security now and you'll get an additional NUMBER_TOKEN off all consumer subscriptions for the lifetime of your active subscription just use the code snNUMBER_TOKEN this would be a great gift to yourself give it to yourself or a hanukkah or a friend if you know somebody wants to get into i.t uh NUMBER_TOKEN off as long as you stay active that that could be forever with the offer code snNUMBER_TOKEN it pro dot tv slash security now it pro tv build or expand your i.t career and enjoy the journey great folks doing a really bang-up job of of getting people ready for the i.t world and keeping people in the it world up to date you need to do that of course i t pro tv slash security now use that address you know right you know the drill so steve gets credit uh and thank you i.t pro tv for uh another great year we've been together for i don't know seven eight years now since they started uh NUMBER_TOKEN NUMBER_TOKEN yeah all right now let's get let's go bonkers about bogons bonkers about bogons okay and bogans is a real thing if you uh i appreciate that you did not put it into the google machine uh had you done so you'd have found out what they were no spoilers uh no before we begin since we're necessarily going to be talking about network addressing i want to make sure everyone's on the same page about the nomenclature for describing ipvNUMBER_TOKEN networks okay one of the many brilliant innovations made by the designers of the internet's routing architecture was this idea of dividing the NUMBER_TOKEN bits of ipvNUMBER_TOKEN address space into a network number and the number of a specific machine within that network so when for example we talk about the NUMBER_TOKEN dot network we mean naip whose first leftmost NUMBER_TOKEN bits or also called an octet of network address is NUMBER_TOKEN and that means that all the machines within that network their ips begin with NUMBER_TOKEN and then the the other NUMBER_TOKEN bits differ the clearer and more formal way of describing it is to say NUMBER_TOKEN NUMBER_TOKEN where the NUMBER_TOKEN refers to the number of bits counting from the left which will be used to designate the network number and the rest of the bits to the right will be used to designate a specific machine within that network so last week i prefaced our discussion of the ietf stated intention to redefine the entire currently unroutable NUMBER_TOKEN slash eight network into two pieces to cut it in half that we'd have NUMBER_TOKEN NUMBER_TOKEN which would remain unroutable and be used as a local net which contains the default localhost ip of NUMBER_TOKENNUMBER_TOKENNUMBER_TOKEN plus NUMBER_TOKEN other NUMBER_TOKEN ips then the rest of the NUMBER_TOKEN-NUMBER_TOKEN which would run from NUMBER_TOKENNUMBER_TOKEN NUMBER_TOKEN through NUMBER_TOKEN NUMBER_TOKEN would be newly made available to the iana and the regional internet registries as blocks of newly routable ipvNUMBER_TOKEN addresses and the feeling is that's a useful amount that's more than NUMBER_TOKEN million addresses okay but it turns out that this ietf drafts proposal is only the tip of the iceberg and since our discussion of this bit of an iceberg drew so much interest and response last week it was kind of overwhelming uh i decided that while we were on the topic i
START_SPONSOR_TOKEN security now and you'll get an additional NUMBER_TOKEN off all consumer subscriptions for the lifetime of your active subscription just use the code snNUMBER_TOKEN this would be a great gift to yourself give it to yourself or a hanukkah or a friend if you know somebody wants to get into i.t uh NUMBER_TOKEN off as long as you stay active that that could be forever with the offer code snNUMBER_TOKEN it pro dot tv slash security now it pro tv build or expand your i.t career and enjoy the journey great folks doing a really bang-up job of of getting people ready for the i.t world and keeping people in the it world up to date you need to do that of course i t pro tv slash security now use that address you know right you know the drill so steve gets credit uh and thank you i.t pro tv for uh another great year we've been together for i don't know seven eight years now since they started uh NUMBER_TOKEN NUMBER_TOKEN yeah END_SPONSOR_TOKEN