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SLE 15 - Configure a static network address while in the Rescue System

This document (7023891) is provided subject to the disclaimer at the end of this document.

Environment

Booting to the Rescue System from SUSE Linux Enterprise Server 15 (or later) media.

Situation

Rescue System is booted and running but network access is needed.

Resolution

With SLE15 the "ip" command is used to setup an available network interface.

Assign a Static Address
ip a add {ip_addr/mask} dev {interface}
Example to assign 192.168.1.200/255.255.255.0 to eth0
ip a add 192.168.1.200/255.255.255.0 dev eth0
OR
ip a add 192.168.1.200/24 dev eth0

Assign a Default Gateway
ip route add default via {gateway_addr}
Example to set 192.168.1.254 as the default gateway
ip route add default via 192.168.1.254

Assign Additional Static Routes (if needed)
ip route add {network} via {gateway_addr}
Example to set 192.168.1.254 as the gateway for subnet 192.168.1.0
ip route add 192.168.1.0/24 via 192.168.1.254

Bring Up The Network Interface
ip link set dev {device}  {up|down}
Example to bring up eth0 interface
ip link set dev eth0 up

At this point there should be connectivity, however if a change is needed the assigned IP address can be removed so a new one can be used.
ip a del {current_ip_addr} dev {device}
Example deleting 192.168.1.200 from eth0
ip a del 192.168.1.200 dev eth0

The routes can also be removed.
ip route del {gateway_addr}
OR
ip route del {network} dev {device}
Example removing default gateway 192.168.1.254
ip route del 192.168.1.254
Example removing 192.168.1.0 from eth0
ip route del 192.168.1.0/24 dev eth0







Cause

Current Linux releases have moved from "ifconfig" to "ip" for CLI configuration of the network interfaces.

Disclaimer

This Support Knowledgebase provides a valuable tool for NetIQ/Novell/SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7023891
  • Creation Date:22-MAY-19
  • Modified Date:22-MAY-19
    • SUSESUSE Linux Enterprise Desktop
      SUSE Linux Enterprise Server
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