[Koha] SIP2 Problem

[Abdulsalam Yousef]

Hi All,
We are using Amazon EC2 linux wheezy (64 bit)  instance for running koha
3.16.01, We are running Sip2 server now
although we changed the line (port="127.0.0.1:6001/tcp") to our amazon
private ip like this (port="10.106.151.178:6001/tcp")
but when trying to logging by telnet the log file also gets us this error

Bad arg length for Socket::unpack_sockaddr_in, length is 28, should be 16
at /usr/share/koha/lib/C4/SIP/Socket.pm line 830.

Although, the desired ports are opened and there's no any typo.

thanks