ARRIS Consumer Care

SBG7400AC2: Changing the Gateway's IP Address

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Question

How do I change the SBG7400AC2 gateway's LAN IP address?

Answer

The SBG7400AC2 also includes configurable options for the Local Area Network (LAN). The router's LAN IP Address and DHCP range can be configured and modified to suit the needs of the network. By default, the LAN IP address of the SBG7400AC2 is 192.168.0.1. This document describes how to change the Gateway's IP Address.

NOTE: If the LAN IP address is modified to be in a different subnet (e.g. 192.168.8.1), the SBG7400AC2 will need to have the DHCP range manually change to use the addresses in that subnet.

Change the Gateway's IP Address

Launch a web browser, such as Internet Explorer, Firefox, or Safari. Enter http://192.168.0.1 into the address box, and press the Enter key. The Login page will appear.

NOTE: A security or private risk alert may appear on the web browser advising users to proceed with caution when accessing the Web Manager. There is no risk in proceeding to the Web Manager. For instructions to by-pass the alert screen, refer to article # 18181 - Alert Message for Web Manager Access.
On the Login page, enter admin in the User Name field.
Enter password or a customized password in the Password field.

NOTE: When using the default password to login, it may be required to set a unique password to proceed to the Web Manager. For assistance with Web Manager Access, refer to article # 18345 – SBG7400AC2: Web Manager Access.
Click the Apply button. The System Basic Setup page will appear.
On the System Basic Setup page, click the LAN Setup link on the top menu. The LAN Settings page will appear.
On the LAN Settings page, enter the desired IP address into the IP Address field for the LAN interface here. In this example, 192.168.8.1 is used.

NOTE: The LAN IP address used must be a private IP address (within one of the following ranges):
- 10.0.x.x - 10.254.x.x
- 172.16.x.x - 172.31.x.x
- 192.168.1.x - 192.168.254.x
Enter the Subnet Mask of the IP Address into the Subnet Mask field.
Determine the best scenario for the Enabled DHCP Server option:
- If it is desired to have the SBG7400AC2 assign IP addresses to the client devices, leave this setting checked.
- If some devices are manually configured with IP addresses, but others are to receive an address from the SBG7400AC2, leave this setting checked.
- If there is another device on the network that will be the DHCP server, uncheck this setting and proceed to step 11.
- If it is desired to manually configure each device with an IP address, uncheck this setting and proceed to step 11.
Enter the first IP address to be used in the DHCP range in the Start Local Address field.
Enter the last IP address to be used in the DHCP range in the End IP Address field.
Click the Apply button. The system pop-up window will appear.
On the system pop-up window, click the OK button. The Gateway will restart and the new IP address will take into effect.
Launch a web browser, such as Internet Explorer, Firefox, or Safari. Enter new address into the address box, and press the Enter key. The Login page will appear. In this example the new address is http://192.168.8.1.