Raritan Computer CC-SG - Manual (Page 210)

196 C OMMAND C ENTER S ECURE G ATEWAY A DMINISTRATOR G UIDE
10. System progress can be monitored in a Diagnostic Console Status Screen. On the KVM port,
another terminal session can be selected by typing <ALT>+<F2> and logging in as status.
You may return to the original terminal session by typing <ALT>+<F1>. There are six
available terminal sessions on <F1> thorough <F6>. For SSH access, launching another SSH
session from the client and logging in as status should work as long as the network re-
configuration permits connectivity.
Ping an IP Address (Network Interfaces)
Use ping to check that the connection between CC-SG computer and a particular IP address is
working correctly.
Note: Some sites explicitly block ping requests. Verify that the target and intervening network
allow pings before assuming that there is a problem.
1. Click Operation, Network Interfaces, and then click Ping.
2. Enter the IP address or hostname (if DNS is appropriately configured on the CC-SG) of the
target you want to check in the Ping Target field.
3. Optionally, select:
OPTION DESCRIPTION
Show other received ICMP
packets Verbose output, which lists other received ICMP packets in
addition to ECHO_RESPONSE packets. Rarely seen.
No DNS Resolution Does not resolve addresses to host names.
Record Route Records route.
Sets the IP record route option, which will
store the route of the packet inside the IP header.
Use Broadcast Address Allows pinging a broadcast message.
Adaptive Timing Adaptive ping. Interpacket interval adapts to round-trip
time, so that effectively not more than one unanswered
probes present in the network. Minimal interval is 200 msec.
4. Optionally, type values for how many seconds the ping command will execute, how many
ping requests are sent, and the size for the ping packets (default is 56, which translates into 64
ICMP data bytes when combined with 8 bytes of ICMP header data). If left blank, defaults
will be used.
5. Click Ping in the bottom right-hand corner of the window. If the results show a series of
replies, the connection is working. The time shows you how fast the connection is. If you see
a "timed out" error instead of a reply, there is a breakdown somewhere between your
computer and the domain. In this case, the next step is to perform a traceroute – see the next
section.
6. Press CTRL+C to terminate the ping session. The system prompts with a “Return?” before
returning to the Diagnostic Console (so that any output can be viewed and analyzes ass
appropriate).
Note: Pressing CTRL+Q displays a statistics summary for the session so far and continues to
ping the destination.
Using Traceroute (Network Interfaces)
Traceroute is often used for network troubleshooting. By showing a list of routers traversed, it
allows you to identify the path taken from your computer to reach a particular destination on the
network. It will list all the routers it passes through until it reaches its destination, or fails to and
is discarded. In addition to this, it will tell you how long each 'hop' from router to router takes.
This can help identify routing problems or firewalls that may be blocking access to a site.
To perform a traceroute on an IP address or hostname:
1. Click Operation, Network Interfaces, then Traceroute.