Setting Ethernet Ip Parameters; Setting The Ip Address; Setting The Subnet Mask; Setting The Broadcast Address - Lucent Technologies PortMaster 4 Configuration Manual

Setting Ethernet IP Parameters

Output Filters
When an output filter is used, all traffic going out of the PortMaster on the Ethernet
interface is compared to the output filter rules. Only packets permitted by the filter rules
are sent by the PortMaster.
Note – ICMP and UDP packets generated by the PortMaster are never blocked by the
output filter.
To apply an output filter to the Ethernet interface, use the following command:
Command> set Ether0 ofilter Filtername
To remove the output filter, omit the filter name when entering the command.

Setting Ethernet IP Parameters

This section describes the IP commands, keywords, and values that must be entered for
IP protocol support.

Setting the IP Address

During the PortMaster installation process, you set the IP address for the Ether0 and
Ether1 interfaces. If you have one or more standalone Ethernet boards installed, you
must configure an IP address and netmask and set broadcast on the Ethernet interfaces
on those boards as well. See "Configuring Standalone Ethernet Boards" on page 4-8.
To set or change the IP address of an Ethernet interface, use the following command:
Command> set Ether0 address Ipaddress
Note – If you change the IP address of an Ethernet interface, you must reboot the
PortMaster for the change to take effect.

Setting the Subnet Mask

The default subnet mask is 255.255.255.0. If you have divided your network into
subnets, enter the subnet mask that identifies how your network addresses are divided
between the network portion and the host portion.
To set the subnet mask, use the following command:
Command> set Ether0 netmask Ipmask
See Appendix A, "Networking Concepts," for more information about using subnet
masks.

Setting the Broadcast Address

You can define the IP address used as the local broadcast address. The RIP routing
protocol uses this address to send information to other hosts on the local Ethernet
network. The actual broadcast address is constructed from the IP address of the Ethernet
4-4 PortMaster 4 Configuration Guide