Network layer TCP/IP contains only ARP and IP?

Network layer TCP/IP contains only ARP and IP?
July 2nd 19 at 14:17
6 answers
July 2nd 19 at 14:19
Solution
July 2nd 19 at 14:21
Network - Yes, but in this stack also includes SCTP (Cisco), UDP and TCP in fact, the most common transport Protocol for all OS.
And where does Cisco? SCTP in the IETF was developed. - sister58 commented on July 2nd 19 at 14:24
Cisco is one of its main implementations. - mazie.Towne commented on July 2nd 19 at 14:27
July 2nd 19 at 14:23
+ ICMP, IGMP.
July 2nd 19 at 14:25
Even other than IP or ARP, is part of ICMP, IGMP, IPSec, and several dozen other protocols. The detailed description here - book.itep.ru/4/44/ip_441.htm#2
July 2nd 19 at 14:27
When viewed in terms of the levels of OSI (who is seven), then:
- ARP is a channel level, it is below network. This level of performance the drivers of the network card to work, PPP, L2TP, MAC (mac-addresses, not abbl)
- IP is a network level. In addition to IP, on the same level as ICMP, IGMP, IPSec
- TCP is the transport level, it is above the network. On this level there are only UDP, SCTP...

Assume that TCP and IP work on one level - a very common mistake, reducing TCP/IP apparently suggests that "either the TCP or IP"
July 2nd 19 at 14:29
Wiki says
ICMP and IGMP are located above IP, and needs to get to the next traffic level, but functionally are network layer protocols, and therefore cannot be fit into the OSI model.

The network IP Protocol may contain code that indicates what Protocol the next level you need to use to extract data from a package. This number is the unique IP Protocol number. ICMP and IGMP are numbered, respectively, 1 and 2.

This level includes: DVMRP, ICMP, IGMP MARS PIM, RIP, RIP2, RSVP

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