Lantronix SCS1620 Guide de l'utilisateur télécharger pdf (Page 109)

SCSxx05/SCSxx20 User Guide 9: Port Access

9-5

IP Address per Serial Port Feature

The IP Address per Serial Port feature allows you to set multiple network

addresses on the same low-level network device driver (e.g., two IP addresses in

one Ethernet card). It is typically used for services that act differently based on

the address they listen on (e.g., multihosting, virtual domains, or virtual hosting

services).

Setting up an IP Address per serial port is only slightly more involved than setting

up the IP port number per serial port. It involves editing /lci/lwip_serial.conf

and creating a five-line config file per distinct IP address. You do not have to

change /etc/inetd.conf.

Setting the IP Addresses

The first file to edit is /lci/lwip_serial.conf. In this file we specify the IP

addresses for the corresponding serial ports. In the example below we chose the

IP addresses 192.168.202.11 through 192.168.202.26. These correspond to

serial ports 1 through 16 respectively. The IP addresses do not need to be in

consecutive order. Obtain or choose IP addresses that are appropriate for your

site.

1. Log in to the sysadmin account and then go into the bash shell.

sysadmin>bash

sysadmin@km3210 /var/tmp$ su

Password:

root@km3210 /var/tmp# cd /lci

root@km3210 /lci# vi lwip_serial.conf

2. Modify the entries for the serial ports to be similar to:

1 192.168.202.11 - 1

2 192.168.202.12 - 1

3 192.168.202.13 - 1

16 192.168.202.26 - 1

3. Save and exit vi.

4. Set up the aliased IP addresses on the console server. There will be one

config file per aliased IP address.

The config files will reside in /etc/sysconfig/network-scripts/ and are

named ifcfgeth0:nn, where nn corresponds to the aliased device number

(0, 1, 2, … 16).

You may find it easier to create these files on your workstation and then scp

them to /etc/sysconfig/network-scripts/ on the console server. The first file

is named ifcfgeth0:0, the second file is ifcfg-eth0:1, and so on.

root@km3210 /lci# cd /etc/sysconfig/network-scripts

1 2 ... 104 105 106 107 108 109 110 111 112 113 114 ... 140 141

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Lantronix SCS1620 Guide de l'utilisateur Page 109