ocserv:could not determine the owner of received UDP packet

[Niclau Liu]

Dear openconnect-devel team:
I am running ocserv-3.3 in my ubuntu 13.04 x86(openvz vps).
In my phone(lg f160l android 4.1.2) use cisco anyconnect ics+ client
to connect to server.
Very often when phone back form sleep ,VPN connection seem alive,but
couldn't reach the VPN gateway,unless reconncet the VPN.

ocserv log shows.
ocserv[24557]: main: 60.166.0.0:43075
TLS session DB storing a810baeebbdebe6
2851189fc426db03b0047fb48ce1b510ba9b52c02b278dabb
ocserv[24640]: worker: 60.166.0.0:43075
TLS handshake completed
ocserv[24640]: worker: 60.166.0.0:43075
sent sid: sB7+o2UjgxV2Qz6l
ocserv[24557]: main: 60.166.0.0:43075
main-misc.c:489: command socket closed
ocserv[24557]: main: 60.166.0.0:43075
removing client '' with id '24640'
ocserv[24557]: main: DTLS record version: 1.0
ocserv[24557]: main: DTLS hello version: 39.201
ocserv[24557]: main: unexpected DTLS content type: 23
ocserv[24557]: main: could not determine the owner of received UDP packet
ocserv[24557]: main: DTLS record version: 1.0
ocserv[24557]: main: DTLS hello version: 95.250
ocserv[24557]: main: unexpected DTLS content type: 23
ocserv[24557]: main: could not determine the owner of received UDP packet
ocserv[24557]: main: DTLS record version: 1.0
ocserv[24557]: main: DTLS hello version: 76.12
ocserv[24557]: main: unexpected DTLS content type: 23
ocserv[24557]: main: could not determine the owner of received UDP packet
ocserv[24557]: main: DTLS record version: 1.0
ocserv[24557]: main: DTLS hello version: 74.179
ocserv[24557]: main: unexpected DTLS content type: 23
ocserv[24557]: main: could not determine the owner of received UDP packet
ocserv[24557]: main: Performing maintenance
ocserv[24557]: main: could not determine the owner of received UDP packet

Any suggestion?

Thanks.