local mav4 = state:get("network", net, "netmask")
local ipv6 = state:get("network", net, "ip6addr")
- if ipv4 and mav4 and #ipv4 > 0 and #mav4 > 0 then
+ if ipv4 and #ipv4 > 0 then
+ if mav4 and #mav4 == 0 then mav4 = nil end
+
ipv4 = luci.ip.IPv4(ipv4, mav4)
if ipv4 then