IP Addresing
11)
Basic communication
22) When to communication with
other platform must have middle man to help communicated
Example os >> tcp/ip
(windows)<<>>appletalk(apple)<<>>ipx/spx(linux)
Exercise: what the result when two
different ip ping with each other.
|
No
|
PC A
|
PC B
|
|
1
|
192.168.1.2
|
192.168.1.100
|
|
|
255.255.255.0
|
255.255.255.0
|
|
Answer
|
A PING B = reply
|
B PING A =reply
|
|
|
|
|
|
2
|
192.168.1.1
|
192.168.2.100
|
|
|
255.255.255.0
|
255.255.255.0
|
|
Answer
|
A PING B = request times out
|
B PING A = request times out
|
|
|
|
|
|
3
|
192.168.1.1
|
192.168.2.100
|
|
|
255.255.0.0
|
255.255.0.0
|
|
Answer
|
A PING B = reply
|
B PING A = reply
|
|
|
|
|
|
4
|
192.168.1.1
|
192.168.2.100
|
|
|
255.255.0.0
|
255.255.255.0
|
|
Answer
|
A PING B = request times out
|
B PING A = request times out
|
Correction
Number 2 ) 192.168.1.1 192.168.2.100
255.255.255.0 255.255.255.0
>>look at the third octel for network
is different
>> so the result when a ping b is DU
and b ping a also DU
Number 4)
|
192.168.1.1
|
192.168.2.100
|
|
255.255.0.0
|
255.255.255.0
|
>> RTO DU
Hint
To determine ip in same group
Look at subnetmask is 0 so network in range
1 – 254
Example : 192.168.1.2 ping 192.168.10.10
255.255.0.0 255.255.0.0
result = reply
when subnet 255 network must same number
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