Saya memiliki printer 3D yang terhubung ke jaringan kelas bisnis. Untuk beberapa alasan saya menemukan bahwa saya dapat melakukan ping kata apa saja dan mendapatkan respons dari alamat ip tertentu (selalu nomor yang sama). Antarmuka printer dihosting melalui browser web. Saya bisa mendapatkannya melalui kabel cross over. Mengatur alamat ip statis tidak melakukan apa-apa. Idealnya saya mencari untuk menggunakan DHCP (printer 3D lainnya tidak memiliki masalah).
Setiap saran akan sangat dihargai. Jangan menyarankan menghubungi produsen karena mereka tidak tahu cukup banyak untuk membantu (dan saya sudah punya). Mengapa saya bisa melakukan ping kata apa saja dan mendapat jawaban?
Memperbarui:
C:\>nslookup cake
Server: resolver1.opendns.com
Address: 208.67.222.222
Non-authoritative answer:
Name: cake.wp.comcast.net
Address: 67.215.65.132
C:\>nslookup
Default Server: resolver1.opendns.com
Address: 208.67.222.222
> set d2
> cake
Server: resolver1.opendns.com
Address: 208.67.222.222
------------
SendRequest(), len 37
HEADER:
opcode = QUERY, id = 2, rcode = NOERROR
header flags: query, want recursion
questions = 1, answers = 0, authority records = 0, additional = 0
QUESTIONS:
cake.wp.comcast.net, type = A, class = IN
------------
------------
Got answer (53 bytes):
HEADER:
opcode = QUERY, id = 2, rcode = NOERROR
header flags: response, want recursion, recursion avail.
questions = 1, answers = 1, authority records = 0, additional = 0
QUESTIONS:
cake.wp.comcast.net, type = A, class = IN
ANSWERS:
-> cake.wp.comcast.net
type = A, class = IN, dlen = 4
internet address = 67.215.65.132
ttl = 0 (0 secs)
------------
Non-authoritative answer:
------------
SendRequest(), len 37
HEADER:
opcode = QUERY, id = 3, rcode = NOERROR
header flags: query, want recursion
questions = 1, answers = 0, authority records = 0, additional = 0
QUESTIONS:
cake.wp.comcast.net, type = AAAA, class = IN
------------
------------
Got answer (37 bytes):
HEADER:
opcode = QUERY, id = 3, rcode = NOERROR
header flags: response, want recursion, recursion avail.
questions = 1, answers = 0, authority records = 0, additional = 0
QUESTIONS:
cake.wp.comcast.net, type = AAAA, class = IN
------------
Name: cake.wp.comcast.net
Address: 67.215.65.132