I confirmed the package "4.2.6.p5+dfsg-3ubuntu8.2" solve the bug in Ubuntu Wily
# With port <123 using ntpdate (without patch) 11 Feb 20:30:09 ntpdate[2348]: no server suitable for synchronization found
# With port <123 using ntpdate (including patch) 11 Feb 20:32:18 ntpdate[3243]: adjust time server 10.10.10.107 offset 0.002017 sec
Eric
I confirmed the package "4.2.6. p5+dfsg- 3ubuntu8. 2" solve the bug in Ubuntu Wily
# With port <123 using ntpdate (without patch)
11 Feb 20:30:09 ntpdate[2348]: no server suitable for synchronization found
# With port <123 using ntpdate (including patch)
11 Feb 20:32:18 ntpdate[3243]: adjust time server 10.10.10.107 offset 0.002017 sec
Eric