Hi, For your use, i believe what is meant is, that you need to use something that has a contiguous binary mask. Otherwise it wont work in that particular situation (for your rp-announcements).
Kim On Wed, Jun 22, 2011 at 9:26 AM, Alef <[email protected]> wrote: > Ok let me put it differently, a /6 we write as 252.0.0.0 resulting in 4 class > a networks and written as 3.255.255.255 in wildcard mask notation. > but what if i put a wildcardmask of 2.255.255.255, or > 00000010.11111111.11111111.11111111, allowing for 228.0.0.0 or 230.0.0.0 can > i write that in prefix notation as well or is that just a feature of wildcard > masks? > > Sorry for any confusion, don't mean to offend just trying to figure it out! > Thanks for your patience :-) > > Alef > > On Jun 22, 2011, at 1:33 AM, Marko Milivojevic wrote: > >> I have to admit I lost you there... I gave you answers to these >> questions several messages ago... I really don't understand the >> question you pose below. When you use /6 it means 252.0.0.0 and cannot >> mean anything else. >> >> -- >> Marko Milivojevic - CCIE #18427 >> Senior Technical Instructor - IPexpert >> >> FREE CCIE training: http://bit.ly/vLecture >> >> Mailto: [email protected] >> Telephone: +1.810.326.1444 >> Web: http://www.ipexpert.com/ >> >> On Tue, Jun 21, 2011 at 20:00, Alef <[email protected]> wrote: >>> Marko, >>> This tool is useless for wildcard masking ? I am talking about wildcard, >>> not subnetting. >>> If i need 228.0.0.0 or 230.0.0.0 >>> i would apply a wildcard mask of 00000010.11111111.11111111.11111111 or >>> 2.255.255.255, or a /6 by which i don't mean contiguous bits as in a >>> subnet, but as in 0 bits >>> for wildcard mask use. >>> >>> The book refers to 226.0.0.0/7 (as to setup both 226 and 227) and sets it >>> up as such. >>> a /7 is 00000001,a /6 is 00000010, a /5 00000101 etc >>> >>> Am i correct or incorrect? Maybe i was not very clear at first, apologies. >>> Alef >>> >>> On Jun 21, 2011, at 9:21 PM, Marko Milivojevic wrote: >>> >>>> ------------------------------------------------ >>>> IP Entered = ..................: 228.0.0.0 >>>> CIDR = ........................: /6 >>>> Netmask = .....................: 252.0.0.0 >>>> Netmask (hex) = ...............: 0xfc000000 >>>> Wildcard Bits = ...............: 3.255.255.255 >>>> ------------------------------------------------ >>>> Network Address = .............: 228.0.0.0 >>>> Broadcast Address = ...........: 231.255.255.255 >>>> Usable IP Addresses = .........: 67,108,862 >>>> First Usable IP Address = .....: 228.0.0.1 >>>> Last Usable IP Address = ......: 231.255.255.254 >>>> >>>> -- >>>> Marko Milivojevic - CCIE #18427 >>>> Senior Technical Instructor - IPexpert >>>> >>>> FREE CCIE training: http://bit.ly/vLecture >>>> >>>> Mailto: [email protected] >>>> Telephone: +1.810.326.1444 >>>> Web: http://www.ipexpert.com/ >>>> >>>> On Tue, Jun 21, 2011 at 14:56, Alef <[email protected]> wrote: >>>>> Hi Guys, >>>>> I've got a bit of a specific question regarding wildcard mask values: >>>>> >>>>> We write the multicast range 224-239 as a /4, using the 0 bits 127 63 31 >>>>> 15 and write it out as .15 or 15.255.255.255 >>>>> 226 and 227 we would as a /7, using the first 7 0 bits and write it out >>>>> as 1.255.255.255 >>>>> >>>>> If that's the case, how do we write out a /6 ? It seems it's .2 (only >>>>> talking first octet here,just think the other 3 octets are 255.255.255 >>>>> for now) >>>>> >>>>> but if i follow the inverse values 127 63 31 15 7 3 1 0 should it not be >>>>> written as .1 if i have 00000010 in the first octet? >>>>> >>>>> slightly confused.. >>>>> _______________________________________________ >>>>> For more information regarding industry leading CCIE Lab training, please >>>>> visit www.ipexpert.com >>>>> >>>>> Are you a CCNP or CCIE and looking for a job? Check out >>>>> www.PlatinumPlacement.com >>>>> >>> >>> > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > -- // Freedom Matters // CCIE #29189 // www.packet-forwarding.net _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
