Lantronix ETS Reference Manual - 4.5.3 Local Host Table
TCP/IP Server Parameters
Server Configuration
4-6
You can also configure a backup host in case the primary one fails.
Figure 4-12: Configuring Backup Hosts
4.5.3 Local Host Table
If your environment uses a few TCP/IP hosts regularly, you may wish to add hosts to the local host table so
that nameserving text names is not necessary (and numeric addresses do not have to be used). The Set/
Define Telnet Hosts command adds entries to the local host table.
Figure 4-13: Define Telnet Hosts Command
TCP/IP host names are case-independent, whether used with the host table or with a nameserving host.Users
who Telnet or Rlogin to host beeny will be connected to address 192.0.1.23 without needing network
nameserving support.
In addition to the Local Host table, the ETS has a TCP/IP security table that can be used to restrict incoming
or outgoing TCP/IP connections. Managers can restrict connections by address or network on a port by port
basis. See IP Security Table on page 4-16 for more information on using the security table.
4.5.4 Host Limit
The Set/Define Server Host Limit command is used to set the number of remote TCP/IP hosts for which
the ETS will store information. In large network environments, this will keep ETS network overhead down.
The host limit applies only to hosts that were not explicitly set in the host table (for example, hosts seen
using rwho).
Figure 4-14: Setting a Host Limit
4.5.5 SLIP
SLIP allows hosts to establish TCP/IP connections over serial lines to the ETS, and then onto the network
attached to the ETS. The ETS will route packets among the serial and Ethernet lines transparently to the
user. This allows hosts to dial in via modems and run TCP/IP sessions directly to the net without having to
go through the ETS command line. SLIP sessions can be configured to Autostart, or can be manually started
with the Set/Define SLIP command.
Although SLIP configuration involves setting specific port characteristics, it is covered in this chapter
instead of the Ports chapter due to its complexity. Configuring a serial line for SLIP access involves two
steps: the manager must enable SLIP access on the port (see the Set/Define Port SLIP command) and a
user must explicitly start a SLIP session after logging into the serial port (see Set/Define SLIP).
There are a few things to note about SLIP access:
Local> DEFINE SERVER SECONDARY NAMESERVER 192.0.1.193
Local> DEFINE SERVER SECONDARY GATEWAY 192.0.1.195
Local> DEFINE TELNET HOST beeny 192.0.1.23
Local> DEFINE SERVER HOST LIMIT NONE