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This module match RTP packets. RTP packets are most of the time encapsulated in UDP datagrams. Because of this, it's impossible to determine that a UDP datagram contains a RTP packet. You have to tell packet-o-matic that a packet contains RTP packet or it won't be able to find it out. This is done simply by creating a rule that containes the RTP layer. For example, the following rule assume that all UDP datagrams from are RTP packets :

ethernet | ipv4.src == | udp | rtp

This module has the following fields :

Field name Field type Description
payload_type uint8 Payload type, see RTP parameter number assignement for a list of value
ssrc uint32 Syncronization source
seq uint16 Sequence number
ts uint32 Timestamp of the packet
pom/match/rtp.txt · Last modified: 2012/10/12 08:57 (external edit)