Trendnet TW-H6W1IR 사용자 설명서

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TW-H6W1IR ISDN Remote Router 
 
Configuration and Management 
39 
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Multicast Protocol – if this parameter is set to None, the router 
will only use the Internet Group Management Protocol (IGMP), if 
IP Multicasting is enabled above. This effectively limits multicast 
data to the local network. If set to DVMRP (Distance Vector 
Multicast Routing Protocol), the router will also use this protocol to 
share its multicast information with other routers (much like RIP), in 
effect, enabling multicasting on the WAN (ISDN) port. 
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IGMP Version – configures the router to use either IGMP version 
1 or 2. A major difference between the two is that version 2 allows 
the router to communicate multicast information with other routers 
(via the ISDN port), even if the other router isn’t using DVMRP. 
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DHCP Client (LAN) – this feature allows the LAN port to be 
assigned an IP address from a DHCP server other than the one in 
the router. This feature should be enabled only for special 
configurations (such as the presence of a cable modem on the 
LAN) where you wish the router to work with a device on the 
network that must act as a DHCP server. Otherwise, this feature 
should be kept disabled. 
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RIP Spoofing (ISDN) – this feature should only be enabled if you 
have more than one router on your network and this router is 
providing your WAN connection. In this case, if the WAN 
connection is dropped due to inactivity and this feature is enabled, 
RIP packets will be sent to the other routers on the network telling 
them that data can still be sent to the WAN via this router. 
Otherwise, the other routers will learn that the WAN link has been 
disconnected and will no longer forward packets destined for the 
WAN to this router, causing the packets to be dropped before 
Bandwidth on Demand has a chance to reestablish the WAN 
connection.