diff --git a/alpine-network.sh b/alpine-network.sh
index 32434bc..07a4d50 100644
--- a/alpine-network.sh
+++ b/alpine-network.sh
@@ -8,6 +8,9 @@ ipv6_addr=$4
 ipv6_gateway=$5
 is_in_china=$6
 
+# shellcheck disable=SC2154
+ethx="$device"
+
 if $is_in_china; then
     ipv4_dns1='119.29.29.29'
     ipv4_dns2='223.5.5.5'
@@ -21,23 +24,23 @@ else
 fi
 
 get_first_ipv4_addr() {
-    ip -4 -o addr show scope global dev eth0 | head -1 | awk '{print $4}'
+    ip -4 -o addr show scope global dev "$ethx" | head -1 | awk '{print $4}'
 }
 
 is_have_ipv4_addr() {
-    ip -4 addr show scope global dev eth0 | grep -q inet
+    ip -4 addr show scope global dev "$ethx" | grep -q inet
 }
 
 is_have_ipv6_addr() {
-    ip -6 addr show scope global dev eth0 | grep -q inet6
+    ip -6 addr show scope global dev "$ethx" | grep -q inet6
 }
 
 is_have_ipv4_gateway() {
-    ip -4 route show default dev eth0 | grep -q .
+    ip -4 route show default dev "$ethx" | grep -q .
 }
 
 is_have_ipv6_gateway() {
-    ip -6 route show default dev eth0 | grep -q .
+    ip -6 route show default dev "$ethx" | grep -q .
 }
 
 is_have_ipv4() {
@@ -48,8 +51,8 @@ is_have_ipv6() {
     is_have_ipv6_addr && is_have_ipv6_gateway
 }
 
-# 开启 eth0
-ip link set dev eth0 up
+# 开启 ethx
+ip link set dev "$ethx" up
 
 # 等待slaac
 # 有ipv6地址就跳过，不管是slaac或者dhcpv6
@@ -69,12 +72,12 @@ is_have_ipv6_addr && dhcpv6_or_slaac=true || dhcpv6_or_slaac=false
 add_missing_ipv4_config() {
     if [ -n "$ipv4_addr" ] && [ -n "$ipv4_gateway" ]; then
         if ! is_have_ipv4_addr; then
-            ip -4 addr add "$ipv4_addr" dev eth0
+            ip -4 addr add "$ipv4_addr" dev "$ethx"
         fi
 
         if ! is_have_ipv4_gateway; then
             # 如果 dhcp 无法设置onlink网关，那么在这里设置
-            ip -4 route add default via "$ipv4_gateway" dev eth0 onlink
+            ip -4 route add default via "$ipv4_gateway" dev "$ethx" onlink
         fi
     fi
 }
@@ -82,12 +85,12 @@ add_missing_ipv4_config() {
 add_missing_ipv6_config() {
     if [ -n "$ipv6_addr" ] && [ -n "$ipv6_gateway" ]; then
         if ! is_have_ipv6_addr; then
-            ip -6 addr add "$ipv6_addr" dev eth0
+            ip -6 addr add "$ipv6_addr" dev "$ethx"
         fi
 
         if ! is_have_ipv6_gateway; then
             # 如果 dhcp 无法设置onlink网关，那么在这里设置
-            ip -6 route add default via "$ipv6_gateway" dev eth0 onlink
+            ip -6 route add default via "$ipv6_gateway" dev "$ethx" onlink
         fi
     fi
 }
@@ -135,8 +138,8 @@ test_internet
 if $dhcpv4 && ! $ipv4_has_internet &&
     ! [ "$ipv4_addr" = "$(get_first_ipv4_addr)" ]; then
     echo "DHCPv4 can't access Internet. And not match static IPv4."
-    ip -4 addr flush scope global dev eth0
-    ip -4 route flush dev eth0
+    ip -4 addr flush scope global dev "$ethx"
+    ip -4 route flush dev "$ethx"
     add_missing_ipv4_config
     test_internet
     if $ipv4_has_internet; then
@@ -157,10 +160,10 @@ fi
 #   此时alpine只会用ipv6下载apk，而不用会ipv4下载
 # 2 有ipv4地址但没有ipv4网关的情况(vultr)，aria2会用ipv4下载
 if $ipv4_has_internet && ! $ipv6_has_internet; then
-    echo 0 >/proc/sys/net/ipv6/conf/eth0/accept_ra
-    ip -6 addr flush scope global dev eth0
+    echo 0 >"/proc/sys/net/ipv6/conf/$ethx/accept_ra"
+    ip -6 addr flush scope global dev "$ethx"
 elif ! $ipv4_has_internet && $ipv6_has_internet; then
-    ip -4 addr flush scope global dev eth0
+    ip -4 addr flush scope global dev "$ethx"
 fi
 
