To override the standard modem initialization string, either use the Management Console (refer to Chapter 5) or the command line config tool (refer to Dial-In Configuration Chapter 14).

Enabling Boot Messages on the Console

If you are not using a modem on the DB9 console port and instead wish to connect to it directly via a Null Modem cable, you may want to enable verbose mode, allowing you to see the standard linux start-up messages. This can be achieved with the following commands:

# /bin/config --set=config.console.debug=on # /bin/config --run=console # reboot

If at some point in the future you chose to connect a modem for dial-in out-of-band access, the procedure can be reversed with the following commands.

# /bin/config --del=config.console.debug # /bin/config --run=console # reboot

15.4 IP- Filtering

Standard IP-Filter configuration:

The system uses the iptables utility to provide a stateful firewall of LAN traffic. By default, rules are automatically inserted to allow access to enabled services, and serial port access via enabled protocols. The commands which add these rules are contained in configuration files.

/etc/config/ipfilter

This is an executable shell script which is run whenever the LAN interface is brought up and whenever modifications are made to the iptables configuration as a result of CGI actions or the config command line tool.

The basic steps performed are as follows:

a)The current iptables configuration is erased.

b)If a customized IP-Filter script exists, it is executed and no other actions are performed.

c)Standard policies are inserted which will drop all traffic not explicitly allowed to and through the system.

d)Rules are added which explicitly allow network traffic to access enabled services e.g. HTTP, SNMP etc.

e)Rules are added which explicitly allow traffic network traffic access to serial ports over enabled protocols e.g. Telnet, SSH and raw TCP.

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B096-016 B096-048 and B092-016 User Manual

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Tripp Lite 93-2879, B096-048, B096-016 owner manual IP- Filtering, Standard IP-Filter configuration, Etc/config/ipfilter
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93-2879, B096-016, B096-048 specifications

Tripp Lite is a renowned manufacturer of high-quality connectivity products, and their series of HDMI over IP extenders, including the B096-048, B096-016, and 93-2879, showcase the company's commitment to delivering innovative solutions for audio-visual distribution. These products are designed for seamless video and audio transmission over standard Ethernet networks, making them ideal for a wide range of applications in both commercial and residential settings.

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