IP Multicast - Revision history

Rael: /* Limited (administratively) scoped addresses */

2010-09-13T11:00:04Z

‎Limited (administratively) scoped addresses

2010-05-09T11:37:33Z

‎IGMP Snooping

2010-05-09T11:34:49Z

‎IP multicast Addresses

2010-05-09T11:34:34Z

‎IP multicast Addresses

2010-05-05T09:24:32Z

‎GLOP Example

2010-05-05T09:22:10Z

‎GLOP Example

2010-05-05T09:20:51Z

‎Locally scoped (reserved link local) addresses

2010-05-05T09:18:49Z

2010-01-17T08:59:29Z

2009-11-22T07:11:44Z

‎IP Multicast MAC address mapping on Ethernet

@@ Line 105: / Line 105: @@
 ==== Organizational Local Scope ====
 *239.192.0.0 to 239.251.255.255
 == Layer 2 Multicast addressing ==

@@ Line 258: / Line 258: @@
 Example Cisco IOS
-<source lang="text">
+<source lang="cli">
-Switch2#show ip igmp snooping vlan 1
+Switch2#<input>show ip igmp snooping vlan 1</input>
 Global IGMP Snooping configuration:
 -----------------------------------
@@ Line 278: / Line 278: @@
 CGMP interoperability mode          : IGMP_ONLY
 </source>
 == CGMP ==
 *Cisco Group Message Protocol

@@ Line 20: / Line 20: @@
 *Used by financial applications and networks. Other uses include resource discovery, data collection, auctions, and polling.
 == IP multicast Addresses ==
-IP Multicast addresses [[IP Classes| IP Class D]]ranging from from 224.0.0.0 to 239.255.255.255 are divided into three multicast address groups.
+IP Multicast addresses [[IP Classes| IP Class D]] ranging from from 224.0.0.0 to 239.255.255.255 are divided into three multicast address groups.
 {|border=1 ;style="margin: 0 auto; text-align: center;cellpadding="5" cellspacing="0"
 |+ IPv4 Multicast Address groups

@@ Line 20: / Line 20: @@
 *Used by financial applications and networks. Other uses include resource discovery, data collection, auctions, and polling.
 == IP multicast Addresses ==
-IP Multicast addresses ranging from from 224.0.0.0 to 239.255.255.255 are divided into three multicast address groups.
+IP Multicast addresses [[IP Classes| IP Class D]]ranging from from 224.0.0.0 to 239.255.255.255 are divided into three multicast address groups.
 {|border=1 ;style="margin: 0 auto; text-align: center;cellpadding="5" cellspacing="0"
 |+ IPv4 Multicast Address groups

@@ Line 90: / Line 90: @@
 [http://www.tdc.dk tdc] has [[BGP]] AS 3292 - two octet AS number necessary.
-Converting 3292 to binary gives 110011011100 afterwords make it to two binary octets 00001100 11011100 and converting each octet separately to decimal gives 12 and 220, giving [http://www.tdc.dk tdc] the GLOP addresses 233.12.220.x, where x defines locally assigned bits.
+Converting 3292 to binary gives 110011011100 seperate it to two binary octets 00001100 11011100 and converting each octet separately to decimal gives 12 and 220, giving [http://www.tdc.dk tdc] the GLOP addresses 233.12.220.x, where x defines locally assigned bits.
 === Limited (administratively) scoped addresses ===

@@ Line 53: / Line 53: @@
 |224.0.0.6 ||	All [[OSPF]] designated Routers
 |-
-|224.0.0.9 ||	All [[RIPv2]] Routers
+|224.0.0.9 ||	All [[Routing Information Protocol|RIPv2]] Routers
 |-
 |224.0.0.10 ||	All [[EIGRP]] Routers
@@ Line 70: / Line 70: @@
 |-
 |}
 === Globally scoped addresses ===

@@ Line 1: / Line 1: @@
-{{TOCright}}
 Se også [[IP Multicast Design]]
 == Architecture ==

@@ Line 249: / Line 249: @@
 |}
 ==IGMP Snooping ==
 IGMP snooping allows a switch to identify end systems that request multicast traffic and

@@ Line 113: / Line 113: @@
 *Ethernet MAC Addresses are 48 bits wide.
 Because the IP address are shorter than the MAC address a direct conversion is not possible.
-[[Image:Multicast_to_Macaddress.png|thumb|500px|none|Conversion from multicast IPv4 to MAC Address]]
+{|
 How does a router or a switch relate a multicast IP address with a MAC address? Normally, network interface cards (NICs) on a LAN segment only receive packets destined for their burned-in MAC address. However, there is no Address Resolution Protocol (ARP) equivalent for multicast address mapping.