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Reference Manual for the Model DG814 DSL Modem Internet Gateway
Advanced Configuration of the Gateway 7-9
• IP Subnet Mask
This is the LAN Subnet Mask of the gateway. Combined with the IP address, the IP Subnet
Mask allows a device to know which other addresses are local to it, and which must be reached
through a gateway or router.
• RIP Direction
RIP (Router Information Protocol) allows a router to exchange routing information with other
routers. The RIP Direction selection controls how the gateway sends and receives RIP packets.
Both is the default.
— When set to Both or Out Only, the gateway will broadcast its routing table periodically.
— When set to Both or In Only, it will incorporate the RIP information that it receives.
— When set to None, it will not send any RIP packets and will ignore any RIP packets
received.
• RIP Version
This controls the format and the broadcasting method of the RIP packets that the gateway
sends. (It recognizes both formats when receiving.) By default, this is set for RIP-1.
— RIP-1 is universally supported. RIP-1 is probably adequate for most networks, unless you
have an unusual network setup.
— RIP-2 carries more information. RIP-2B uses subnet broadcasting..
Static Routes
Static Routes provide additional routing information to your gateway. Under normal
circumstances, the gateway has adequate routing information after it has been configured for
Internet access, and you do not need to configure additional static routes. You must configure
static routes only for unusual cases such as multiple routers or multiple IP subnets located on your
network.
Note: If you change the LAN IP address of the gateway while connected through the
browser, you will be disconnected. You must then open a new connection to the new IP
address and log in again.