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== OSI-Modell ==
== OSI-Modell ==
{| class="wikitable options col1center sortable"
{| class="wikitable options col1center big"
|-
|-
! Schicht !! Benennung !! Deutsch || Beschreibung
! Layer !! !! Deutsch || Beschreibung
|-
|-
| 7 || [[OSI/7 Application|Application]]‎ || Anwendung || Funktionen für Anwendungen sowie die Dateneingabe und -ausgabe
| class="osicolor7 | 7 || [[OSI/7 Application|Application]]‎ || Anwendung || Funktionen für Anwendungen, Dateneingabe und -ausgabe
|-
|-
| 6 || [[OSI/6 Presentation|Presentation‎]] || Darstellung ||Umwandlung der systemabhängigen Daten in ein unabhängiges Format
| class="osicolor6 | 6 || [[OSI/6 Presentation|Presentation‎]] || Darstellung ||Umwandlung der systemabhängigen Daten in ein unabhängiges Format
|-
|-
| 5 || [[OSI/5 Session|Session‎]] || Sitzung || Steuerung der Verbindungen und des Datenaustauschs
| class="osicolor5 | 5 || [[OSI/5 Session|Session‎]] || Sitzung || Steuerung der Verbindungen und des Datenaustauschs
|-
|-
| 4 || [[OSI/4 Transport‎|Transport]] || Transport || Zuordnung der Datenpakete zu einer Anwendung
| class="osicolor4 | 4 || [[OSI/4 Transport‎|Transport]] || Transport || Zuordnung der Datenpakete zu einer Anwendung
|-
|-
| 3 || [[OSI/3 Network|Network‎]] || Vermittlung || Routing der Datenpakete zum nächsten Knoten
| class="osicolor3 | 3 || [[OSI/3 Network|Network‎]] || Vermittlung || Routing zum nächsten Knoten
|-
|-
| 2 || [[OSI/2 Data Link|Data Link‎]] || Sicherung || Segmentierung der Pakete in Frames und Hinzufügen von Prüfsummen
| class="osicolor2 | 2 || [[OSI/2 Data Link|Data Link‎]] || Sicherung || Segmentierung in Frames, Prüfsummen
|-
|-
| 1 || [[OSI/1 Physical|Physical‎]]|| Bitübertragung || Umwandlung der Bit in ein zum Medium passendes Signal und physikalische Übertragung
| class="osicolor1 | 1 || [[OSI/1 Physical|Physical‎]]|| Bitübertragung || Bit in Signale umwandeln, physikalische Übertragung
|}
|}


=== Router ===
== Übersicht ==
{| class="col1center col2center col3center col4center col5center col6center" style="padding: 0 1em 0 1em;" cellspacing="0" border="0"
{|  
! !! !! Sender || || Empfänger ||
|-
|-
| style="border: 1px solid black;" | 7
| Anwendung || || class="osi osicolor7" | [[OSI/7 Application|7 Application]] || || class="osi osicolor7" | [[OSI/7 Application|7 Application]] ||
| || || ||
| style="border: 1px solid black;" | 7
|-
|-
| style="border: 1px solid black;" | 6
| || || class="osi osicolor6" | [[OSI/6 Presentation|6 Presentation‎]] || || class="osi osicolor6" | [[OSI/6 Presentation|6 Presentation‎]] ||
| || || ||
| style="border: 1px solid black;" | 6
|-
|-
| style="border: 1px solid black;" | 5
| || || class="osi osicolor5" | [[OSI/5 Session|5 Session‎]] || || class="osi osicolor5" | [[OSI/5 Session|5 Session‎]] ||
| || || ||
| style="border: 1px solid black;" | 5
|-
|-
| style="border: 1px solid black;" | 4
| | Transport
| || || ||
| |  
| style="border: 1px solid black;" | 4
| class="osi osicolor4" | [[OSI/4 Transport‎|4 Transport]]
| |
| class="osi osicolor4" | [[OSI/4 Transport‎|4 Transport]]
|  |
|-
|-
| style="border: 1px solid black;" | 3
| || || class="osi osicolor3" | [[OSI/3 Network|3 Network‎]] || || class="osi osicolor3" | [[OSI/3 Network|3 Network‎]] ||
|-
| || || class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]] || || class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]] ||
|-
| || || class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]] || || class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎ ]] ||
|-
| || colspan="5" class="osi osicolor0"  | [[:Kategorie:Netzwerk/Medien| Übertragungsmedien]]
|}
 
