Figure 2-20 Example - Nat Traversal; Table 2-40 Example - Required System Settings - NEC Univerge SV8100 Features And Specifications Manual

Issue 12.0
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.
With Version 6000 or higher software installed, the new NAPT feature is only effective when
Program15-05-45 is set "1" (On). Refer to
NAT Traversal network.
Required IP Terminal Settings on page 2-777
settings. Refer to Table 2-42 Example – SV8100 System Router A Port Forwarding Settings on page
2-777 for Port Forwarding setting examples.

Actual input data should be set according to the required system.
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Figure 2-20 Example – NAT Traversal
Table 2-40 Example – Required System Settings
Figure 2-20 Example – NAT Traversal
Table 2-40 Example – Required System Settings
Program Default
10-12-03 0.0.0.0
10-12-07 0.0.0.0
10-12-09 172.16.0.10
10-12-10 255.255.0.0
10-46-14 0:OFF
provide examples of required system and IP terminal
Input Data
172.16.0.254
10.1.1.1
172.16.0.10
255.255.0.0
1:ON
UNIVERGE SV8100
or an examples of the
and Table 2-41 Example –
Remark
LAN IP address of Router A
WAN IP address of Router A
LAN IP address of VOIPDB
Subnet Mask of VOIPDB
NAT Mode
IP Multiline Station (SIP)