To edit a prefix list, complete the following:
- Log in to the Cloud Services Portal.
- Click Manage > Routing > Prefix List.
- On the Prefix Lists page, choose the prefix list you want to modify and click Edit.
- In the Edit <Prefix List> dialog, complete the following:
- State: Use the toggle switch to enable or disable the prefix list.
- Name: Displays the name of the prefix list. You cannot modify this field.
- Description: Edit the description of the prefix list.
- Click Add in the RULES section and complete the following:
- ACTION: Choose the action you want to apply to this IPv4 prefix list. You can either allow or deny traffic to the route that matches the prefix list.
- PREFIX: Enter the IPv4 prefix. For example, if you want to permit or deny traffic to 10.0.0.0/8, enter 10.0.0.0/8 here.
- PREFIX LENGTH GE: Specifies the prefix length that is greater than or equal to the subnet value. This is the lowest value of the range of the prefix length.
- IPV4 PREFIX LENGTH LE: Specifies the prefix length that is less than or equal to the subnet value. This is the highest value of the range of the prefix length.
- You can also delete a prefix list by selecting the check box of the prefix list and clicking Remove.
- State: Use the toggle switch to enable or disable the prefix list.
- Click Save &Close to save the configuration.