== Layer 1 ==
[[Repeater]], [[Hub]]
{|
! !! Sender !! !! !! !! !! Empfänger
|-
|
| class="osi osicolor7" | [[OSI/7 Application|7 Application]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor7" | [[OSI/7 Application|7 Application]]
|-
|
| class="osi osicolor6" | [[OSI/6 Presentation‎|6 Presentation‎]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor6" | [[OSI/6 Presentation‎|6 Presentation‎]]
|-
|
| class="osi osicolor5" | [[OSI/5 Session‎|5 Session‎]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor5" | [[OSI/5 Session‎|5 Session‎]]
|-
|
| class="osi osicolor4" | [[OSI/4 Transport|4 Transport]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor4" | [[OSI/4 Transport|4 Transport]]
|-
|
| class="osi osicolor3" | [[OSI/3 Network|3 Network‎]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor3" | [[OSI/3 Network|3 Network‎]] ||
|-
|
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]]
|
|-
|
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
| class="line" | < - - >
| colspan="2" class="osi osicolor1"  | [[OSI/1 Physical|1 Physical‎]]
| class="line" | < - - >
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
|
|-
| colspan="4" class="osicolor0"  | [[:Kategorie:Netzwerk/Medien| Übertragungsmedien]]
| colspan="4" class="osicolor0"  | [[:Kategorie:Netzwerk/Medien| Übertragungsmedien]]
|}
 
== Layer 2 ==
[[Switch]], [[Bridge]]
{| class="" style=""
! !! Sender !! !! !! !! !! Empfänger
|-
|
| class="osi osicolor7" | [[OSI/7 Application|7 Application]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor7" | [[OSI/7 Application|7 Application]]
|-
|
| class="osi osicolor6" | [[OSI/6 Presentation‎|6 Presentation‎]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor6" | [[OSI/6 Presentation‎|6 Presentation‎]]
|-
|
| class="osi osicolor5" | [[OSI/5 Session‎|5 Session‎]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor5" | [[OSI/5 Session‎|5 Session‎]]
|-
|
| class="osi osicolor4" | [[OSI/4 Transport|4 Transport]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor4" | [[OSI/4 Transport|4 Transport]]
|-
|
| class="osi osicolor3" | [[OSI/3 Network|3 Network‎]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor3" | [[OSI/3 Network|3 Network‎]] ||
|-
|
| class="osi osicolor2" | [[OSI/2 Data Link‎|2 Data Link‎]]
| class="line" | < - - >
| colspan="2" class="osi osicolor2"  | [[OSI/2 Data Link‎|2 Data Link‎]]
| class="line" | < - - >
| class="osi osicolor2" | [[OSI/2 Data Link‎|2 Data Link‎]] ||
|-
|
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
| class="line" | < - - >
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
| class="line" | < - - >
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
|
|-
| colspan="4" class="osi osicolor0"  | [[:Kategorie:Netzwerk/Medien| Übertragungsmedien]]
| colspan="4" class="osi osicolor0"  | [[:Kategorie:Netzwerk/Medien| Übertragungsmedien]]
|}
 
== Layer 3 ==
[[Router]]
{| class="" style=""
! !! Sender !! !! !! !! !! Empfänger
|-
| || class="osi osicolor7" | [[OSI/7 Application|7 Application]] || || || || || class="osi osicolor7" | [[OSI/7 Application|7 Application]] ||
|-
| || class="osi osicolor6" | [[OSI/6 Presentation|6 Presentation‎]] || || || || || class="osi osicolor6" | [[OSI/6 Presentation|6 Presentation‎]] ||
|-
| || class="osi osicolor5" | [[OSI/5 Session|5 Session‎]] || || || || || class="osi osicolor5" | [[OSI/5 Session|5 Session‎]] ||
|-
| || class="osi osicolor4" | [[OSI/4 Transport‎|4 Transport]] || || || || || class="osi osicolor4" | [[OSI/4 Transport‎|4 Transport]] ||
|-
| || class="osi osicolor3" | [[OSI/3 Network|3 Network‎]] ||
| colspan="2" class="osi osicolor3" style="text-align:center" | [[OSI/3 Network|3 Network]] ||
| class="osi osicolor3" | [[OSI/3 Network|3 Network‎]] ||
|-
| || class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]] ||
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]]
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]] ||
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]] ||
|-
| || class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]] ||
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]] ||
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]] ||
|-
| colspan="4" class="osi osicolor0"  | [[:Kategorie:Netzwerk/Medien| Übertragungsmedien]]
| colspan="4" class="osi osicolor0"  | [[:Kategorie:Netzwerk/Medien| Übertragungsmedien]]
|}
 
