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Chapter 7 LAN Setup
P-660HN-F1A User’s Guide
141
IGMP (Internet Group Multicast Protocol) is a network-layer protocol used to
establish membership in a Multicast group - it is not used to carry user data. IGMP
version 2 (RFC 2236) is an improvement over version 1 (RFC 1112) but IGMP
version 1 is still in wide use. IGMP version 3 supports source filtering, reporting or
ignoring traffic from specific source address to a particular host on the network. If
you would like to read more detailed information about interoperability between
IGMP version 2 and version 1, please see sections 4 and 5 of RFC 2236. The class
D IP address is used to identify host groups and can be in the range 224.0.0.0 to
239.255.255.255. The address 224.0.0.0 is not assigned to any group and is used
by IP multicast computers. The address 224.0.0.1 is used for query messages and
is assigned to the permanent group of all IP hosts (including gateways). All hosts
must join the 224.0.0.1 group in order to participate in IGMP. The address
224.0.0.2 is assigned to the multicast routers group.
The P-660HN-F1A supports IGMP version 1 (IGMP-v1), IGMP version 2 (IGMP-
v2) and IGMP version 3 (IGMP-v3). At start up, the P-660HN-F1A queries all
directly connected networks to gather group membership. After that, the P-
660HN-F1A periodically updates this information. IP multicasting can be enabled/
disabled on the P-660HN-F1A LAN and/or WAN interfaces in the web configurator
(LAN; WAN). Select None to disable IP multicasting on these interfaces.
Summary of Contents for P-660HN-F1A
Page 2: ......
Page 10: ...Contents Overview P 660HN F1A User s Guide 10...
Page 20: ...Table of Contents P 660HN F1A User s Guide 20...
Page 21: ...21 PART I User s Guide...
Page 22: ...22...
Page 36: ...Chapter 2 Introducing the Web Configurator P 660HN F1A User s Guide 36...
Page 44: ...Chapter 3 Status Screens P 660HN F1A User s Guide 44...
Page 84: ...Chapter 4 Tutorials P 660HN F1A User s Guide 84 Physical Port 1 3 exclude port 4 3 Click Apply...
Page 88: ...Chapter 4 Tutorials P 660HN F1A User s Guide 88...
Page 103: ...103 PART II Technical Reference...
Page 104: ...104...
Page 142: ...Chapter 7 LAN Setup P 660HN F1A User s Guide 142...
Page 188: ...Chapter 9 Network Address Translation NAT P 660HN F1A User s Guide 188...
Page 210: ...Chapter 10 Firewalls P 660HN F1A User s Guide 210...
Page 236: ...Chapter 13 Certificates P 660HN F1A User s Guide 236...
Page 240: ...Chapter 14 Static Route P 660HN F1A User s Guide 240...
Page 276: ...Chapter 17 Dynamic DNS Setup P 660HN F1A User s Guide 276...
Page 288: ...Chapter 18 Remote Management P 660HN F1A User s Guide 288...
Page 344: ...Chapter 24 Troubleshooting P 660HN F1A User s Guide 344...
Page 376: ...Appendix A Setting up Your Computer s IP Address P 660HN F1A User s Guide 376...
Page 386: ...Appendix B Pop up Windows JavaScripts and Java Permissions P 660HN F1A User s Guide 386...
Page 396: ...Appendix C IP Addresses and Subnetting P 660HN F1A User s Guide 396...
Page 420: ...Appendix F Legal Information P 660HN F1A User s Guide 420...
Page 430: ...Index P 660HN F1A User s Guide 430...