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ACS. For information about the support of your ACS for provision codes, see the ACS
documentation.
The CPE can have only one provision code. If you execute this command multiple times, the most
recent configuration takes effect.
Examples
# Set the provision code to ABC20150714.
<Sysname> system
[Sysname] cwmp
[Sysname-cwmp] cwmp cpe provision-code ABC20150714
cwmp cpe stun enable
Use cwmp cpe stun enable to enable NAT traversal for the connection requests from the ACS to
reach the CPE through a NAT gateway.
Use undo cwmp cpe stun enable to restore the default.
Syntax
cwmp cpe stun enable
undo cwmp cpe stun enable
Default
NAT traversal is disabled for CWMP.
Views
CWMP view
Predefined user roles
network-admin
Usage guidelines
Connection requests initiated from the CPE can reach the ACS through a NAT gateway without NAT
traversal. However, for the connection request initiated from the ACS to reach the CPE, you must
enable NAT traversal on the CPE when a NAT gateway resides between the CPE and the ACS.
The NAT traversal feature complies with Simple Traversal of UDP Through NATs (STUN), RFC 3489.
The feature enables the CPE to do the following:
• Discovers the NAT gateway.
• Obtains an open NAT binding (a public IP address and port binding) through which the ACS can
send unsolicited packets.
The CPE sends the binding to the ACS when it initiates a connection to the ACS. For the connection
requests sent by the ACS at any time to reach the CPE, the CPE maintains the open NAT binding.
For more information about NAT, see Layer 3—IP Services Configuration Guide.
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