Switch Router Adapter Owner's Manual

Configuring the SP Switch Router Adapter

Step 2. Assign IP addresses

SP Switch Router Adapter Guide - 1.4 Update 2 October 22, 1999 2-21

Step 2. Assign IP addresses

You need to assign an IP address and related parameters to the SP Switch Router Adapter

interface. You assign a primary IP address and, if needed, an alias address to support multiple

subnets on the same physical interface. Netmasks for each address can differ in length. Refer

to Appendix C, “Network Conﬁguration Examples,” for ways to use IP addressing and subnet

masks.

There are two methods to assign IP addresses, one recommended, one optional.

Method 1: Recommended, use SP SNMP Manager

This is the method recommended for conﬁguring the SP Switch Router Adapter card.

From a system point of view, it is appropriate to treat the SP Switch Router Adapter card as an

extension node in the SP system. All conﬁguration parameters should be entered using the

SMIT panels. Remember that if you enter conﬁguration information into SP Switch Router

conﬁguration ﬁles, you will also need to access the SMIT panels and re-enter information

those panels require.

Refer speciﬁcally to the “Managing Extension Nodes” chapter in the PSSP Administration

Guide for information about setting up SNMP to monitor the SP Switch Router system and

conﬁgure the SP Switch Router Adapter media card.

Method 2: Optional, edit /etc/grifconﬁg.conf

Edit the /etc/grifconfig.conf ﬁle to assign an IP address to each logical SP Switch

Router interface. You also can provide other information about the logical IP network to which

that interface is physically attached.

Each logical interface is identiﬁed in /etc/grifconfig.conf as to its:

– interface name (an SP Switch Router convention, deﬁned below)

– Internet address

– netmask

– broadcast/destination address

– argument ﬁeld (can specify a default MTU value here)

The format for an entry (all lower case) in the /etc/grifconfig.conf ﬁle is:

# /etc/grifconfig.conf

#name address netmask broad-dest arguments

gt020 192.168.15 255.255.255.0 - mtu 65520

# primary

gt020 192.168.16 255.255.255.192 - mtu 65520

# alias

Remember that if you enter conﬁguration information into SP Switch Router conﬁguration

ﬁles, you will also need to access the SMIT panels and re-enter information those panels

require.

If you have not done so, use the super> prompt to establish the UNIX shell you will use to

conﬁgure the SP Switch Router Adapter card.