How to configure a CBRAS connection on your modem

BRAS (or B-RAS) stands for "broadband remote access server." CBRAS is a specialized CenturyLink server that allows multiple sources of internet traffic (cable, DSL or broadband wireless) to converge in a single network, routing traffic to and from remote access devices. 

 

Caution! The CBRAS configuration will typically only be used by some Static IP customers. We recommend that you do not change the settings below unless advised to do so by a technician. 

5. Select "WAN Settings" in the left sidebar menu.

CBRAS Step 5

6. Select "Auto Select" from the drop-down for the ISP Protocol, then "Apply."

CBRAS Step 6

7. Select "LAN Subnets" in the next section of the side menu.

CBRAS Step 7

8. Enter the name for the LAN subnet you want to create.  Note: The LAN subnet name cannot contain spaces.

CBRAS Step 8

9. Select the interface(s) you want to associate with the subnet you are adding. Most users will want to select Ethernet 1, Ethernet 2, Ethernet 3 and Ethernet 4.

CBRAS Step 9

10. Select "Enable" next to both "IPv4 Addressing State" and "Modem IPv4 Admin Access."

CBRAS Step 10

11. Enter the Network Address, Subnet Mask and Gateway Address that were provided to you when you leased your IP address.

Zyxel users: If you have a Zyxel modem, it may incorrectly fill in the gateway address. Click in the Gateway Address field, and enter the address provided when you leased your Static IP address. If you need help locating this information, contact us.

CBRAS Step 11

12. Select "Apply" to save your changes.

CBRAS Step 12

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