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Troubleshooting
247
Parameter Description Configuration Method
SIP, H245 and H225 packets.

RTP
—Capture RTP packets.
Default:
Custom
Packet Filter
String
Customizes the packet filter string.
Syntax:
PDiHost(s)+ Value
+Logical OpeOther Expression
Protocol
:
Values: ether, fddi, ip, arp, rarp, decnet,
lat, sca, moprc, mopdl, tcp and udp.
Application-level protocol, such as
http, dns and sip are not supported.
If no protocol is specified, all the
protocols are used.
Direction
:
Values: src, dst, src and dst, src or dst
If no source or destination is specified,
the "src or dst" keywords are applied.
For example: "host 10.2.2.2" is
equivalent to "src or dst host 10.2.2.2".
Host(s)
:
Values: net, port, host, portrange.
If no host(s) is specified, the "host"
keyword is used.
For example: "src 10.1.1.1" is equivalent
to "src host 10.1.1.1".
Logical Operations
:
Values: not, and, or.
Negation ("not") has highest
precedence. Alternation ("or") and
concatenation ("and") have equal
precedence and associate left to right.
For example:
"not tcp port 3128 and tcp port 23" is
equivalent to "(not tcp port 3128) and
tcp port 23".
"not tcp port 3128 and tcp port 23" is
NOT equivalent to "not (tcp port 3128
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