Hello!

've a test VLAN0, created via YaST2 standard wizard interface.

Result config:

=====
k_mikhail@linux-mk500:~> cat /etc/sysconfig/network/ifcfg-vlan0
BOOTPROTO='static'
BROADCAST=''
ETHERDEVICE='eth0'
ETHTOOL_OPTIONS=''
IPADDR='192.168.70.222/24'
MTU=''
NAME=''
NETWORK=''
REMOTE_IPADDR=''
STARTMODE='auto'
VLAN_ID='0'
======

The question is about REMOTE_IPADDR='' field: it is present in final config,
but cannot be defined in YaST2 GUI.

Steps-to-reproduce:

1. Open YaST2 via X11 or terminal.
2. Add a VLAN interface via YaST2.
3. Check 'cat /etc/sysconfig/network/ifcfg-vlan0' output after 2. is finished.

Possible solution:

1. Have specific filed in YaST2 GUI for that to have possibility to add such
address.
2. Keep REMOTE_IPADDR='' as is in case of leaving this field empty in YaST2
settings.