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diff --git a/micronugget-subnetting.md b/micronugget-subnetting.md new file mode 100644 index 0000000..ff22c48 --- /dev/null +++ b/micronugget-subnetting.md @@ -0,0 +1,22 @@ +# MicroNugget: How to to Select Subnet Sizes for VLANs + +## The Most Common Subnets Used + +* /22 (255.255.252.0) - 1024 IPs / 1022 usable +* /23 (255.255.254.0) - 512 IPs / 510 usable +* /24 (255.255.255.0) - 256 IPs / 254 usable +* /29 (255.255.255.248) - 8 IPs / 6 usable +* /30 (255.255.255.252) - 4 IPs /2 usable + * point-to-point WAN uplinks + +HSRP / VRRP - Virtual IP Address + +VLANs Sample + +* VLAN 1 = unused (none) +* VLAN 10 = server/printer (/24) +* VLAN 20 = VOIP (/24) +* VLAN 30 = guest (/22) +* VLAN 40 = internal (/22) +* VLAN 40 flex (/24) + |