R E V I E W D R A F T # 1 — C I S C O C O N F I D E N T I A L
2-3
Cisco WRP500 Administration Guide
Chapter 2 Configure Your System for ITSP Interoperability
Configure NAT Mapping
Step 1
Log in as administrator.
Step 2
Under the
Voice
menu, click
SIP
.
Step 3
In the
NAT Support Parameters
section, enter the following settings:
•
Handle VIA received:
yes
•
Handle VIA rport:
yes
•
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 WRP500 to send NAT keep alive messages to keep the NAT ports
open permanently. Check with your ITSP to determine the requirements.
Step 6
Click
Save Settings
.
Note
You also need to configure the firewall settings on your router to allow SIP traffic. See
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