subnets

[carl_townshend]

when creating subnets, say I have a network 10.1.1.0 255.255.248.0, what does this mean, what will the first ip address in the range be ?

[leonvd79]

ip address 10.1.1.0

subnetmask 255.255.248.0

binary notation:

ip address 00001010.00000001.00000001.00000000

subnetmask 11111111.11111111.11111000.00000000

first 00001010.00000001.00000000.00000000

last 00001010.00000001.00000111.11111111

decimal notation:

first 10.1.0.0 (network)

last 10.1.7.255 (broadcast)

first usable address 10.1.0.1 last 10.1.7.254.

HTH