How can I add virtual interface in SUSE Linux Enterprise Server 11 permanently?


If using a static configuration and without NetworkManager enabled you have to set an IP address and a netmask or prefix length with IPADDR, NETMASK or PREFIXLEN variables in /etc/sysconfig/network/ifcfg-INTERFACE_IDENTIFIER file.

For multiple addresses use these variables multiple times and extend them with different suffixes. For example IPADDR_1=, IPADDR_2=, NETMASK_1=, NETMASK_2= and so on. See section 'Multiple addresses' in ifcfg manpage).


By using the vconfig command:

# vconfig add eth0 5

This option is good if you use DHCP, if the vlan already on the switch port and is generating DHCP she will automatically get the address:

# ifconfig eth0.5

If vlan will have a static address then use:

# ifconfig eth0.5 netmask broadcast up

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