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Hello Jim,

Am 19.04.2024 um 16:30 schrieb Jim Oberholtzer <midrangel@xxxxxxxxxxxxxxxxx>:

I seem to have a mind block. I need the correct netmask/cidr for two
networks to combine.
172.29.100.x
172.29.101.x

I'm using /22 (255.255.252.0) but that does not seem to be correct.

You should use a /23.

Helpful tool:

~ $ sipcalc 172.29.100.0/23
-[ipv4 : 172.29.100.0/23] - 0

[CIDR]
Host address - 172.29.100.0
Host address (decimal) - 2887607296
Host address (hex) - AC1D6400
Network address - 172.29.100.0
Network mask - 255.255.254.0
Network mask (bits) - 23
Network mask (hex) - FFFFFE00
Broadcast address - 172.29.101.255
Cisco wildcard - 0.0.1.255
Addresses in network - 512
Network range - 172.29.100.0 - 172.29.101.255
Usable range - 172.29.100.1 - 172.29.101.254

:wq! PoC




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