How Big Should Your LAN Be SAMIT Video
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In the 1990s, we were all taught that networks should be no larger than a /24 or what used to be called a Class C network. But a lot has changed since then. How big should your LAN be today?
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The timing on this might seem like I recorded it because of some other threads that were asking about this, but it just took a while to get posted. This was actually recorded a week or two ago.
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Hi,
I always opt for /24 and if working with big company where 254 machines/servers/printers wont be suffice go with
/16, however I never used /21 /22 or /23Perhaps i should have used them, but in a sense /16 worked and seems responsive enough, even though it is way bigger than the slots I need
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@emad-r said in How Big Should Your LAN Be SAMIT Video:
Hi,
I always opt for /24 and if working with big company where 254 machines/servers/printers wont be suffice go with
/16, however I never used /21 /22 or /23Perhaps i should have used them, but in a sense /16 worked and seems responsive enough, even though it is way bigger than the slots I need
You should not use arbitrary CIDR sizes like that. As with everything, it should be designed to fit the business.
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@emad-r said in How Big Should Your LAN Be SAMIT Video:
Hi,
I always opt for /24 and if working with big company where 254 machines/servers/printers wont be suffice go with
/16, however I never used /21 /22 or /23Perhaps i should have used them, but in a sense /16 worked and seems responsive enough, even though it is way bigger than the slots I need
It also makes it bigger than it is possible to use, encouraging problems and the bigger you make it, the more likely you are to experience problematic overlaps.
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@jaredbusch said in How Big Should Your LAN Be SAMIT Video:
@emad-r said in How Big Should Your LAN Be SAMIT Video:
Hi,
I always opt for /24 and if working with big company where 254 machines/servers/printers wont be suffice go with
/16, however I never used /21 /22 or /23Perhaps i should have used them, but in a sense /16 worked and seems responsive enough, even though it is way bigger than the slots I need
You should not use arbitrary CIDR sizes like that. As with everything, it should be designed to fit the business.
I wish I could upvote this a few more times. At my last job, they were using a /11 network! That gives something like 2million IP addresses per subnet, I think. This was in 2004, with a colllege of 1,000 people at most. I couldn't even use tools like Spiceworks because they would balk when I told them I wanted to scan 2 million IP addresses, lol.
We fixed that later, of course.
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Isn't that what they say in Texas...the more bigger, the more better...(sarcasm emoji)
