Tornado

Tornado 2.0
User’s Guide
etherfind
This command can be used on many UNIX systems to watch all traffic on a
network. You must have root access to execute etherfind. For example, to
monitor traffic between mars and phobos from a third machine, enter the
following:
# etherfind between mars phobos
Using interface le0
icmp type
lnth proto source destination src port dst port
60 tcp mars phobos 1022 login
60 tcp phobos mars login 1022
60 tcp mars phobos 1022 login
...
etherfind displays the packet length, the protocol (for example, TCP, UDP),
the source and destination machine names, and the source and destination
ports.
netstat
This command displays network status reports. The -r option displays the
network routing tables. This is useful when gateways are used to access the
target. In the following example, this node sends packets for 91.0.10.34
through gateway vx210:
% netstat -r
Routing tables
Destination Gateway Flags Refcnt Use Interface
91.0.10.34 vx210 UG 0 0 le0
Target-Server Problems
■
Check Back-End Serial Port.
If you use a WDB Serial connection to the target, make sure you have connected
the serial cable to a port on the target system that matches your target-agent
configuration. The agent uses serial channel 1 by default, which is different from
the channel used by VxWorks as a default console (channel 0). Your board’s ports
may be numbered starting at one; in that situation, VxWorks channel one
corresponds to the port labeled “serial 2.”
■
Verify Path to VxWorks Image.
The target server requires a host-resident image of the VxWorks run-time system.
By default, it obtains a path for this image from the target agent (as recorded in the
target boot parameters). In some cases (for example, if the target boots from a local
62