> I can't find it in the max4000 manual: > How do I calculate the 'ascend' netmasks ? > Instead of 255.255.255.x /xx is used. There is a chart on the Ascend website. I found one at the bottom of the ascend p 25 quick setup. Its pretty simple to figure out actually. Its based on # of bits. Like this: 255.255.255.255, see the last chunk of the subnet mask, that 255 is base 10 and it equals 11111111 base 2. To subnet, you treat PART of that 11111111 as the network # and the other part as the ip range by changing some of the 1's to zeros. For example to get a combo of 4 addresses, you need to change the LAST 2 bits to 0, this is because the number 4 is the maximum number capable of being represented in base 2 with 2 bits, 00, 01, 10, and 11. So the subnet looks like 11111100. since there are 4 PIECES to the address, think of it as 32 bits, and we just took 2 bits away from the network part of the address so now the "/" netmask would be 32-2 or 30. So it would look like address=192.168.1.0/30 this would give you the first 4 addresses out of 255 for that class C. Of course you cannot use the first or last address cuz these are network # and broadcast address, so with a /30 subnet, you only get 2 useable addresses. With a /29 subnet you get 6 addresses which is 8 (11111000)-2. Now this translates back to the standard netmaks by simply translating all those 1's and 0's back into base 10. For example, 11111100 base 2 = 252 base 10, so the "real" netmask is 255.255.255.252. Catching on? > > Thilo > -- > thilo@vossnet.de Thilo Wunderlich Voss Net GmbH > ++ Ascend Users Mailing List ++ > To unsubscribe: send unsubscribe to ascend-users-request@bungi.com > To get FAQ'd: <<A HREF="http://www.nealis.net/ascend/faq">http://www.nealis.net/ascend/faq</A>> > ~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~ Jake Messinger 713-772-6690 jake@ams.com Advanced Medical Systems, Inc. jake@uh.edu 8300 Bissonnet #400 Houston, Texas 77074 <A HREF="http://www.ams.com/~jake">http://www.ams.com/~jake</A> ~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~ ++ Ascend Users Mailing List ++ To unsubscribe: send unsubscribe to ascend-users-request@bungi.com To get FAQ'd: <<A HREF="http://www.nealis.net/ascend/faq">http://www.nealis.net/ascend/faq</A>> </PRE> <!--X-MsgBody-End--> <!--X-Follow-Ups--> <!--X-Follow-Ups-End--> <!--X-References--> <HR> <STRONG>References</STRONG>: <UL> <LI><STRONG><A HREF="msg08714.html">(ASCEND) how to calculate the 'ascend' netmask</A></STRONG></LI> <UL> <LI><EM>From</EM>: Thilo Wunderlich <thilo@kirk.vossnet.de></LI> </UL> </UL> <!--X-References-End--> <!--X-BotPNI--> <HR> <UL> <LI>Prev by Date: <STRONG><A HREF="msg08741.html">Re: (ASCEND) MAX stacking</A></STRONG> </LI> <LI>Next by Date: <STRONG><A HREF="msg08739.html">(ASCEND) IPV6</A></STRONG> </LI> <LI>Prev by thread: <STRONG><A HREF="msg08789.html">Re: (ASCEND) Radius attribute to differentiate between ISDN and analogue</A></STRONG> </LI> <LI>Next by thread: <STRONG><A HREF="msg08861.html">Re: (ASCEND) how to calculate the 'ascend' netmask</A></STRONG> </LI> <LI>Index(es): <UL> <LI><A HREF="mail6.html#08740"><STRONG>Main</STRONG></A></LI> <LI><A HREF="thrd164.html#08740"><STRONG>Thread</STRONG></A></LI> </UL> </LI> </UL> <!--X-BotPNI-End--> <!--X-User-Footer--> <!--X-User-Footer-End--> </BODY> </HTML>