Information
Room#
- Name: Networking
- Profile: tryhackme.com
- Difficulty: Easy
- Description: Part of the Blue Primer series, learn the basics of networking
Write-up
Overview#
Install tools used in this WU on BlackArch Linux:
1 | pikaur -S radare2 |
Disclaimer: The answer essentially requires to search for options in the man page so it doesn't need a detailed write-up.
[Task 1] Kinda like a street address, just cooler.#
#1
How many categories of IPv4 addresses are there?
Answer: 5
#2
Which type is for research? *Looking for a letter rather than a number here
Answer: E
#3
How many private address ranges are there?
Answer: 3
#4
Which private range is typically used by businesses?
Answer: A
#5
There are two common default private ranges for home routers, what is the first one?
Answer: 192.168.0.0
#6
How about the second common private home range?
Answer: 192.168.1.0
#7
How many addresses make up a typical class C range? Specifically a /24
Answer: 256
#8
Of these addresses two are reserved, what is the first addresses typically reserved as?
Answer: network
#9
The very last address in a range is typically reserved as what address type?
Answer: broadcast
#10
A third predominant address type is typically reserved for the router, what is the name of this address type?
Answer: gateway
#11
Which address is reserved for testing on individual computers?
Answer: 127.0.0.1
#12
A particularly unique address is reserved for unroutable packets, what is that address? This can also refer to all IPv4 addresses on the local machine.
Answer: 0.0.0.0
[Task 2] Binary to Decimal#
#1
1001 0010
Answer: 146
1 | $ rax2 10010010d |
#2
0111 0111
Answer: 119
1 | $ rax2 01110111d |
#3
1111 1111
Answer: 255
1 | $ rax2 11111111d |
#4
1100 0101
Answer: 197
1 | $ rax2 11000101d |
#5
1111 0110
Answer: 246
1 | $ rax2 11110110d |
#6
0001 0011
Answer: 19
1 | $ rax2 00010011d |
#7
1000 0001
Answer: 129
1 | $ rax2 10000001d |
#8
0011 0001
Answer: 49
1 | rax2 00110001d |
#9
0111 1000
Answer: 120
1 | $ rax2 01111000d |
#10
1111 0000
Answer: 240
1 | $ rax2 11110000d |
#11
0011 1011
Answer: 59
1 | $ rax2 00111011d |
#12
0000 0111
Answer: 7
1 | $ rax2 00000111d |
[Task 3] Decimal to Binary#
#1
238
Answer: 11101110
1 | $ rax2 b238 |
#2
34
Answer: 00100010
1 | $ rax2 b34 |
#3
123
Answer: 01111011
1 | $ rax2 b123 |
#4
50
Answer: 00110010
1 | $ rax2 b50 |
#5
255
Answer: 11111111
1 | $ rax2 b255 |
#6
200
Answer: 11001000
1 | $ rax2 b200 |
#7
10
Answer: 00001010
1 | $ rax2 b10 |
#8
138
Answer: 10001010
1 | $ rax2 b138 |
#9
1
Answer: 00000001
#10
13
Answer: 00001101
1 | $ rax2 b13 |
#11
250
Answer: 11111010
1 | $ rax2 b250 |
#12
114
Answer: 01110010
1 | $ rax2 b114 |
[Task 4] Address Class Identification#
#1
10.240.1.1
Answer: a
#2
150.10.15.0
Answer: b
#3
192.14.2.0
Answer: c
#4
148.17.9.1
Answer: b
#5
193.42.1.1
Answer: c
#6
126.8.156.0
Answer: a
#7
220.200.23.1
Answer: c
#8
230.230.45.58
Answer: d
#9
177.100.18.4
Answer: b
#10
119.18.45.0
Answer: a
#11
117.89.56.45
Answer: a
#12
215.45.45.0
Answer: c