sflow failed

Hello,

I just add a sensor sflow in a one alcatel devices, but the status is not data yet.

I'm tester with sflowtster 1.1.2 and it fails always in step 4.

My config in my router is:

sflow receiver 2 name PRTG address 172.26.131.242 udp-port 6343 packet-size 1400
version 5 timeout 0
sflow poller 1 port 1/1/1-50 receiver 2 interval 10
sflow poller 1 port 2/1/1-50 receiver 2 interval 10
sflow poller 1 port 3/1/1-50 receiver 2 interval 10
sflow poller 1 port 4/1/1-26 receiver 2 interval 10
sflow poller 1 port 5/1/1-50 receiver 2 interval 10
sflow poller 1 port 6/1/1-26 receiver 2 interval 10
ip service source-ip "VLAN-0151" sflow

Can you help me?

Thanks

alcatel prtg sflow