TCP-IP:
__.__.__.__
class A 255.0.0.0 (1-126) network ID(_), host ID(._._._)
class B 255.255.0.0 (128-191) network ID (_._.) host ID (._._)
class C 255.255.255.0 (192-223) network ID (_._._.) hostID (._)
class D 224.224.224.224 (224-239) multicast
class e FFU-for future use (240-255)
APIPA- 169.254.x.x works in 98/2000 when there is no dhcp available
(automatic private ip addressing).
converting 2 binary format:
128 64 32 16 8 4 2 1 --> 8= 0.0.0.0.1.0.0.0, 15= 0.0.0.0.1.1.1.1
100= 0.1.1.0.0.1.0.0 (can use saentific calculator)
CIDR: 10.217.123.7/20 <-- subnet musk
(put 20 of "1" to the left: 11111111.11111111.11110000.00000000
255 . 255 . 240 . 0
x.y.z.f./25 --> half class c (128 stations)
example:
10 . 217 . 123 . 7 \10
ip 00001010.11011001.01111011.00000111
sm(subnet musk) 11111111.11000000.00000000.00000000 = 255.192.0.0
ni(~network identifier) 00001010.11000000.00000000.00000000 = 10.192.0.0
----> [2^n-2] (n= nomber of zeroes)
w.x.y.z/1 128.0.0.0 (31 zeroes) 2,147,483,646 hosts
w.x.y.z/3 224.0.0.0 (29 zeroes) 536,870,910 hosts
w.x.y.z/30 255.255.255.252 (2 zeroes) 2 hosts
iprange of subnet mask 255.255.255.240: 1-14 (no 15,16) [4 zeros 14 hosts!]
17-30 (no 31,32)
33-46 (no 47,48)
49-62 (no 63,64)
255.255.255.224: [5 zeros 30 hosts]
/31 255.255.255.254 (1 zero) not available
/32 255.255.255.255 (0 zeroes) not available
errors:
-u cannot pass hebrew stuff or write something from 2000 to smb!
-if there is dhcp around the 2000s dhcp wont work
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