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030-300381 Rev. A 82 January 2004
UltraLine Home DSL Router (Models 7400, 7401)
User Guide
12.5 Advanced WAN
This section explains the configurable features of your Router that are available if you select Advanced WAN from
the Configuration menu.
12.5.1 ATM Loopbacks
If you select ATM Loopbacks from the Configuration menu, the following settings will be displayed.
NOTE: When the Enable ATM 0/21 box is checked, this feature is enabled. If the box does not display a check
mark, this feature is disabled. If you change the setting in this screen, you must click on save. Westell does not
recommend that you change this setting.
Enable ATM 0/21 Loopback: Factory Default = ENABLED
This option enables the 0/21 loopback , which is used by your ISP.