v2: * Add the check in Ip4Config2SetDefaultIf to avoid the DHCP configuration case. Ip4config2 doesn't check the validity of Ip/Netmask pair, which leads to the invalid combination of Ip and Netmask setting. This patch is to resolve the issue. Cc: Hegde Nagaraj P <nagaraj-p.hegde@hpe.com> Cc: Subramanian Sriram <sriram-s@hpe.com> Cc: Ye Ting <ting.ye@intel.com> Cc: Fu Siyuan <siyuan.fu@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com> Reviewed-by: Sriram Subramanian <sriram-s@hpe.com> Reviewed-by: Hegde Nagaraj P <nagaraj-p.hegde@hpe.com>