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The NAT Direct Media Group is a collection of public signaling IP addresses for NAT devices supporting Direct Media (DM). A NAT Direct Media Group name can be maximum of 32 characters; however, “0.0.0.0” (IPv4) and “::0” (IPv6) are not allowed.
To allow Direct Media between NAT devices, or between NAT and Non-NAT devices, the following configuration is necessary.
- Enable
Direct Media Allowed Behind NAPTand DM flags at the Trunk Group level. - For Direct Media between endpoints behind same NAT, ensure the signaling IPs of the endpoints match.
- For Direct Media across NAT devices, or from NAT to Non-NAT (Hybrid Networks), configure/group the Signaling IPs of the NAT or Non-NAT device (for Hybrid networks) in the new NAT Direct Media Group table at the Address Context level.
Direct Media is disallowed under following conditions:
- One or both endpoints are behind NAT and
Direct Media Allowed Behind NAPTflag is disabled. - If
Direct Media Allowed Behind NAPTflag is enabled and Signaling IPs of the NAT devices do not match. - Signaling IPs of the NAT or Non-NAT (for Hybrid Networks) devices are not grouped in the same NAT Direct Media Group Table.
- Address Context name of both endpoints do not match.
- If the call is a Lawful Intercept call.
To View Nat Direct Media Group
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The Nat Direct Media Group can be checked for each Address Context or for all the Address Contexts created. Use the drop-down box to select the desired Address Contexts.
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The Nat Direct Media Group window is displayed.
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To Edit Nat Direct Media Group
To edit any of the Nat Direct Media Group in the list, click the radio button next to the specific Nat Direct Media Group name.
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The Edit Selected Nat Direct Media Group window is displayed below.
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The object Nat Direct Media Group cannot be edited as the fields are read-only.
To Create Nat Direct Media Group
To create a new Nat Direct Media Group, click New Nat Direct Media Group tab on the Nat Direct Media Group List panel.
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The Create New Nat Direct Media Group window is displayed.
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The following field is displayed:
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To Delete Nat Direct Media Group
To delete any of the created Nat Direct Media Group, click the radio button next to the specific Nat Direct Media Group which you want to delete.
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Click Delete at the end of the highlighted row. A delete confirmation message appears seeking your decision.
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Click
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Yes to remove the specific Nat Direct Media Group from the list.
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