[SR-Users] listening at link local IPv6 address
Juha Heinanen
jh at tutpro.com
Sun Apr 21 21:32:30 CEST 2019
Digging a bit more into this, it appears that in case of link local ipv6
address. also sin6_scope_id of sockaddr_in6 needs to be set:
struct sockaddr_in6
{
__SOCKADDR_COMMON (sin6_);
in_port_t sin6_port; /* Transport layer port # */
uint32_t sin6_flowinfo; /* IPv6 flow information */
struct in6_addr sin6_addr; /* IPv6 address */
uint32_t sin6_scope_id; /* IPv6 scope-id */
};
and there is function if_nametoindex() in <net/if.h> that can be used to
convert interface name (in my case wlp1s0) into the scope id.
-- Juha
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