Red Hat Bugzilla – Bug 1005728
ss incorrect layer 4 protocol detection, regression
Last modified: 2014-04-26 08:36:33 EDT
Description of problem:
ss shows UDP open ports as TCP.
Version-Release number of selected component (if applicable):
Compare commands output:
# netstat -lnptu | grep vpn
udp 0 0 0.0.0.0:1194 0.0.0.0:* 781/openvpn
At the same time:
# ss -lnptu | grep vpn
tcp UNCONN 0 0 *:1194 *:* users:(("openvpn",781,4))
You state this is a regression; do you know what versions were unaffected by this issue?
I've tested iproute-3.6.0-8.fc18.i686 from previous Fedora release and it works fine.
Fixed in iproute-3.14.0-1.fc20.