What is a /29 subnet?
6 usable hosts out of 8 addresses, behind netmask 255.255.255.248.
| Prefix | /29 |
|---|---|
| Netmask | 255.255.255.248 |
| Wildcard | 0.0.0.7 |
| Total addresses | 8 |
| Usable hosts | 6 |
| Example block | 10.0.0.0/29 |
| Usable host range | 10.0.0.1 – 10.0.0.6 |
| Broadcast | 10.0.0.7 |
A /29 fixes the first 29 bits of the address as the network and leaves 3 for hosts — 8 addresses in all.
Of those, 6 can be given to a machine: the first address names the network itself, and the last is the broadcast address.
Small enough to count on your fingers: a handful of servers, a load-balancer pool, or the linking network between two devices.
32 of them fit inside a /24.
Other subnet sizes
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