Configuring Your System for ITSP Interoperability
Configuring NAT Mapping
Cisco Small Business WRP400 Administration Guide
24
2
•
Insert VIA received:
yes
•
Insert VIA rport:
yes
•
Substitute VIA Addr:
yes
•
Send Resp To Src Port:
yes
•
STUN Enable
: Choose
yes
.
•
STUN Server:
Enter the IP address for your STUN server.
Voice tab > SIP > NAT Support Parameters
STEP 4
Under the
Voice
menu, click
Line 1
or
Line 2
to choose the line interface that you
want to modify.
STEP 5
In the
NAT Settings
section, enter the following settings:
•
NAT Mapping Enable:
Choose
yes
.
•
NAT Keep Alive Enable:
Choose
yes
(optional).
Voice tab > Line N > NAT Settings
NOTE
Your ITSP may require the WRP400 to send NAT keep alive messages to
keep the NAT ports open permanently. Check with your ITSP to determine
the requirements.