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SonicOS: Configuring a PPPoA Router/Modem to Work with Your SonicWall
08/19/2021 
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Description
SonicOS: Configuring a PPPoA Router/Modem to Work with Your SonicWall
Resolution
You can configure a DSL modem with a PPPoA provider to connect with a SonicWall, enabling Internet access to computers behind its LAN. If the PPPoA modem can be configured in Bridge mode, then the SonicWall will receive a public IP address and double NATTING can be avoided. Follow these steps to setup the proposed scenario:
- Connect the phone cable to the WAN interface of the PPPoA modem.
- Connect the LAN interface of the PPPoA modem to the SonicWall WAN interface.
- Configure the PPPoA modem as follows:
- WAN IP: ISP Assigned public IP (Static or Dynamic)
- LAN IP: 192.168.0.1/24
- Configure the SonicWall as follows:>
- WAN IP: 192.168.0.254/24 (Static or Dynamic if DHCP is configured on PPPoA modem)
- LAN IP: 10.0.0.1/24
- Configure the DNS settings on the SonicWall to those supplied by the provider.
- Computers connected to the LAN of the SonicWall will now have the 10.0.0.0/24 subnet.
- Connect the SonicWall LAN interface to the LAN computers (Switch/HUB).
This information is provided for guidance purposes only and does not represent an officially supported configuration.
ISSUE ID:
SW3724
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