+# insert commas when having multiple nameservers
+if [ -n "$NAMESERVERS_" ]; then
+ DNS_LINE_="option domain-name-servers $(echo "$NAMESERVERS_" | sed -e 's/\([0-9]\) \([0-9]\)/\1, \2/g');"
+fi
+# note: we don't support multiple routers options
+if [ -n "$GW_" ]; then
+ ROUTERS_LINE_="option routers $GW_;"
+fi
+