netstat doesn't show sctp associations but prints errors instead. Instead it prints something like: SCTP error in line: 1 There seems to be some fix for this floating around, according to https://bugzilla.redhat.com/show_bug.cgi?id=826676 though I can't seem to find a proper patch without digging into RH SRPMs.
upstream has added/extended support, so probably just updating the snapshot should be sufficient could you do a git clone and double check ? https://sourceforge.net/p/net-tools/code/ci/master/tree/
Got around to test upstream git just today (net-tools-code-f919c51b2467ca0b59841b265415ee5765fd25ca). Sadly it seems the problem stays as it is: SCTP error in line: 1 SCTP error in line: 2 Looking a bit closer in netstat.c the sctp related routines are sctp_do_ept and sctp_do_assoc. While sctp_do_ept seems to work for IPv4 it is most probably broken for IPv6. sctp_do_assoc doesn't even match the format of /proc/net/sctp/assocs for IPv4 and there is seemingly no IPv6 support. Though I could cobble something together for my use case (refrain to do so) it will require people with deeper knowledge of the formatting of the files in /proc/net/sctp with respect to IPv4, IPv6, multiple address associations, etc. to actually update netstat.c properly.
This should be fixed in net-tools-1.60_p20130513023548-r1. I copied a series of patches from Fedora and re-synched them to our latest ebuild, and netstat -anSp now shows IPv4 and IPv6 SCTP associations properly. One odd bit is if the field is 0 or not actually connected to anything, then the field will be blank instead.
you'll need to retest with net-tools-1.60_p20141019041918
Re-opening...
please post a test case for creating SCTP connections that i can run
1. Emerge net-misc/openssh with USE="sctp" 2. Configure "Transport all" in /etc/ssh/sshd_config 3. Connect to sshd using: ssh -o "Transport sctp" ... Sample result with idle sshd waiting for connection: $ netstat -na | grep -i sctp SCTP error in line: 1 sctp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN Thus SCTP IPv6 listen is already not printed properly.
should be fixed by: http://sourceforge.net/p/net-tools/code/ci/7af48590bf304f1314ba0ea1c8c4cc31aa4f8fdc/
