Napt Traversal - NEC Univerge SV8100 Features And Specifications Manual

Hide thumbs Also See for Univerge SV8100:

Table of Contents

UNIVERGE SV8100

System Availability

All IP Multiline Terminals

Required Software

Required Component(s)

CPU with PZ-32IPLA/IPLB, PZ-64IPLA/IPLB or PZ-128IPLA/IPLB Daughter Board installed

NAPT Traversal

NAPT (Network Address Port Translation), is a method by which a private address or addresses and

their TCP/UDP ports are translated into a single public address and its TCP/UDP ports. The NAPT

feature gives the SV8100 the ability to "traverse" its own subnet. With NAPT, the network administrator

can place the CD-CP00-US and the IPLA/IPLB (VoIPDB) in the customers LAN while still making it

accessible to users outside the local LAN. The NAPT Feature also allows the IP terminals to be placed

in a local LAN in a remote network and be able to communicate back to the SV8100.

With Version 3000 ~ Version 5000 software, Port forwarding statements are required in the router that

the SV8100 resides behind as well as the router that the IP terminal/terminals resides behind. A

PZ-( )IPLA or PZ-( )IPLB can be used for NAPT transversal. Refer to the SV8100 Networking Manual

for detailed installation instructions on this feature.

With Version 6000 or higher software, improvements have been made to the NAPT feature. The router

that the SV8100 resides behind still requires Port Forwarding statements. However the router that the IP

terminal/terminals reside behind may not require any port forwarding. This feature is only available

when using a PZ-( )IPLB (IPLA does not support this feature). Due to the fact that there are many

manufacturers producing routers there may still be times when port forwarding is required. Refer to the

SV8100 Networking Manual for detailed installation instructions on this feature.

In all software versions, SIP ALG's (Application Level Gateway) or other SIP Applications MUST be disabled in all

routers. If a SIP ALG or a similar SIP application is enabled, IP phone service WILL be interrupted.

IP Multiline Station (SIP)

Table of Contents