Gateway’s public address assigned to it. It also provides PAT (NAPT) via the same
public IP address for all other hosts on the private LAN subnet.
FTP (TCP 21) telnet (TCP 23)
SMTP (TCP 25) HTTP (TCP 80)
SNMP (TCP 161, UDP 161)