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6.2 How to configure RIP
Routing Information Protocol (RIP) is used for advertising routes to other routers. Thus all the routes in the router's routing table will be
advertised to other nearby routers. For example, the route for the router's Ethernet subnet could be advertised to a router on the PPP
interface side so that a router on this network will know how to route to a device on the router's Ethernet subnet. You will have to add the
routes appropriately in the Static Routes section – see Adding Static Routes.
NOTE – it is possible that some routers will ignore RIP.
To enable RIP click on the "Internet Settings" menu followed by "Routing" and then the "RIP" menu item on the right.
Click "Enable" on the RIP Page
Select RIP version
Click "Save RIP"
6.3 How to configure VRRP
Virtual Router Redundancy Protocol (VRRP) is a non-proprietary redundancy protocol designed to increase the availability of the
default gateway servicing hosts on the same subnet. This increased reliability is achieved by advertising a "virtual router" (an abstract
representation of master and backup routers acting as a group) as a default gateway to the host(s) instead of one physical router. Two or
more physical routers are then configured to stand for the virtual router, with only one doing the actual routing at any given time.
If the current physical router that is routing the data on behalf of the virtual router fails, an arrangement is made for another physical router
to automatically replace it. The physical router that is currently forwarding data on behalf of the virtual router is called the master router.
Master routers have a priority of 255 and backup router(s) can have priority between 1-254.
A virtual router must use 00-00-5E-00-01-XX as its MAC address. The last byte of the address (XX) is the Virtual Router Identifier (VRID),
which is different for each virtual router in the network. This address is used by only one physical router at a time, and is the only way that
other physical routers can identify the master router within a virtual router.
To enable VRRP click on the "Internet Settings" menu followed by "Routing" and then the "VRRP" menu item on the right.
Click "Enable" to activate VRRP
Enter a Virtual Device ID – this is the VRRP ID which is different for each virtual router on the network.
Enter a Router Priority – a higher value is a higher priority.
Enter the Virtual IP address – this is the VRRP IP address that both virtual routers share.
Click "SAVE VRRP"
NOTE: Configuring VRRP changes the MAC address of the Ethernet port and therefore if you want to resume with the web configuration you must use the new IP address (VRRP
IP) or on a command prompt type: arp –d <ip address> (i.e arp –d 192.168.1.1) to clear the arp cache.(old MAC address).
NTC-5000 Series User Guide
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