diff --git a/src/etc/one-context.d/loc-10-network.d/functions b/src/etc/one-context.d/loc-10-network.d/functions
index 2854ccc..cdcdeb1 100644
--- a/src/etc/one-context.d/loc-10-network.d/functions
+++ b/src/etc/one-context.d/loc-10-network.d/functions
@@ -410,13 +410,6 @@ get_gateway()
     get_iface_var "$1" "GATEWAY"
 )
 
-# Gets the network gateway6
-# arg: <iface>
-get_gateway6()
-(
-    get_iface_var "$1" "GATEWAY6"
-)
-
 # arg: <iface>
 get_ip()
 (
@@ -494,17 +487,19 @@ setup_iface_vars()
 
     export mac=$(get_iface_var "$1" "MAC")
     export dev=$(get_dev "$_iface_mac" "$mac")
-    #export mtu=$(get_mtu "$1")
     export mtu=$(get_iface_var "$1" "MTU")
     export gateway=$(get_gateway "$1")
-    export gateway6=$(get_gateway6 "$1")
     export metric=$(get_iface_var "$1" "METRIC")
-    export ip6_metric=$(get_iface_var "$1" "IP6_METRIC")
     export dns=$(get_dns "$1")
     export search_domains=$(get_search_domain "$1")
     export method=$(get_iface_var "$1" "METHOD")
+    export ip6_gateway=$(get_iface_var "$1" "IP6_GATEWAY")
+    export ip6_metric=$(get_iface_var "$1" "IP6_METRIC")
     export ip6_method=$(get_iface_var "$1" "IP6_METHOD")
 
+    # backward compatibility
+    [ -z "$ip6_gateway" ] && ip6_gateway=$(get_iface_var "$1" "GATEWAY6")
+
     # defaults
     [ -z "$ip6_metric" ] && ip6_metric="${metric}"
     [ -z "$method"  ]    && method='static'
diff --git a/src/etc/one-context.d/loc-10-network.d/netcfg-bsd b/src/etc/one-context.d/loc-10-network.d/netcfg-bsd
index 7e50176..01deafb 100644
--- a/src/etc/one-context.d/loc-10-network.d/netcfg-bsd
+++ b/src/etc/one-context.d/loc-10-network.d/netcfg-bsd
@@ -77,7 +77,7 @@ export mac
 export dev
 export mtu
 export gateway
-export gateway6
+export ip6_gateway
 export method
 export ip6_method
 export metric
@@ -162,8 +162,8 @@ gen_iface6_conf()
 
     ###
 
-    if [ -n "${gateway6}" ]; then
-        echo "ipv6_defaultrouter=\"${gateway6}\"" >> /etc/rc.conf.d/routing
+    if [ -n "${ip6_gateway}" ]; then
+        echo "ipv6_defaultrouter=\"${ip6_gateway}\"" >> /etc/rc.conf.d/routing
     fi
 }
 
diff --git a/src/etc/one-context.d/loc-10-network.d/netcfg-interfaces b/src/etc/one-context.d/loc-10-network.d/netcfg-interfaces
index 62baea9..fd13bf7 100644
--- a/src/etc/one-context.d/loc-10-network.d/netcfg-interfaces
+++ b/src/etc/one-context.d/loc-10-network.d/netcfg-interfaces
@@ -128,7 +128,7 @@ export mac
 export dev
 export mtu
 export gateway
-export gateway6
+export ip6_gateway
 export method
 export ip6_method
 export metric
@@ -222,12 +222,12 @@ EOT
     # they override the metric on IPv4 routes. We better configure
     # default route via up script.
     if [ "${os_id}" = 'alpine' ] && \
-       [ -n "${gateway6}" ] && [ -n "${ip6_metric}" ];
+       [ -n "${ip6_gateway}" ] && [ -n "${ip6_metric}" ];
     then
-        echo "  up ip -6 route add default via ${gateway6} dev ${dev} metric ${ip6_metric}"
+        echo "  up ip -6 route add default via ${ip6_gateway} dev ${dev} metric ${ip6_metric}"
 
