Software IP interface configuration task list
124
IPLink Software Configuration Guide
11 • IP interface configuration
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Context: router
Name: wan
IP Address: 172.17.100.210 255.255.255.0
MTU: 1500
ICMP router-discovery: enabled
ICMP redirect: send only
State: CLOSED
Binding: ethernet 0 0 1/ethernet/ip
…
Displaying dynamic ARP entries
The following command can be used to display the dynamically learned ARP entries on an IP interface or on
the entire system.
Flushing dynamic ARP entries
The following command can be used to flush the dynamically learned ARP entries on an IP interface or on the
entire system.
Testing connections with the ping command
As an aid to diagnosing basic network connectivity, many network protocols support an echo protocol. The
protocol involves sending a special datagram to the destination host, then waiting for a reply datagram from
that host. Results from this echo protocol can help in evaluating the path-to-host reliability, delays over the
path, and whether the host can be accessed or is functioning.
Mode: Either operator or administrator execution
When using
ping
for fault isolation, you should first run it on the respective IPLink interface to verify that the
local LAN or WAN interface is up and running. Then, you should “ping” hosts and gateways further away.
Round-trip times and packet loss statistics are computed. If duplicate packets are received, they are not
included in the packet loss calculation, although the round trip time of these packets is used to calculate the
minimum/average/maximum round-trip time numbers. When five ICMP echo requests packets have been
sent and received, a brief summary is displayed.
Example:
Testing connections with the
ping
command
Step
Command
Purpose
1
[
name
]#show arp
[<ip-if-name>]
Display the ARP entries for the specified or all IP interfaces.
Step
Command
Purpose
1
[
name
]#arp flush
[<ip-if-name>]
Flushes the ARP entries for the specified or all IP interfaces.
Step
Command
Purpose
1
node>ping
ip-address
Sends ICMP ECHO_REQUEST packets to network hosts at IP address
ip-
address