Microsemi SyncServer S200, User Manual

Page: 33 / 190

NETWORK Tab
NETWORK-Ping
Network Ping Test
Use this page to PING a network node from one of the SyncServer's network ports. This fea-
ture can be used to test and troubleshoot network connectivity issues. The network ping test
is supported on LAN1, LAN2, and LAN3.
To use PING:
1. Select the network port from which to send the PING packets. See "Ping 6 Command"
on page 33
2. For IPv6 networks, select Ping 6 .
3. Enter the
IP address of the host and click the APPLY button. Ping Output displays the results
five seconds after clicking apply.
Note: The approximate command line equivalent is "ping -c 5 -w 5", where "-c 5" means
"send five request packets to the requested destination" and "-w 5" means "timeout after 5
seconds if no responses". The network port that sends the ping request also receives the
responses.
Ping 6 Command
The SyncServer software executes the following command when pinging an IPv6 address.
ping6 -c 5 -w 5 -I <eth dev> ipv6address
-c 5 sends 5 ping requests.
-w 5 times out after 5 seconds regardless of the target is reachable or not.
ipv6address is the target address (Customer inputs this address in the SyncServer entry
box)
-I <eth dev> specifies the interface which corresponds to the drop down choice:
LAN1 – “-I eth0”
LAN2 – “-I eth1”
LAN3 – “-I eth2”
LANG – “-I eth3”
The drop down choice of the interface, suggests that it corresponds to where the ping6
packet will be sent out from. This is not entirely correct.
For example, the “-I eth0” only means to set the source IP address in the ping packet to that
of the eth0, it does not specify which interface it actually will always use to send out the pack-
ets.
The interface the ping6 uses to send out the packets is entirely determined by the Linux
kernel routing table.
If the target Ipv6address is a link-local IPv6 address, the -I <eth dev> must also be a linklocal
address as specified in the way that SyncServer port was configured.
For example:
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