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46 Chapter 3 IP Firewall Service
Addresses with subnet masks in CIDR notation correspond to address notation
subnet masks.
CIDR Corresponds to Netmask
Number of addresses
in the range
/1 128.0.0.0 4.29x10
9
/2 192.0.0.0 2.14x10
9
/3 224.0.0.0 1.07x10
9
/4 240.0.0.0 5.36x10
8
/5 248.0.0.0 1.34x10
8
/6 252.0.0.0 6.71x10
7
/7 254.0.0.0 3.35x10
7
/8 255.0.0.0 1.67x10
7
/9 255.128.0.0 8.38x10
6
/10 255.192.0.0 4.19x10
6
/11 255.224.0.0 2.09x10
6
/12 255.240.0.0 1.04x10
6
/13 255.248.0.0 5.24x10
5
/14 255.252.0.0 2.62x10
5
/15 255.255.0.0 1.31x10
5
/16 255.255.255.0 65536
/17 255.255.128.0 32768
/18 255.255.192.0 16384
/19 255.255.224.0 8192
/20 255.255.240.0 4096
/21 255.255.248.0 2048
/22 255.255.252.0 1024
/23 255.255.254.0 512
/24 255.255.255.0 256
/25 255.255.255.128 12 8
/26 255.255.255.192 64
/27 255.255.255.224 32
/28 255.255.255.240 16
/29 255.255.255.248 8
/30 255.255.255.252 4
/31 255.255.255.254 2
/32 255.255.255.255 1
LL2351.Book Page 46 Monday, September 8, 2003 2:47 PM