=== Layer 3 ===
{| class="" style=""
! !! Sender !! !! !! !! !! Empfänger
|-
|
| class="osi osicolor7" | [[OSI/7 Application|7 Application]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor7" | [[OSI/7 Application|7 Application]]
|-
|
| class="osi osicolor6" | [[OSI/6 Presentation‎|6 Presentation‎]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor6" | [[OSI/6 Presentation‎|6 Presentation‎]]
|-
|
| class="osi osicolor5" | [[OSI/5 Session‎|5 Session‎]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor5" | [[OSI/5 Session‎|5 Session‎]]
|-
|
| class="osi osicolor4" | [[OSI/4 Transport|4 Transport]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor4" | [[OSI/4 Transport|4 Transport]]
|-
|
| class="osi osicolor3" | [[OSI/3 Network|3 Network‎]]
| class="line" | < - - >
| colspan="2" class="osi osicolor3" style="text-align:center" | [[OSI/3 Network|3 Network‎]]
| class="line" | < - - >
| class="osi osicolor3" | [[OSI/3 Network|3 Network‎]] ||
|-
|
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]]
| class="line" | < - - >
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]]
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]]
| class="line" | < - - >
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]]
|
|-
|
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
| class="line" | < - - >
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
| class="line" | < - - >
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
|
|-
| colspan="4" class="osi osicolor0"  | [[:Kategorie:Netzwerk/Medien| Übertragungsmedien]]
| colspan="4" class="osi osicolor0"  | [[:Kategorie:Netzwerk/Medien| Übertragungsmedien]]
|}
 
== Layer 4 ==
[[Firewall]], [[L4-Router]]
{|
! !! Sender !! !! !! !! !! Empfänger
|-
|
| class="osi osicolor7" | [[OSI/7 Application|7 Application]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor7" | [[OSI/7 Application|7 Application]]
|-
|
| class="osi osicolor6" | [[OSI/6 Presentation‎|6 Presentation‎]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor6" | [[OSI/6 Presentation‎|6 Presentation‎]]
|-
|
| class="osi osicolor5" | [[OSI/5 Session‎|5 Session‎]]
| class="line" |< - - -
| class="line" | - - - - - - - - -
| class="line" |- - - - - - - - -
| class="line" | - -  - >
| class="osi osicolor5" | [[OSI/5 Session‎|5 Session‎]]
|-
|
| class="osi osicolor4" | [[OSI/4 Transport|4 Transport]]
| class="line" | < - - >
| colspan="2" class="osi osicolor4" style="text-align:center" | [[OSI/4 Transport|4 Transport]]
| class="line" | < - - >
| class="osi osicolor4" | [[OSI/4 Transport|4 Transport]] ||
|-
|
| class="osi osicolor3" | [[OSI/3 Network|3 Network‎]]
| class="line" | < - - >
| class="osi osicolor3" | [[OSI/3 Network|3 Network‎]]
| class="osi osicolor3" | [[OSI/3 Network|3 Network‎]]
| class="line" | < - - >
| class="osi osicolor3" | [[OSI/3 Network|3 Network‎]] ||
|-
|
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]]
| class="line" | < --  >
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]]
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]]
| class="line" | < - - >
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]]
|
|
| colspan="2" style="border: 1px solid black;" | 3
|-
|
|
| style="border: 1px solid black;" | 3
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
| class="line" | < - - >
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
| class="line" | < - - >
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
|
|-
|-
| style="border: 1px solid black;" | 2
| colspan="4" class="osi osicolor0"  | [[:Kategorie:Netzwerk/Medien| Übertragungsmedien]]
| colspan="4" class="osi osicolor0"  | [[:Kategorie:Netzwerk/Medien| Übertragungsmedien]]
|}
 
== Layer 7 ==
[[Gateway]], [[Proxy-Server]], [[IPS]]
 
