Lantronix MSS1-T, Reference Manual

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IP Address Configuration Getting Started
3 - 2
3.1.2 Using an ARP Entry and the Ping Command
If the MSS has no IP address, it will set its address from the first directed IP packet it receives. To
generate such a packet, create an entry in the host’s ARP table, then substitute the intended IP
address and the hardware address of the server and ping the server (see Figure 3-1). This process
typically requires superuser privileges on the host.
Figure 3-1: Entering ARP and Ping
NOTE: The ARP/ping method only works during the first two minutes of MSS operation.
After two minutes, an alternate method must be used or the MSS must be rebooted.
NOTE: The ARP/ping method is also available under Windows NT. Refer to your Windows
NT documentation or the Lantronix FAQs available from http://www.lantronix.com
for information about the ARP tables.
When the server receives the ping packet, it will notice that its IP address is not set and will send
out broadcasts to see if another node is using the specified address. If no duplicate is found, the
server will use the IP address and will respond to the ping packet.
The MSS will not save the learned IP address permanently; this procedure is intended as a
temporary measure to enable EZWebCon to communicate with the server, or allow an
administrator to Telnet into the MSS. Once logged in, the administrator can enter the Change
IPaddress
command to make the address permanent.
Figure 3-2: Changing the IP Address
The login password must be entered at the “#” prompt before the connection can be made. The
default login password is access. To change this password, see Login Password on page 4-2.
Any host wishing to access the MSS will have to be told the MSS’s IP address. This is typically
configured in the unix file /etc/hosts or via a nameserver. Refer to the host’s documentation for
additional information.
# arp -s 192.0.1.228 00:80:a3:xx:xx:xx
% ping 192.0.1.228
% telnet 192.0.1.228
Trying 192.0.1.228
Connected to 192.0.1.228
Escape character is ‘^]’
# access (not echoed)
Lantronix Version n.n/n (yymmdd)
Type Help at the ‘Local_>’ prompt for assistance.
Enter Username> gopher
Local>> CHANGE IPADDRESS 192.0.1.228