If you set either netmask to
0
,
this option is disabled for the specified IP address type. For example, you
can set a netmask to
0
if your portal or
gateway supports only one IP address type (IPv4 or IPv6) or if you
want to enable this option for only one IP address type (when your
portal or gateway supports both IPv4 and IPv6). You can set only
one netmask to
0
in a given gateway configuration;
you cannot simultaneously set both netmasks to
0
.