Set UDP packet size in ng_netflow/ng_ksocket?

[Dennis Yusupoff]

Are there any way to set UDP packet size generated from ng_netflow with
ng_ksocket?
I'm sending netflow UDP packets throught tunnel with MTU 1476 and it's
disappointing to see fragmented packets on it as far as it could be a
problem for some firewalls, because ng_ksocket always generate
1500-bytes packets. Or I'm wrong?

-- 
Best regards,
Dennis Yusupoff,
network engineer of
Smart-Telecom ISP
Russia, Saint-Petersburg