Thank you for your reply, as you said, I want to figure out why I can connect successfully and I can not receive the downlink data > ? 2017?11?22????8:54?Nikos Mavrogiannopoulos <n.mavrogiannopoulos at gmail.com> ??? > > On Wed, Nov 22, 2017 at 3:34 AM, ping gao ??(0) <ping.gao at corp.elong.com> wrote: >> Thank you for your reply >> Update Ocserv to 0.11.9 The problem persists, >> My OS Info: >> CentOS Linux release 7.2.1511 (Core) > > I checked it a little further, and I was originally mistaken. The > issue is not on ocserv on centos7. You may want to figure out any > system configuration that is impeding communication. > > regards, > Nikos