Arris 3387W Manual Do Utilizador

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Cayman Gateways provide special pinhole configuration rules that enable 
users to establish NAT-protected LAN layouts that still provide flexible by-
pass capabilities.

Some of these rules require coordination with the unit’s embedded admin-
istration ser vices: the internal Web (HTTP) Por t (TCP 80) and the internal 
Telnet Ser ver Por t (TCP 23). 

The internal ser vers are the embedded Web and Telnet 

ser vers of the Gateway. You would change the internal ser ver por ts for Web 
and Telnet of the Gateway if you wanted to have these ser vices on the LAN 
using pinholes or the Default ser ver. Pinhole configuration rules provide an 
internal por t for warding facility that enables you to eliminate conflicts with 
embedded administrative por ts 80 and 23.

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 

 for How To instructions.

FTP (TCP 21)

telnet (TCP 23)

SMTP (TCP 25)

HTTP (TCP 80)

SNMP (TCP 161, UDP 161)