[GitHub] [incubator-nuttx] v01d opened a new issue #3376: TCP IPv4-MAPPED IPv6 ADDRESSES

[GitBox <gi...@apache.org>]

v01d opened a new issue #3376:
URL: https://github.com/apache/incubator-nuttx/issues/3376


   ```
     Description: The UDP implementation in net/udp contains support for Hybrid
                  dual-stack IPv6/IPv4 implementations that utilize a special
                  class of addresses, the IPv4-mapped IPv6 addresses.  You can
                  see that UDP implementation in:
   
                    udp_callback.c:
                      ip6_map_ipv4addr(ipv4addr,
                    udp_send.c:
                      ip6_is_ipv4addr((FAR struct in6_addr*)conn->u.ipv6.raddr)))
                      ip6_is_ipv4addr((FAR struct in6_addr*)conn->u.ipv6.raddr))
                      in_addr_t raddr = ip6_get_ipv4addr((FAR struct in6_addr*)conn->u.ipv6.raddr);
   
                  There is no corresponding support for TCP sockets.
     Status:      Open
     Priority:    Low.  I don't know of any issues now, but I am sure that
                  someone will encounter this in the future.
   ```


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