Chapter 7 LAN Setup
P-660N-T1A User’s Guide
97
•
None -
the ZyXEL Device will not send any RIP packets and will ignore any RIP
packets received.
The
Version
field controls the format and the broadcasting method of the RIP
packets that the ZyXEL Device sends (it recognizes both formats when receiving).
RIP-1 is universally supported; but RIP-2 carries more information. RIP-1 is
probably adequate for most networks, unless you have an unusual network
topology.
Both RIP-2B and RIP-2M sends the routing data in RIP-2 format; the difference
being that RIP-2B uses subnet broadcasting while RIP-2M uses multicasting.
7.6.6 Multicast
Traditionally, IP packets are transmitted in one of either two ways - Unicast (1
sender - 1 recipient) or Broadcast (1 sender - everybody on the network).
Multicast delivers IP packets to a group of hosts on the network - not everybody
and not just 1.
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 ZyXEL Device supports IGMP version 1 (
IGMP-v1
), IGMP version 2 (
IGMP-
v2
) and IGMP version 3 (
IGMP-v3
). At start up, the ZyXEL Device queries all
directly connected networks to gather group membership. After that, the ZyXEL
Device periodically updates this information. IP multicasting can be enabled/
disabled on the ZyXEL Device LAN and/or WAN interfaces in the web configurator
(
LAN
;
WAN
). Select
None
to disable IP multicasting on these interfaces.
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Страница 8: ...Safety Warnings P 660N T1A User s Guide 8...
Страница 10: ...Contents Overview P 660N T1A User s Guide 10...
Страница 18: ...Table of Contents P 660N T1A User s Guide 18...
Страница 19: ...19 PART I User s Guide...
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Страница 50: ...Chapter 4 Tutorials P 660N T1A User s Guide 50...
Страница 51: ...51 PART II Technical Reference...
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Страница 84: ...Chapter 6 WAN Setup P 660N T1A User s Guide 84...
Страница 98: ...Chapter 7 LAN Setup P 660N T1A User s Guide 98...
Страница 146: ...Chapter 9 Network Address Translation NAT P 660N T1A User s Guide 146...
Страница 150: ...Chapter 10 Firewall P 660N T1A User s Guide 150...
Страница 160: ...Chapter 12 Static Route P 660N T1A User s Guide 160...
Страница 200: ...Chapter 18 CWMP P 660HN T1A User s Guide 200...
Страница 222: ...Chapter 21 Tools P 660N T1A User s Guide 222...
Страница 232: ...Chapter 23 Troubleshooting P 660N T1A User s Guide 232...
Страница 240: ...Chapter 24 Product Specifications P 660N T1A User s Guide 240...
Страница 278: ...Appendix B IP Addresses and Subnetting P 660N T1A User s Guide 278...
Страница 288: ...Appendix C Pop up Windows JavaScripts and Java Permissions P 660N T1A User s Guide 288...
Страница 320: ...Index P 660N T1A User s Guide 320...
Страница 321: ...Index P 660N T1A User s Guide 321...
Страница 322: ...Index P 660N T1A User s Guide 322...