Справочник Пользователя для Netopia R5100

The Netopia R5000 Series Router suppor ts multiple IP subnets on the Ethernet inter face. You may want to 
configure multiple IP subnets to ser vice more hosts than are possible with your primar y subnet. It is not 
always possible to obtain a larger subnet from your ISP. For example, if you already have a full Class C 
subnet, your only option is multiple Class C subnets, since it is vir tually impossible to justify a Class A or 
Class B assignment. This assumes that you are not using NAT.

If you are using NAT, you can use the reser ved Class A or Class B subnet.

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Select Default IP Gateway and enter the IP address for a default gateway. This can be the address of any 
major router accessible to the Netopia R5000 Series Router.

A default gateway should be able to successfully route packets when the Netopia R5000 Series Router 
cannot recognize the intended recipient’s IP address. A typical example of a default gateway is the ISP’s 
router.

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Select Primary Domain Name Server and enter the IP address for a domain name ser ver. The domain 
name ser ver matches the alphabetic addresses favored by people (for example, robin.hood.com) to the IP 
addresses actually used by IP routers (for example, 163.7.8.202). 

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If a secondar y DNS ser ver is available, select Secondary Domain Name Server and enter its IP address. 
The secondar y DNS ser ver is used by the Netopia R5000 Series Router when the primar y DNS ser ver is 
inaccessible. Entering a secondar y DNS is useful but not necessar y.

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Select Domain Name and enter your network’s domain name (for example, netopia.com). Netopia strongly 
recommends that you enter a domain name.

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Routing Information Protocol (RIP) is needed if there are IP routers on other segments of your Ethernet 
network that the Netopia R5000 Series Router needs to recognize. If this is the case select Receive RIP 
and select v1, v2, or Both from the pop-up menu. With Receive RIP set to v1, the Netopia R5000 Series 
Router’s Ethernet por t will accept routing information provided by RIP packets from other routers that use 
the same subnet mask. Set to v2, the Netopia R5000 Series Router will accept routing information 
provided by RIP packets from other routers that use different subnet masks. Set to Both, the Router will 
accept information from either RIP v1 or v2 routers.

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If you want the Router to adver tise its routing table to other routers via RIP, select Transmit RIP and select 
v1, v2 (broadcast), or v2 (multicast) from the pop-up menu. With Transmit RIP v1 selected, the Router will 
generate RIP packets only to other RIP v1 routers. With Transmit RIP v2 (broadcast) selected, the Netopia 
R5000 Series Router will generate RIP packets to all other hosts on the network. With Transmit RIP v2 
(multicast) selected, the Router will generate RIP packets only to other routers capable of recognizing RIP 
v2 packets.

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Select Static Routes to manually configure IP routes. See the section 

 below.

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If you select Address Serving Setup you will be taken to the IP Address Ser ving screen (see 

. Since no two hosts can use the same IP address at the same time, make sure that 

the addresses distributed by the Router, and those that are manually configured are not the same. Each 
method of distribution must have its own exclusive range of addresses to draw from.

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Select Exported Services. The Expor ted Ser vices screen appears with three options: Show/Change 
Expor ts, Add Expor t, and Delete Expor t.