blank.gif (43 bytes)

Church Of The
Swimming Elephant

Search:
6.4. Extensions to an Ethernet Local Network Module Connected: An Internet Encyclopedia
6.4. Extensions to an Ethernet Local Network Module

Up: Connected: An Internet Encyclopedia
Up: Requests For Comments
Up: RFC 1112
Up: 6. SENDING MULTICAST IP DATAGRAMS
Prev: 6.3. Extensions to the Local Network Service Interface
Next: 6.5. Extensions to Local Network Modules other than Ethernet

6.4. Extensions to an Ethernet Local Network Module

6.4. Extensions to an Ethernet Local Network Module

The Ethernet directly supports the sending of local multicast packets by allowing multicast addresses in the destination field of Ethernet packets. All that is needed to support the sending of multicast IP datagrams is a procedure for mapping IP host group addresses to Ethernet multicast addresses.

An IP host group address is mapped to an Ethernet multicast address by placing the low-order 23-bits of the IP address into the low-order 23 bits of the Ethernet multicast address 01-00-5E-00-00-00 (hex). Because there are 28 significant bits in an IP host group address, more than one host group address may map to the same Ethernet multicast address.


Next: 6.5. Extensions to Local Network Modules other than Ethernet

Connected: An Internet Encyclopedia
6.4. Extensions to an Ethernet Local Network Module

Cotse.Net

Protect yourself from cyberstalkers, identity thieves, and those who would snoop on you.
Stop spam from invading your inbox without losing the mail you want. We give you more control over your e-mail than any other service.
Block popups, ads, and malicious scripts while you surf the net through our anonymous proxies.
Participate in Usenet, host your web files, easily send anonymous messages, and more, much more.
All private, all encrypted, all secure, all in an easy to use service, and all for only $5.95 a month!

Service Details

 
.
www.cotse.com
Have you gone to church today?
.
All pages ©1999, 2000, 2001, 2002, 2003 Church of the Swimming Elephant unless otherwise stated
Church of the Swimming Elephant©1999, 2000, 2001, 2002, 2003 Cotse.com.
Cotse.com is a wholly owned subsidiary of Packetderm, LLC.

Packetderm, LLC
210 Park Ave #308
Worcester, MA 01609