Diagnostics Analyze network traffic
IX20 User Guide
1107
Example IPv4 capture filters
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Capture traffic to and from IPhost 192.168.1.1:
ip host 192.168.1.1
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Capture traffic from IPhost 192.168.1.1:
ip src host 192.168.1.1
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Capture traffic to IPhost 192.168.1.1:
ip dst host 192.168.1.1
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Capture traffic for a particular IPprotocol:
ip proto protocol
where protocol is a number in the range of 1 to 255 or one of the following keywords: icmp,
icmp6, igmp, pim, ah, esp, vrrp, udp, or tcp.
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Capture traffic to and from a TCPport 80:
ip proto tcp and port 80
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Capture traffic to UDPport 53:
ip proto udp and dst port 53
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Capture traffic from UDPport 53:
ip proto udp and src port 53
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Capture to and from IPhost 10.0.0.1 but filter out ports 22 and 80:
ip host 10.0.0.1 and not (port 22 or port 80)
Example Ethernet capture filters
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Capture Ethernet packets to and from ahost with a MACaddressof 00:40:D0:13:35:36:
ether host 00:40:D0:13:35:36
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Capture Ethernet packets from host 00:40:D0:13:35:36:
ether src 00:40:D0:13:35:36:
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Capture Ethernet packets to host 00:40:D0:13:35:36:
ether dst 00:40:D0:13:35:36
Capture packets from the command line
You can start packet capture at the command line with the analyzer start command. Alternatively, you
can schedule the network analyzer to run based on aspecified event or at a particular time. See
Configure packet capture for the network analyzer for information about scheduling packet capturing.
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