{| class="" style=""
! !! Sender !! !! !! !! !! Empfänger
|-
|
| class="osi osicolor7" | [[OSI/7 Application|7 Application]]
| class="line" | < - - >
| colspan="2"  class="osi osicolor7" style="text-align:center" | [[OSI/7 Application|7 Application]]
| class="line" | < - - >
| class="osi osicolor7" | [[OSI/7 Application|7 Application]]
|-
|
| class="osi osicolor6" | [[OSI/6 Presentation‎|6 Presentation‎]]
| class="line" | < - - >
| class="osi osicolor6" | [[OSI/6 Presentation‎|6 Presentation‎]]
| class="osi osicolor6" | [[OSI/6 Presentation‎|6 Presentation‎]]
| class="line" | < - - >
| class="osi osicolor6" | [[OSI/6 Presentation‎|6 Presentation‎]]
|-
|
| class="osi osicolor5" | [[OSI/5 Session‎|5 Session‎]]
| class="line" | < - - >
| class="osi osicolor5" | [[OSI/5 Session‎|5 Session‎]]
| class="osi osicolor5" | [[OSI/5 Session‎|5 Session‎]]
| class="line" | < - - >
| class="osi osicolor5" | [[OSI/5 Session‎|5 Session‎]]
|-
|
| class="osi osicolor4" | [[OSI/4 Transport|4 Transport]]
| class="line" | < - - >
| class="osi osicolor4" | [[OSI/4 Transport|4 Transport]]
| class="osi osicolor4" | [[OSI/4 Transport|4 Transport]]
| class="line" | < - - >
| class="osi osicolor4" | [[OSI/4 Transport|4 Transport]]
|-
|
| class="osi osicolor3" | [[OSI/3 Network|3 Network‎]]
| class="line" | < - - >
| class="osi osicolor3" | [[OSI/3 Network|3 Network‎]]
| class="osi osicolor3" | [[OSI/3 Network|3 Network‎]]
| class="line" | < - - >
| class="osi osicolor3" | [[OSI/3 Network|3 Network‎]] ||
|-
|
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]]
| class="line" | < - - >
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]]
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]]
| class="line" | < - - >
| class="osi osicolor2" | [[OSI/2 Data Link|2 Data Link‎]]
|
|
| style="border: 1px solid black;" | 2
|-
| style="border: 1px solid black;" | 2
|
|
| style="border: 1px solid black;" | 2
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
| class="line" | < - - >
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
| class="line" | < - - >
| class="osi osicolor1" | [[OSI/1 Physical|1 Physical‎]]
|
|-
|-
| style="border: 1px solid black;" | 1
| colspan="4" class="osi osicolor0" | [[:Kategorie:Netzwerk/Medien| Übertragungsmedien]]
| style="border-bottom: 3px solid black;" |
| colspan="4" class="osi osicolor0" | [[:Kategorie:Netzwerk/Medien| Übertragungsmedien]]
| style="border: 1px solid black;" | 1
| style="border: 1px solid black;" | 1
| style="border-bottom: 3px solid black;" |
| style="border: 1px solid black;" | 1
|}
|}
[[Kategorie:OSI]]

Aktuelle Version vom 4. Dezember 2024, 11:34 Uhr

OSI-Modell

Layer Deutsch Beschreibung
7 Application Anwendung Funktionen für Anwendungen, Dateneingabe und -ausgabe
6 Presentation‎ Darstellung Umwandlung der systemabhängigen Daten in ein unabhängiges Format
5 Session‎ Sitzung Steuerung der Verbindungen und des Datenaustauschs
4 Transport Transport Zuordnung der Datenpakete zu einer Anwendung
3 Network‎ Vermittlung Routing zum nächsten Knoten
2 Data Link‎ Sicherung Segmentierung in Frames, Prüfsummen
1 Physical‎ Bitübertragung Bit in Signale umwandeln, physikalische Übertragung

Übersicht

Sender Empfänger
Anwendung 7 Application 7 Application
6 Presentation‎ 6 Presentation‎
5 Session‎ 5 Session‎
Transport 4 Transport 4 Transport
3 Network‎ 3 Network‎
2 Data Link‎ 2 Data Link‎
1 Physical‎ 1 Physical‎
Übertragungsmedien

