Administering TCP/IP Networks, IPMP, and IP Tunnels in Oracle^® Solaris 11.3

How to Check Packets From an IPMP Group

In Oracle Solaris 10, if you want to capture packets from an IPMP group, you need to manually run the snoop command on each of the interfaces of the IPMP group. In the Oracle Solaris 11 release, you can capture packets from all of the interfaces in an IPMP group by using the snoop command with the –I option. The output is then consolidated into a single output stream.

The snoop command normally uses the first non-loopback device, which is typically the primary network interface. However, when the –I option is used, the snoop command uses IP interfaces (from /dev/ipnet/*), as displayed by the ipadm show-if command. You can also use this option to enable the snooping of loopback traffic and other IP-only constructs. The –d option uses datalink interfaces, those that are displayed in the output of the dladm show-link command.

1. Print information about the interfaces that are attached to the system.

   # ipadm show-if

2. Begin packet capture for the specified IPMP group.

   # snoop -I ipmp-group

3. Press Control-C to halt the process.