allow_nat_traversal()

void xtd::net::sockets::udp_client::allow_nat_traversal

(

bool

allowed

)

Enables or disables Network Address Translation (NAT) traversal on a xtd::net::sockets::udp_client instance.

Parameters

allowed

A boolean value that specifies whether to enable or disable NAT traversal.

Exceptions

xtd::net::sockets::socket_exception

An error occurred when attempting to access the underlying socket.

Remarks

The xtd::net::sockets::udp_client::allow_nat_traversal method is used to enable or disable NAT traversal for a xtd::net::sockets::udp_client instance. NAT traversal may be provided using Teredo, 6to4, or an ISATAP tunnel.

When the allowed parameter is false, the xtd::net::sockets::ip_protection_level option on the associated socket is set to xtd::net::sockets::ip_protection_level::edge_restricted. This explicitly disables NAT traversal for a xtd::net::sockets::udp_client instance.

When the allowed parameter is true, the xtd::net::sockets::ip_protection_level option on the associated socket is set to xtd::net::sockets::ip_protection_level::edge_unrestricted. This may allow NAT traversal for a xtd::net::sockets::udp_client depending on firewall rules in place on the system.

A Teredo address is an IPv6 address with the prefix of 2001::/32. Teredo addresses can be returned through normal DNS name resolution or enumerated as an IPv6 address assigned to a local interface.

Note

If you receive a xtd::net::sockets::socket_exception, use the xtd::net::sockets::socket_exception::error_code property to obtain the specific error code. After you have obtained this code, refer to the Windows Sockets version 2 API error code documentation in the MSDN library for a detailed description of the error.