help me with my homework!!!!

[hieuduc]

depending on your hash (fast slow) you should consider using a simple mask attack or for the last masks some more specialised

the problem is, you have to think of the possible combinations of diffenent lenghts

first start like this
maskfile
?d.?d.?d?d -> this will test 0.0.0.0 - 9.9.9.9
now start adding length
?d.?d.?d.?d?d -> 0.0.0.00 - 9.9.9.99

you will need to generate masks for every different combinattion the different lenght like that, for every position, this should be 81 masks total

as mentioned before, depending on your hash or how fast you can attack, the last masks are definitly some you should modify or specialise for reducing the keyspace like that

1?d?d.1?d?d.1?d?d.1?d?d
12345,2?1?1.2?1?1.2?1?1.2?1?1

for more details on maskattack and maksfiles see https://hashcat.net/wiki/doku.php?id=mask_attack

or you are porgramming a little script outputting the candidates and feed hahscat through pipe

I do understand your idea but i think you missunderstood something, the teacher give me only a NT hash and said that it is an IPv4 address, because it can be from 1-255.