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Description
Infinet The InfiNet devices of the InfiLINK 2x2 and , InfiMAN 2x2, InfiLINK Evolution, InfiMAN Evolution families have two modules for configuring RIP: rip and arip. The difference between them is in the interoperability with the OSPF protocol, which is not present in the rip module does not have, thus it is recommended to configure the devices using the arip module. Due to the recommendation, this article will describe the RIP configuration using the arip module.
The RIP configuration is performed only via CLI. A separate command shell with several modes is used to configure the RIP protocol (Figure 1). The transition to each mode is performed using the commands with the same name. A detailed description of the commands description is available in Technical documentationin the Technical documentation.
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An configuration example is given for the InfiLINK 2x2, InfiMAN 2x2 families devices, pay attention to the name of the radio interface on your devices during the scheme implementation. |
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Basic | Basic The basic RIP mode is used to analyze the output of the diagnostic commands output and to switch to the configuration mode. Switching to The switching to the basic mode is performed from the WANFleX command shell using the "arip" command.
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RIP configuration | Configuration The configuration mode allows to manage the RIP service running on the device and proceed to the configuration modes, : router, interfaces , or route-maps. Switching The switching to the RIP configuration mode is performed from the basic mode using the "config" command.
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RIP router configuration | In the router configuration mode, basic RIPF settings are can be made. The mode allows to configure the announced networks, router ID, etc. Switching The switching to the RIP router configuration mode is performed from the configuration mode using the "router" command.
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RIP interface configuration | The RIP interface configuration mode allows to configure the protocol settings related to a specific interface. Switching The switching to the RIP interface configuration mode is performed from the configuration mode using the "interface IFNAME" command.
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Route-maps configuration | RouteThe route-maps configuration mode allows to configure the rules that should be applied to announced the advertised or received RIP routes. Switching The switching to the RIP route-map configuration mode is performed from the configuration mode using the rule creation command "route-map WORD (deny|permit) <1-65535>".
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Each RIP shell modes mode provides help by displaying the full list of supported commands. To display the list, use the "help" command.
The routing table can be displayed by using one of the following commands:
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Изfrom команднойthe оболочкиWANFleX WANFleXcli: BS_1#1> netstat -r Из командной оболочки RIPfrom the RIP basic shell mode: RIP> show route Изfrom the команднойARDA оболочкиshell ARDAmode: ARDA> show route |
Task
Let's take a look at the RIP step by step configuration on Infinet devices of the RIP protocol on the InfiNet devices, using the following scheme (Figure 2):
- the network consists of three wireless devices: BS1, CPE2 and CPE3 which are connected by through wireless links;
- бsubnet subnet 172.16.0.0/29 is assigned to the wireless network;
- each wireless device has a connection to a wired segment: BS1 is connected to the 10.10.10.0/24 network, CPE2 - to the 10.10.20.0/24 network, CPE3 - to the 10.10.30.0/24 network;
- three static routes are configured on the CPE3 wireless device to towards the networks 192.168.6.0/28, 192.168.7.0/28 , and 192.168.8.0/28. The third-party router R1 is used as a gateway;
- to the loopback interface of each wireless device is assigned an an IP address from the 192.168.0.0/24 network is assigned to the loopback interface of each wireless device.
Task: configure the RIP operation protocol on the wireless devices in order to add information about all the networks in the scheme to the routing table of each router. The BS1 device should be used as the default gateway on the CPE2 and CPE3 devices.
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Figure 2 - Network scheme for the RIP configuring exampleconfiguration |
Solution
Perform the The devices will be configured step-by-step configuration in accordance with the task. In addition to the RIP configuration, the static routing routes will be used (see. see Static routing) for connection providing connectivity with LAN-6, LAN-7 , and LAN-8.
To demonstrate more features in the exampleIn order to highlight several available features, different approaches will be used to configure when configuring RIP on the wireless devices.
Pre-configuration
Description | Perform a devices preliminary configuration of the devices, consisting of the following steps:
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BS1 |
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CPE2 |
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CPE3 |
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Description | Configure the RIP protocol in accordance with according to the scheme. Step 1: start the RIP daemon. Step 2: define the interfaces where RIP should be started:
In the CPE2 router 's configuration, the range of networks used in RIP will be set as a single entry: 0.0.0.0/0. This entry includes all networks and enables the RIP support on all router's interfaces; when some device one of the CPE2's interfaces is connected to a new network, this network will be immediately announced via RIP. This approach doesn't require any additional RIP configuration, but decreases the control over the announcements. On the BS1 and CPE3 routers, we will be set only those networks that are associated with the interfaces participating in the RIP's operation. Step 3: make redistribution of redistribute the directly connected networks on the BS1 router and the static routes on the CPE3 router. Step 4: configure passive interfaces. The CPE3 eth0 interface of CPE3 is connected to the outside external router R1, therefore it is necessary to block the transmission of the routing information transmission between them. To ensure this, the CPE3 eth0 interface of CPE3 must be configured as passive. Step 5: announce the default route, specifying BS1 as the gateway. | |||||||
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BS1 |
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CPE2 |
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CPE3 |
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Command output
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analysis
Routing table
Description | The routing tables of the wireless devices , contains entries that each device has information contain entries about each subnet shown in the scheme. This means that the devices have successfully exchanged routing information and added it to the FIB. Note that the devices routing table contains a route routing tables contain also routes to the addresses assigned to the loopback interfaces of the other wireless devices. These interfaces have been added to RIP in various ways:
Also pay attention to the default route on the CPE2 and CPE3 devices. in accordance with According to the configuration, BS1 announces the default route to all the devices that support RIP, indicating itself as a gateway. At the same time, the default route is absent in from the BS1's routing table. The CPE3 router redistributes the static routes, therefore, the BC1 routing tables of BS1 and CPE2 routing tables contain paths to towards the networks 192.168.6.0/24, 192.168.7.0/24 and 192.168.8.0/24. | |||||||
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BS1 |
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