From bcfb2b806b9739f508f9ad98a86d667e07a19faf Mon Sep 17 00:00:00 2001 From: Nick Leeman Date: Sat, 6 Nov 2021 20:27:12 +0100 Subject: [PATCH] Vault sync: 2021-11-06 20:27:12 --- .obsidian/workspace | 10 +++++----- School/Analyse/DHCP.md | 14 ++++++++++++++ School/Analyse/ICMP.md | 9 +++++++++ School/Analyse/IPV4.md | 19 +------------------ 4 files changed, 29 insertions(+), 23 deletions(-) create mode 100644 School/Analyse/DHCP.md create mode 100644 School/Analyse/ICMP.md diff --git a/.obsidian/workspace b/.obsidian/workspace index 3da5e70..f1f226e 100644 --- a/.obsidian/workspace +++ b/.obsidian/workspace @@ -9,7 +9,7 @@ "state": { "type": "markdown", "state": { - "file": "School/Analyse/IPV4.md", + "file": "School/Analyse/ICMP.md", "mode": "source" } } @@ -68,7 +68,7 @@ "state": { "type": "backlink", "state": { - "file": "School/Analyse/IPV4.md", + "file": "School/Analyse/ICMP.md", "collapseAll": false, "extraContext": false, "sortOrder": "alphabetical", @@ -87,6 +87,8 @@ }, "active": "bc6e8ad9aa0f44c3", "lastOpenFiles": [ + "School/Analyse/ICMP.md", + "School/Analyse/DHCP.md", "School/Analyse/IPV4.md", "School/Analyse/Layers/3. Network Layer.md", "School/Analyse/Comminucation Mediums.md", @@ -94,8 +96,6 @@ "School/Analyse/ARP Protocol.md", "packet-enscapsulation-2.png", "packet-encapsulation.png", - "School/Analyse/Network Software.md", - "School/Analyse/Computer Networks.md", - "School/Analyse/Network Hardware.md" + "School/Analyse/Network Software.md" ] } \ No newline at end of file diff --git a/School/Analyse/DHCP.md b/School/Analyse/DHCP.md new file mode 100644 index 0000000..8563648 --- /dev/null +++ b/School/Analyse/DHCP.md @@ -0,0 +1,14 @@ +# Dynamic Host Control Protocol (DHCP) +Address allocation can happen trough 2 ways. + +Fixed allocation: + - Wasteful because if a hosts is not active the IP Address is still allocated. + +Dynamic allocation: +- A DHCP server manages the allocation of IP Addresses and leases them for a certain amount of time. + +Dynamic allocation works like this: +1. A host broadcasts a request for an IP Address. +2. A DHCP server replies with a offer for an IP Address. +3. The host replies accepting the offer. +4. Server confirms the allocation of the IP Address. \ No newline at end of file diff --git a/School/Analyse/ICMP.md b/School/Analyse/ICMP.md new file mode 100644 index 0000000..62a7b4c --- /dev/null +++ b/School/Analyse/ICMP.md @@ -0,0 +1,9 @@ +# ICMP +Messages are not guaranteed to be delivered without error. Problems with sending and receiving connections happens all the time. + +In case of errors, the sender needs: +1. To be informed about the problem. +2. Make corrections in the message. +3. Retry sending the message. + +ICMP Protocol is responsible for sendn \ No newline at end of file diff --git a/School/Analyse/IPV4.md b/School/Analyse/IPV4.md index 55ae056..1905c5b 100644 --- a/School/Analyse/IPV4.md +++ b/School/Analyse/IPV4.md @@ -35,21 +35,4 @@ Therefore the receiver should know which part of the message each fragment belon Ecapsulating a packet in a frame requires: - Sender MAC Address (can be found out) -- Receiver MAC Address (Should be found out - -## Dynamic Host Control Protocol (DHCP) -Address allocation can happen trough 2 ways. - -Fixed allocation: - - Wasteful because if a hosts is not active the IP Address is still allocated. - -Dynamic allocation: -- A DHCP server manages the allocation of IP Addresses and leases them for a certain amount of time. - -Dynamic allocation works like this: -1. A host broadcasts a request for an IP Address. -2. A DHCP server replies with a offer for an IP Address. -3. The host replies accepting the offer. -4. Server confirms the allocation of the IP Address. - - +- Receiver MAC Address (Should be found out \ No newline at end of file