HP LCS60 manual Ifconfig Ifconfig 1M, Broadcast addr, Hostgroups, Join addr, Leave addr

IFCONFIG IFCONFIG (1M)

NAME

ifconfig – configure interface parameters

SYNOPSIS

ifconfig interface [address_family] [address [dest_address]] [parameters]

DESCRIPTION

The ifconfig command is used to display and modify the configuration of a net- work interface. Only the superuser can modify an interface configuration.

Interface is the name assigned to the interface in the network configuration file inetinit.cf(4). When no other parameters are supplied, ifconfig displays the current configuration of the specified network interface.

The only address-familycurrently supported is the DARPA Internet family, inet.

The interface address is initially set to the Internet address of the host name assigned to the interface in the inetinit.cf(4) file. It can be changed by specifying either a host name (see named(1M) or hosts(4)) or an Internet address (see inet(3)). The destination address for a point-to-point interface can be assigned in the same manner.

The following parameters can be set with ifconfig:

broadcast addr

(Internet Address family only) Identify the address to be used for broad- casts to the network. The default broadcast address is the interface address with a host part (as identified by the subnet mask) of all 1's. This setting affects only the broadcast address for transmitted packets; addresses of all 0's and all 1's are both recognized as broadcasts on incom- ing packets.

down Mark an interface as being down. No messages will be transmitted through an interface that is down. If possible, the interface will be reset to disable reception as well. This action does not automatically disable routes using the interface.

hostgroups

Display the multicast host groups to which the interface currently belongs.

join addr

Join a multicast host group. Packets to the multicast address addr will be accepted by the interface. Joining any individual multicast host group will also automatically join the "all-hosts" multicast group with address 244.0.0.1.

leave addr

Leave a multicast host group. Packets to the multicast address addr will no longer be accepted by the interface. Leaving all other individual multicast host groups will also automatically leave the "all-hosts" multicast group with address 244.0.0.1.

Issue 3 E-19