ARRIS 2247-N8-10NA (v9.1.x) User Manual - Manual (Page 102)

Motorola 2247-N8 DSL Wi-Fi Gateway User Guide
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How to - check DNS configuration by resolving a system name (NSLookup):
Open the Diagnostics > Troubleshoot page.
1. Click the Preferred Protocol selection button (IPv4 or IPv6) if it is available. If your 2247-N8 is configured to use IPv6 addressing, you may choose
the the IP version that you want the test with the selection buttons that appear. These buttons will not appear if IPv6 addressing is not enabled on
the 2247-N8.
2. Type an IP address or a fully-qualified domain name (e.g.; www.motorola.com) in the Address field.
3. Click the NSLookup button. the 2247-N8 attempts to use the current DNS Server configuration to resolve the host name to an IP address or an IP
address to a host name. The result is shown in the Progress Window.
How to - detect missing or malfunctioning DSL line filters:
Open the Diagnostics > Troubleshoot page.
Click the Detect Missing Filters button. The 2247-N8 examines the signal at the DSL interface and generates a report on the condition of the line.