Airlink101 Host RJ-11 User Manual page 27

Configuration Settings and Commands
In one type of configuration, the Host RJ-11 IP Gateway has been designed to work in conjunction
with an AirLink Raven-E. The IP address for the Host RJ-11 IP Gateway and the IP address for the
Raven-E need to be on the same network. If you need to set a specific IP address for the Raven-E
and the Host RJ-11 IP Gateway, you will need to use Private Mode for the Raven-E. Setting Private
Mode is covered in the Raven-E User Guide.
FIGURE 9. Host RJ-11 IP Gateway: Network Interface Settings
Network Interface Settings
• IPV4 Ailili e$$ (Cut tent: 166.213.2souice: BOOTPDHCP)
* IPv4 Netmask (Cuirent: 255.255.255,0. Source: BOOTP.OHCP)
NOTE: You must reboot for (hose changes to take effect
[ Save IPAddrtss/Nelmosk ]
TCP Keep-Alive
. Seconds to Watt Befws Dropping D»ad TCP Cwracttons <01o ^saj
[ Save KfiefMlivs ]
TCP keep-alive is a standard feature of TCP/IP that can be configured to automatically monitor the
state of TCP connections. If one end of an idle TCP connection is severed (like by a network or
while it has an open TCP connection to one of the device server's serial ports, that serial port might
remain unavailable until it is manually reset.
The optional TCP keep-alive feature sends special "keep-alive" packets to the remote TCP host in
order to detect the situation where the remote host fails. If a failure is detected, the TCP connection
t
Caution: Enabling TCP keep-alives will increase the amount of network traffic on
your network. Unless you have a specific need for this feature, it is best to leave it
disabled. If you do enable it, it is best to make the keep-alive time-out larger to