Ip addresses – Datatek AIX V5.3 (32/64 bit kernel) User Manual
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I P - C o m m K i t I n s t a l l a t i o n a n d A d m i n i s t r a t i o n G u i d e
f o r A I X – R e l e a s e 1 . 0 . 2 2
11/28/05
Datatek Applications Inc.
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3.2 IP
A
DDRESSES
This section assumes a basic knowledge of IP networks. If you don’t have this knowledge, we
recommend that you learn a little about them. We recommend Internetworking with TCP/IP, by
Douglas E. Comer. Otherwise, enlist the help of your IP network administrator.
Each UTM module requires an IP address, as does the host computer. You should obtain IP
addresses for the UTM modules from your IP network administrator. This document assumes that
the host computer is already connected to a LAN, and thus already has an IP address assigned
to it. If your host connects to several LANs, it will have several IP addresses assigned to it, one
for each LAN. You should find out the addresses assigned to the LAN that the host will use for
communicating with the UTM. You need the host’s IP addresses in numeric form for configuring
the UTM. To obtain this, enter the following command on the host computer:
$ ifconfig -a
The command should produce output similar to the following:
lo0: flags=4049
inet 127.0.0.1 netmask ff000000
le0: flags=4043
inet 135.17.59.166 netmask ffffff00 broadcast 135.17.59.255
In this example, the host has one LAN interface labeled le0. The inet field in the report shows
that the IP address assigned to le0 is 135.17.59.166.
To configure the UTM, you also need the subnet mask for the IP subnets to which it attaches.
Most often, an IP subnet corresponds to a LAN segment. For example, all interfaces attached to