Does the TCP/IP network layer contain only ARP and IP?

A

Alex Serov2016-11-24 21:34:23

Computer networks

Alex Serov, 2016-11-24 21:34:23

Does the TCP/IP network layer only contain ARP and IP?

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5 answer(s)

I

ipc_ngs, 2016-11-24
@gibsonman01

https://en.wikipedia.org/wiki/Internet_layer

R

Rou1997, 2016-11-24
@Rou1997

Network - yes, but in general this stack also includes SCTP (from Cisco), UDP and TCP itself, the most common transport protocol on all operating systems.

V

Vladimir Dubrovin, 2016-11-24
@z3apa3a

+ ICMP, IGMP.

A

Alexey Cheremisin, 2016-11-24
@leahch

Besides IP and ARP, it also includes ICMP, IGMP, IPSec, and dozens of other protocols. The most detailed description is here - book.itep.ru/4/44/ip_441.htm#2

C

CityCat4, 2016-11-25
@CityCat4

If we consider in terms of OSI layers (of which there are seven), then:
- ARP is a link layer, it is below the network. This is the level of operation of the network card driver, PPP, L2TP, MAC (mac-addresses, not yabble) work at this level
- IP is the network level. In addition to IP, ICMP, IGMP, IPSec work at this level
- TCP is the transport layer, it is higher than the network layer. UDP, SCTP work at this level...
Considering that TCP and IP work at the same level is a very common mistake, the abbreviation TCP / IP apparently suggests that "either TCP or IP"