And yes we run just one internal subnet of 255.255.252.0, with the broadband on the foreign x.x.254.0 subnet. Interesting to note that linux counts x.x.253.0 as an invalid subnet with the foreign
That's because it is invalid, valid subnet masks are 128.0.0.0, 192.0.0.0, 224.0.0.0, 240.0.0.0, 248.0.0.0, 252.0.0.0, 254.0.0.0, 255.0.0.0, 255.128.0.0, 255.192.0.0 255.224.0.0, 255.240.0.0, 255.248.0.0, 255.252.0.0, 255.254.0.0, 255.255.0.0, 255.255.128.0, 255.255.192.0, 255.255.224.0, 255.255.240.0, 255.255.248.0, 255.255.252.0, 255.255.254.0, 255.255.255.0, 255.255.255.128.0. 255.255.255.192, 255.255.255.224, 255.255.255.240, 255.255.255.248, 255.255.255.252, 255.255.255.254 With 0.0.0.0 and 255.255.255.255 having special meanings. An alternative way of indicating subnet masks is simply the number of 1's on the LHS of the 32 bit number. With 1 being 128.0.0.0 and 31 being 255.255.255.254. 255.255.252.0 is 22 and 255.255.254.0 is 23 The first gives you 1022 usable IP addresses, the second 510.
subnet, even tho NT is fine with it - 254 is fine on the test comp btw.
That's NT for you. -- Mark Evans St. Peter's CofE High School Phone: +44 1392 204764 X109 Fax: +44 1392 204763