& HP- UX; 10. 20 i les versions anteriors no manejaven correctament les difusions excepte que tinguessin una mascara de xarxa de les classes A, B, C o D (ead;, no hi ha suport per a CIDR).
& HP-UX; 10.20 and earlier do not properly handle broadcast unless you have a Class A, B, C or D netmask (ie;, there is no CIDR support).