Hi, On Mon, Dec 13, 2021 at 12:16:08PM +0100, Petr Vorel wrote: > Hi all, > > what is the reason there is no support for sha256 as default > (SCTP_DEFAULT_COOKIE_HMAC_SHA256)? sha256 is mentioned in RFC 4895 (2007). I'm not aware of any particular reason. Perhaps it just wasn't implemented. We're open to patches, btw. ;-) Marcelo