Subnetting
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@wrcombs said in Subnetting:
we typically only use /24 because 253 (without network address/ broadcast address) host addresses are plenty for a 3 terminal 1 Server site.
Only if you don't have any guests on it.
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@wrcombs said in Subnetting:
we typically only use /24 because 253 (without network address/ broadcast address) host addresses are plenty for a 3 terminal 1 Server site.
Keep in mind that just because it is normally enough, isn't good logic for introducing risk for no reason. That's why you make them larger by default, because there is risk to being small, not to being larger. It's all free, so just type a better number like /23 instead of /24 and voila, you've improved network safety with literally zero effort.
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@scottalanmiller said in Subnetting:
@wrcombs said in Subnetting:
we typically only use /24 because 253 (without network address/ broadcast address) host addresses are plenty for a 3 terminal 1 Server site.
Keep in mind that just because it is normally enough, isn't good logic for introducing risk for no reason. That's why you make them larger by default, because there is risk to being small, not to being larger. It's all free, so just type a better number like /23 instead of /24 and voila, you've improved network safety with literally zero effort.
Except in his case they have absolute control it is only a point-of-sale device net work
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@jaredbusch said in Subnetting:
@scottalanmiller said in Subnetting:
@wrcombs said in Subnetting:
we typically only use /24 because 253 (without network address/ broadcast address) host addresses are plenty for a 3 terminal 1 Server site.
Keep in mind that just because it is normally enough, isn't good logic for introducing risk for no reason. That's why you make them larger by default, because there is risk to being small, not to being larger. It's all free, so just type a better number like /23 instead of /24 and voila, you've improved network safety with literally zero effort.
Except in his case they have absolute control it is only a point-of-sale device net work
They do, at the moment. But things can change. No matter how safe it is today, one decision tomorrow and something totally safe today becomes a pain. Might as well just avoid it.
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@scottalanmiller said in Subnetting:
@wrcombs said in Subnetting:
but when the questions are "you need 4 networks which subnet mask would you use on this ip: 10.1.1.25"
That's gibberish. There's no way to know based on what is stated.
I probably missed the actual question.. but questions similar to that confuse me.
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@wrcombs said in Subnetting:
@scottalanmiller said in Subnetting:
@wrcombs said in Subnetting:
but when the questions are "you need 4 networks which subnet mask would you use on this ip: 10.1.1.25"
That's gibberish. There's no way to know based on what is stated.
I probably missed the actual question.. but questions similar to that confuse me.
It's all math and high school style word problems. It's all about "to meet the requirements", what options would you choose so that the sizes are correct.