 # 如果联网了，但没获取到默认 DNS，则添加我们的 DNS
@@ -176,6 +179,7 @@ fi
 # 传参给 trans.start
 $dhcpv4 && echo 1 >/dev/dhcpv4 || echo 0 >/dev/dhcpv4
 $is_in_china && echo 1 >/dev/is_in_china || echo 0 >/dev/is_in_china
+echo "$ethx" >/dev/ethx
 echo "$mac_addr" >/dev/mac_addr
 echo "$ipv4_addr" >/dev/ipv4_addr
 echo "$ipv4_gateway" >/dev/ipv4_gateway
diff --git a/reinstall.sh b/reinstall.sh
index d2e8825..f9cf098 100644
--- a/reinstall.sh
+++ b/reinstall.sh
@@ -1160,7 +1160,16 @@ mod_alpine_initrd() {
         modprobe ipv6
 EOF
 
-    # hack 2
+    # hack 2 设置 ethx
+    ip_choose_if() {
+        ip -o link | grep "@mac_addr" | awk '{print $2}' | cut -d: -f1
+        return
+    }
+
+    collect_netconf
+    get_function_content ip_choose_if | sed "s/@mac_addr/$mac_addr/" | insert_into_file init after 'ip_choose_if\(\)'
+
+    # hack 3
     # udhcpc 添加 -n 参数，请求dhcp失败后退出
     # 使用同样参数运行 udhcpc6
     # TODO: digitalocean -i eth1?
@@ -1172,7 +1181,7 @@ EOF
     mod_cmd6="${mod_cmd4//udhcpc/udhcpc6}"
     sed -i "/$search/c$mod_cmd4 \n $mod_cmd6" init
 
-    # hack 3 /usr/share/udhcpc/default.script
+    # hack 4 /usr/share/udhcpc/default.script
     # 脚本被调用的顺序
     # udhcpc:  deconfig
     # udhcpc:  bound
@@ -1196,8 +1205,7 @@ EOF
     # 允许设置 ipv4 onlink 网关
     sed -Ei 's,(0\.0\.0\.0\/0),"\1 onlink",' usr/share/udhcpc/default.script
 
-    # hack 4 网络配置
-    collect_netconf
+    # hack 5 网络配置
     is_in_china && is_in_china=true || is_in_china=false
     insert_into_file init after 'MAC_ADDRESS=' <<EOF
         source /alpine-network.sh \
diff --git a/trans.sh b/trans.sh
index 6e5350b..8b574cd 100644
--- a/trans.sh
+++ b/trans.sh
@@ -287,7 +287,9 @@ get_ra_to() {
         apk add ndisc6
         # 有时会重复收取，所以设置收一份后退出
         echo "Gathering network info..."
-        _ra="$(rdisc6 -1 eth0)"
+        get_netconf_to ethx
+        # shellcheck disable=SC2154
+        _ra="$(rdisc6 -1 "$ethx")"
         apk del ndisc6
 
         # 显示网络配置
@@ -535,23 +537,25 @@ install_alpine() {
     sed -i '/^#slaac hwaddr/s/^#//' /etc/dhcpcd.conf
     rc-update add networking boot
 
-    # 生成 lo配置 + eth0头部
+    get_netconf_to ethx
+
+    # 生成 lo配置 + ethx头部
     cat <<EOF >/etc/network/interfaces
 auto lo
 iface lo inet loopback
 
-auto eth0
+auto $ethx
 EOF
 
     # ipv4
     if is_dhcpv4; then
-        echo "iface eth0 inet dhcp" >>/etc/network/interfaces
+        echo "iface $ethx inet dhcp" >>/etc/network/interfaces
 
     elif is_staticv4; then
         get_netconf_to ipv4_addr
         get_netconf_to ipv4_gateway
         cat <<EOF >>/etc/network/interfaces
-iface eth0 inet static
+iface $ethx inet static
     address $ipv4_addr
     gateway $ipv4_gateway
 EOF
@@ -567,16 +571,16 @@ EOF
 
     # ipv6
     if is_slaac; then
-        echo 'iface eth0 inet6 auto' >>/etc/network/interfaces
+        echo "iface $ethx inet6 auto" >>/etc/network/interfaces
 
     elif is_dhcpv6; then
-        echo 'iface eth0 inet6 dhcp' >>/etc/network/interfaces
+        echo "iface $ethx inet6 dhcp" >>/etc/network/interfaces
 
     elif is_staticv6; then
         get_netconf_to ipv6_addr
         get_netconf_to ipv6_gateway
         cat <<EOF >>/etc/network/interfaces
-iface eth0 inet6 static
+iface $ethx inet6 static
     address $ipv6_addr
     gateway $ipv6_gateway
 EOF
@@ -918,13 +922,14 @@ mount_pseudo_fs() {
 create_cloud_init_network_config() {
     ci_file=$1
 
+    get_netconf_to ethx
     get_netconf_to mac_addr
     apk add yq
 
     # shellcheck disable=SC2154
     yq -i ".network.version=1 |
            .network.config[0].type=\"physical\" |
-           .network.config[0].name=\"eth0\" |
+           .network.config[0].name=\"$ethx\" |
            .network.config[0].mac_address=\"$mac_addr\" |
            .network.config[1].type=\"nameserver\"
            " $ci_file