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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.