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Cisco ASA Series CLI Configuration Guide
Chapter 1 Configuring the Cisco Phone Proxy
Troubleshooting the Phone Proxy
Table 1-5 Security Appliance Capture Commands to Use with the Phone Proxy
To Use the Command Notes
To capture packets on the ASA interfaces. capture capture_name interface
interface_name
Use this command if you are
experiencing any problems that might
require looking into the packets.
For example, if there is a TFTP failure
and the output from the debug command
does not indicate the problem clearly, run
the capture command on the interface on
which the IP phone resides and the
interface on which the TFTP server
resides to see the transaction and where
the problem could be.
To capture data from the TLS proxy when
there is a non-secure IP phone connecting
to the phone proxy on the inside interface.
capture capture_name packet-length
bytes interface inside buffer buf_size
To capture encrypted data from the TLS
proxy when there are secure IP phones
connecting to the phone proxy on the
inside interface.
capture capture_name type tls-proxy
buffer buf_size packet-length bytes
interface inside
To capture encrypted inbound and
outbound data from the TLS proxy on one
or more interfaces.
capture capture_name type tls-proxy
buffer buf_size packet-length bytes
interface interface_name
If signaling fails, you might require
capturing decrypted packets to see the
contents of the SIP and SCCP signaling
message. Use the type tls-proxy option
in the capture command.
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