Chapter 6 The LAN Configuration Screens
OX253P User
’
s Guide
63
6.6.5 RIP Setup
RIP (Routing Information Protocol) allows a router to exchange routing
information with other routers. The
RIP Direction
field controls the sending and
receiving of RIP packets. When set to:
•
Both -
the OX253P will broadcast its routing table periodically and incorporate
the RIP information that it receives.
•
In Only -
the OX253P will not send any RIP packets but will accept all RIP
packets received.
•
Out Only -
the OX253P will send out RIP packets but will not accept any RIP
packets received.
•
None -
the OX253P 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 OX253P 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.
6.6.6 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. 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 OX253P supports both IGMP version 1 (
IGMP-v1
) and IGMP version 2
(
IGMP-v2
). At start up, the OX253P queries all directly connected networks to
gather group membership. After that, the OX253P periodically updates this
Содержание OX253P
Страница 9: ...Contents Overview OX253P User s Guide 10 ...
Страница 16: ...17 PART I User s Guide ...
Страница 17: ...18 ...
Страница 21: ...Chapter 1 Getting Started OX253P User s Guide 22 ...
Страница 27: ...Chapter 2 Introducing the Web Configurator OX253P User s Guide 28 ...
Страница 44: ...45 PART II Technical Reference ...
Страница 45: ...46 ...
Страница 85: ...Chapter 8 The NAT Configuration Screens OX253P User s Guide 86 ...
Страница 117: ...Chapter 10 The Certificates Screens OX253P User s Guide 118 ...
Страница 127: ...Chapter 11 The Firewall Screens OX253P User s Guide 128 ...
Страница 171: ...Chapter 16 The Status Screen OX253P User s Guide 172 ...
Страница 179: ...Chapter 17 Troubleshooting OX253P User s Guide 180 ...
Страница 183: ...Chapter 18 Product Specifications OX253P User s Guide 184 ...
Страница 215: ...Appendix B Setting Up Your Computer s IP Address OX253P User s Guide 216 ...
Страница 227: ...Appendix C Pop up Windows JavaScripts and Java Permissions OX253P User s Guide 228 ...
Страница 278: ...Index OX253P User s Guide 279 ...
Страница 279: ...Index OX253P User s Guide 280 ...