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Here is an example (based on IPv4) of setting Static Route in Main Router so that user A and B
locating in different subnet can talk to each other via the modem. Assuming the Internet
access has been configured and the modem works properly:
use the Main Router to surf the Internet.
create a private subnet 192.168.10.0 using an internal Router A (192.168.1.2)
create a public subnet 211.100.88.0 via an internal Router B (192.168.1.3).
have set Main Router 192.168.1.1 as the default gateway for the modem A 192.168.1.2.
Before setting Static Route, user A cannot talk to user B for Router A can only forward
recognized packets to its default gateway Main Router.
1.
Go to LAN page and click General Setup, select 1st Subnet as the RIP Protocol Control.
Then click the OK button.
Info
Vigor122 User's Guide
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There are two reasons that we have to apply RIP Protocol Control on
1st Subnet. The first is that the LAN interface can exchange RIP
packets with the neighboring routers via the 1st subnet
(192.168.1.0/24). The second is that those hosts on the internal
private subnets (ex. 192.168.10.0/24) can access the Internet via the
modem, and continuously exchange of IP routing information with
different subnets.
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