IPV6_ADDR_INT32_MNL  181 native_client_sdk/src/libraries/third_party/newlib-extras/netinet6/in6.h #define IPV6_ADDR_INT32_MNL	0xff010000
IPV6_ADDR_INT32_MNL  190 native_client_sdk/src/libraries/third_party/newlib-extras/netinet6/in6.h #define IPV6_ADDR_INT32_MNL	0x000001ff