Using perl to create SNMP session towards local machine always use localport=161

Hi,
 
I'm using Net-SNMP 5.2.1.2 which have been built using ./configure
--prefix=<my path> --with-defaults --enable-shared --with-zlib
--with-openssl=<my path>
After installation I have built the perl SNMP modules which I'm then
trying to use to create a SNMP session towards my local machine on a
specified port.
 
I'm using the following code to test:
 
#!/usr/bin/perl -w

use SNMP;

$trapsink = new SNMP::Session(Version => '2c', DestHost => '0.0.0.0',
LocalPort => '1620');
 
if(defined $trapsink) {
   print "Session created\n";
} else {
   print "Could not create session\n";
}
 
It seem like my LocalPort parameter is ignored and instead it will try
to use 161 which will fail if Solaris snmpd is running (normally on 161)
or if I don't run my test as root. I need it to use the supplied
LocalPort and not default to 161.
 
Have anyone seen the same behaviour?
Have I missed some configuration?
 
This works in the old UCD-SNMP 4.2.5.
 
All tips would be useful.
 
/BR,
J