-    elif [ -n "${gateway6}" ]; then
-        echo "  gateway ${gateway6}"
+    elif [ -n "${ip6_gateway}" ]; then
+        echo "  gateway ${ip6_gateway}"
 
         if [ -n "${ip6_metric}" ]; then
             echo "  metric ${ip6_metric}"
diff --git a/src/etc/one-context.d/loc-10-network.d/netcfg-netplan b/src/etc/one-context.d/loc-10-network.d/netcfg-netplan
index f5062a1..a2c0e94 100644
--- a/src/etc/one-context.d/loc-10-network.d/netcfg-netplan
+++ b/src/etc/one-context.d/loc-10-network.d/netcfg-netplan
@@ -85,7 +85,7 @@ export mac
 export dev
 export mtu
 export gateway
-export gateway6
+export ip6_gateway
 export method
 export ip6_method
 export metric
@@ -145,10 +145,10 @@ EOT
         fi
     fi
 
-    if [ -n "${gateway6}" ] && { [ -z "${ip6_method}" ] || [ "${ip6_method}" = 'static' ]; }; then
+    if [ -n "${ip6_gateway}" ] && { [ -z "${ip6_method}" ] || [ "${ip6_method}" = 'static' ]; }; then
         cat <<EOT
         - to: "::/0"
-          via: ${gateway6}
+          via: ${ip6_gateway}
 EOT
 
         # Force default Linux IPv6 metric (man 8 route) to override
diff --git a/src/etc/one-context.d/loc-10-network.d/netcfg-networkd b/src/etc/one-context.d/loc-10-network.d/netcfg-networkd
index 565b2da..825ac96 100644
--- a/src/etc/one-context.d/loc-10-network.d/netcfg-networkd
+++ b/src/etc/one-context.d/loc-10-network.d/netcfg-networkd
@@ -76,7 +76,7 @@ export mac
 export dev
 export mtu
 export gateway
-export gateway6
+export ip6_gateway
 export method
 export ip6_method
 export metric
@@ -210,8 +210,8 @@ EOT
 [Route]
 EOT
 
-    if [ -n "$gateway6" ]; then
-        echo "Gateway=${gateway6}"
+    if [ -n "$ip6_gateway" ]; then
+        echo "Gateway=${ip6_gateway}"
 
         if [ -n "$ip6_metric" ]; then
             echo "Metric=${ip6_metric}"
diff --git a/src/etc/one-context.d/loc-10-network.d/netcfg-nm b/src/etc/one-context.d/loc-10-network.d/netcfg-nm
index 6274b66..e84ade6 100644
--- a/src/etc/one-context.d/loc-10-network.d/netcfg-nm
+++ b/src/etc/one-context.d/loc-10-network.d/netcfg-nm
@@ -72,7 +72,7 @@ export mac
 export dev
 export mtu
 export gateway
-export gateway6
+export ip6_gateway
 export method
 export ip6_method
 export metric
@@ -159,8 +159,8 @@ gen_iface6_conf()
         nmcli con mod "${dev}" +ipv6.addresses "${ip6_ula}/64"
     fi
 
-    if [ -n "$gateway6" ]; then
-        nmcli con mod "${dev}" ipv6.gateway "${gateway6}"
+    if [ -n "$ip6_gateway" ]; then
+        nmcli con mod "${dev}" ipv6.gateway "${ip6_gateway}"
     else
         nmcli con mod "${dev}" ipv6.gateway ""
     fi
diff --git a/src/etc/one-context.d/loc-10-network.d/netcfg-scripts b/src/etc/one-context.d/loc-10-network.d/netcfg-scripts
index 863623f..0f1fe0b 100644
--- a/src/etc/one-context.d/loc-10-network.d/netcfg-scripts
+++ b/src/etc/one-context.d/loc-10-network.d/netcfg-scripts
@@ -86,7 +86,7 @@ export mac
 export dev
 export mtu
 export gateway
-export gateway6
+export ip6_gateway
 export method
 export ip6_method
 export metric
@@ -202,12 +202,12 @@ EOT
         fi
     fi
 
-    if [ -n "${gateway6}" ]; then
+    if [ -n "${ip6_gateway}" ]; then
         if [ "${config_path}" = "/etc/sysconfig/network" ]; then
-            echo "default ${gateway6} - ${dev} ${ip6_metric:+metric ${ip6_metric}}" \
+            echo "default ${ip6_gateway} - ${dev} ${ip6_metric:+metric ${ip6_metric}}" \
                 >> "/etc/sysconfig/network/ifroute-${dev}"
         else
-            echo "default via ${gateway6} dev ${dev} ${ip6_metric:+metric ${ip6_metric}}" \
+            echo "default via ${ip6_gateway} dev ${dev} ${ip6_metric:+metric ${ip6_metric}}" \
                 >> "${config_path}/route6-${dev}"
         fi
     fi