Chapter 9: Using tcpdump
148
IP700 Series Installation Guide
tcpdump Command Basics
To Specify an Interface
tcpdump -i
interface
The following command returns information for slot 1 and port 1 on an
IP700 Series appliance:
tcpdump -i eth-s1p1c0
To Specify an Interface Running a Specified Protocol
tcpdump -i
interface
proto
protocol
The following command returns OSPF traffic:
tcpdump -i eth-s2p3c0 proto ospf
The following command returns IGRP traffic:
tcpdump -i eth-s2p1c0 proto igrp
To View Packets Running the IGMP Protocol
tcpdump -1
interface
proto
igmp
The following command returns packets passing through the specified
interface:
tcpdump -1 eth-s2p3c0 proto igmp
To Specify an Interface Using a TCP/UDP Application Port
tcpdump -i
interface
port
TCP/UDP-application-port
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