fix booting virtual router failure
fix booting virtual router failure

hhjuliet/zstack,AlanJinTS/zstack,hhjuliet/zstack,MatheMatrix/zstack,zxwing/zstack-1,winger007/zstack,MatheMatrix/zstack,liningone/zstack,MatheMatrix/zstack,HeathHose/zstack,WangXijue/zstack,WangXijue/zstack,MaJin1996/zstack,zstackio/zstack,zstackorg/zstack,AlanJager/zstack,winger007/zstack,liningone/zstack,Alvin-Lau/zstack,camilesing/zstack,AlanJinTS/zstack,zsyzsyhao/zstack,HeathHose/zstack,camilesing/zstack,zstackio/zstack,AlanJinTS/zstack,zstackio/zstack,zxwing/zstack-1,liningone/zstack,mingjian2049/zstack,WangXijue/zstack,MaJin1996/zstack,Alvin-Lau/zstack,AlanJager/zstack,mingjian2049/zstack,zstackorg/zstack,zxwing/zstack-1,camilesing/zstack,mingjian2049/zstack,AlanJager/zstack,HeathHose/zstack,Alvin-Lau/zstack,zsyzsyhao/zstack