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| LDEV1 | sgardell |
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| AUTHJID | SBX-28998 |
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In this section:
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Use the NAT Traversal window to configure NAT traversal settings for SIP trunk groups. This section describes the various parameters associated with network-hosted NAT/NAPT traversal for SIP endpoints.
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View and Edit
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NAT Traversal Parameters
On the SBC main screen, go to Configuration > System Provisioning > Category: Trunk Provisioning > Trunk Group >
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SIP Trunk Group > Services >
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NAT Traversal. The
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NAT Traversal window
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displays.
Use the drop-down
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lists to select the desired Address Context, Zone and
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SIP Trunk Group.
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The
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Edit NAT Traversal window
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displays.
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Use the following table to configure the NAT traversal settings for the trunk group and then click Save.
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Parameter | Description |
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Signaling |
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NAT | Indicates whether or not NAT/NAPT support is required for signaling. |
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Media Nat
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Media NAT | Specifies |
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whether or not NAT/NAPT support is required for media. |
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Learn NAT For Rtp Only | Enable this flag to learn media NAT from the first RTP packet only. If disabled, media NAT is learned from any first packet received. For egress trunk groups, this flag is applicable only if the Dynamic LRBT flag is disabled. If Dynamic LRBT is enabled, NAPT learning occurs on arrival of RTP packet until the call is connected, at which |
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point Learn |
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NAT For Rtp Only applies |
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even for egress Trunk Groups. The options are: |
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| Ice Support | This parameter indicates the type of Interactive Connectivity Establishment (ICE) method used for STUN packet check. The |
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values are:
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Refer to SDP Support for a detailed description on |
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ICE Support. |
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| Ice Keepalive Timer |
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Specifies the |
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keep alive timer |
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in full-ICE and MS-Lync ICE. The value ranges from |
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0 to |
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60 seconds and the default value is |
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Udp Keepalive Timer
15 seconds.
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| Ice Trickle | Use this flag to enable Trickle Ice Support for the trunk group. The options are:
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TCP Keepalive Timer | This NAT TCP keep-alive timer sets the registration refresh rate (in seconds) for SIP over TCP. (default = 240). | ||||
UDP Keepalive Timer | This NAT UDP keep-alive timer sets the registration refresh rate |
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(in seconds) for SIP over UDP. |
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(default = 60). | |
Outbound Tcp Keepalive Timer | Specifies the NAT outbound keepalive timer (in seconds) for SIP over TCP. The value ranges from 0 to 32767 and the default value is 240. |
Outbound Udp Keepalive Timer | Specifies the NAT outbound keepalive timer (in seconds) for SIP over UDP. The value ranges from 0 to |
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32767 and the default value is 60. |
Secure Media |
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NAT Prefix | Use this parameter to match up to 'N' bits of the network IPv4 address obtained from signaling. If set to "0", feature is disabled, and no match of network IP address will occur. The value ranges from 0 to 32 and the default value is 0. |
| Ice TCP Role | Use this flag to specify if SBC initiates the TCP connection for ICE Lync. The options are:
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Refer to Configuring SBC and LYNC in Media Environment for configuration details. | |||||
| Disable Media NAT If Same Media And Sig IP | Enable this flag to disable Media NAT if Media and Signaling IP addresses are identical. This flag is disabled by default. The options are:
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Make the required changes and click Save at the right hand bottom of the panel to save the changes made.
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