Table of Contents

1. Scope of the work

                       To disable router mode and enable brigdemode in BPIR4 Router. It means, by default device will be in router mode. Once changed to bridge mode, Private WIFI will stop its broadcasting,  Ethernet Client should get public IP address (in erouter series)  and Wireless client will lose its connection to private WIFI.

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• RDK-B Operators
• RDK-B SoC Vendors
• RDK-B OEM's
• RDK-B Application Vendors
• RDK-B System Integrators 

3.  High High level Code Flow Design

3.1. After boot-up

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1

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During boot-up

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• brlan0 will lose IP address
• A new bridge is created lan0(interface link llan0) which will have 10.0.0.1 ip address
• Private WiFi should stops broadcasting
• Ethernet (lan) clients should get Public IP address(i,e in erouter ip series)
• Verify whether the admin UI page is accessible by using 10.0.0.1 ip in ethernet client device 
• Changing from bridgemode to router mode and verify basic functionalities are working fine like Private WiFi should be broadcasted, able to get ip & internet access for wifi and lan clients and admin UI also accessible in connected clients. 

8.

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BPI  Test Results

8.1. Router → Bridge-Static 

1. Changing the LanMode from router to bridge-static mode

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           2 2. A new bridge is created lan0net0(interface link llan0lnet0) which will have 10.0.0.1 ip address

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         3. Private WiFi should stops broadcasting

          Image Removed         4 3.Ethernet (lan) clients should get Public IP address(i,e in erouter ip series)

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        5. Verify whether the admin UI page is accessible by using 10.0.0.1 ip in ethernet client device 

           Image Removed        6 4. brlan0 shouldn't have  IP address

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8.2. Bridge-Static → Router

1.  Changing the LanMode from bridge-static to Router Mode.

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       2. lan0 net0 and llan0 lnet0 interfaces should be deleted

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        3.Private WiFi Should be broadcasted

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        4. WiFi and Lan connected clients should get IP address and internet access

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        5.Admin UI should be accessible via connected clients.

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        6.brlan0 should have IP address

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Tested Image details,

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9. References

9.1. Ticket details

Image RemovedREFPLTB-2901 - Bridge-Mode functionality is not working properly after manual reboot Resolved

Image RemovedREFPLTB-2843 - RPI4 Kirkstone sanity in Bridge Mode - Failing Resolved

Image RemovedREFPLTB-2943

9.2. Code review links

https://code.rdkcentral.com/r/q/topic:%22RPI_BRIDGEMODE%22/c/rdkb/components/opensource/ccsp/Utopia/+/111599

https://github.com/rdkcentral/meta-cmf-bananapi/pull/68