Cisco Systems ASA 5580 Manual De Usuario

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Cisco ASA Series Firewall CLI Configuration Guide
 
Chapter 16      Configuring the Cisco Phone Proxy
  Troubleshooting the Phone Proxy
Configuring Your Router
Your firewall/router needs to be configured to forward a range of UDP ports to the IP phone. This will 
allow the IP phone to receive audio when you make/receive calls.
Note
Different Cable/DSL routers have different procedures for this configuration. Furthermore most 
NAT-capable routers will only allow a given port range to be forwarded to a single IP address
The configuration of each brand/model of firewall/router is different, but the task is the same. For 
specific instructions for your brand and model of router, please contact the manufacturer’s website. 
Linksys Routers
Step 1
From your web browser, connect to the router administrative web page. For Linksys, this is typically 
something like 
http://192.168.1.1
.
Step 2
Click Applications & Gaming or the Port Forwarding tab (whichever is present on your router).
Step 3
Locate the table containing the port forwarding data and add an entry containing the following values:
Step 4
Click Save Settings. Port forwarding is configured.
Troubleshooting the Phone Proxy
This section includes the following topics:
Debugging Information from the Security Appliance
This section describes how to use the debugcapture, and show commands to obtain debugging 
information for the phone proxy. See the command reference for detailed information about the syntax 
for these commands. 
 lists the debug commands to use with the phone proxy. 
Table 16-3
Port Forwarding Values to Add to Router
Application
Start
End
Protocol
IP Address
Enabled
IP phone
1024
65535
UDP
Phone IP address
Checked
TFTP
69
69
UDP
Phone IP address
Checked