Layer 1

Repeater, Hub

Sender Empfänger
7 Application < - - - - - - - - - - - - - - - - - - - - - - - - > 7 Application
6 Presentation‎ < - - - - - - - - - - - - - - - - - - - - - - - - > 6 Presentation‎
5 Session‎ < - - - - - - - - - - - - - - - - - - - - - - - - > 5 Session‎
4 Transport < - - - - - - - - - - - - - - - - - - - - - - - - > 4 Transport
3 Network‎ < - - - - - - - - - - - - - - - - - - - - - - - - > 3 Network‎
2 Data Link‎ < - - - - - - - - - - - - - - - - - - - - - - - - > 2 Data Link‎
1 Physical‎ < - - > 1 Physical‎ < - - > 1 Physical‎
Übertragungsmedien Übertragungsmedien

Layer 2

Switch, Bridge

Sender Empfänger
7 Application < - - - - - - - - - - - - - - - - - - - - - - - - > 7 Application
6 Presentation‎ < - - - - - - - - - - - - - - - - - - - - - - - - > 6 Presentation‎
5 Session‎ < - - - - - - - - - - - - - - - - - - - - - - - - > 5 Session‎
4 Transport < - - - - - - - - - - - - - - - - - - - - - - - - > 4 Transport
3 Network‎ < - - - - - - - - - - - - - - - - - - - - - - - - > 3 Network‎
2 Data Link‎ < - - > 2 Data Link‎ < - - > 2 Data Link‎
1 Physical‎ < - - > 1 Physical‎ 1 Physical‎ < - - > 1 Physical‎
Übertragungsmedien Übertragungsmedien

Layer 3

Router

Sender Empfänger
7 Application 7 Application
6 Presentation‎ 6 Presentation‎
5 Session‎ 5 Session‎
4 Transport 4 Transport
3 Network‎ 3 Network 3 Network‎
2 Data Link‎ 2 Data Link‎ 2 Data Link‎ 2 Data Link‎
1 Physical‎ 1 Physical‎ 1 Physical‎ 1 Physical‎
Übertragungsmedien Übertragungsmedien

Layer 3

Sender Empfänger
7 Application < - - - - - - - - - - - - - - - - - - - - - - - - > 7 Application
6 Presentation‎ < - - - - - - - - - - - - - - - - - - - - - - - - > 6 Presentation‎
5 Session‎ < - - - - - - - - - - - - - - - - - - - - - - - - > 5 Session‎
4 Transport < - - - - - - - - - - - - - - - - - - - - - - - - > 4 Transport
3 Network‎ < - - > 3 Network‎ < - - > 3 Network‎
2 Data Link‎ < - - > 2 Data Link‎ 2 Data Link‎ < - - > 2 Data Link‎
1 Physical‎ < - - > 1 Physical‎ 1 Physical‎ < - - > 1 Physical‎
Übertragungsmedien Übertragungsmedien

Layer 4

Firewall, L4-Router

Sender Empfänger
7 Application < - - - - - - - - - - - - - - - - - - - - - - - - > 7 Application
6 Presentation‎ < - - - - - - - - - - - - - - - - - - - - - - - - > 6 Presentation‎
5 Session‎ < - - - - - - - - - - - - - - - - - - - - - - - - > 5 Session‎
4 Transport < - - > 4 Transport < - - > 4 Transport
3 Network‎ < - - > 3 Network‎ 3 Network‎ < - - > 3 Network‎
2 Data Link‎ < -- > 2 Data Link‎ 2 Data Link‎ < - - > 2 Data Link‎
1 Physical‎ < - - > 1 Physical‎ 1 Physical‎ < - - > 1 Physical‎
Übertragungsmedien Übertragungsmedien

Layer 7

Gateway, Proxy-Server, IPS

Sender Empfänger
7 Application < - - > 7 Application < - - > 7 Application
6 Presentation‎ < - - > 6 Presentation‎ 6 Presentation‎ < - - > 6 Presentation‎
5 Session‎ < - - > 5 Session‎ 5 Session‎ < - - > 5 Session‎
4 Transport < - - > 4 Transport 4 Transport < - - > 4 Transport
3 Network‎ < - - > 3 Network‎ 3 Network‎ < - - > 3 Network‎
2 Data Link‎ < - - > 2 Data Link‎ 2 Data Link‎ < - - > 2 Data Link‎
1 Physical‎ < - - > 1 Physical‎ 1 Physical‎ < - - > 1 Physical‎
Übertragungsmedien Übertragungsmedien