Bitbucket hook doesn't arrive in Jenkins mac

Question

This question already asked here . I feel that I missing something small. What did I do: 1.Installed Jenkins. (without jenkins user just to avoid moving all the ssh between users).
Jenkins
1/a I installed all the necessary plugins (git plugin...)
1/b Set my build with git repository and a key
1/c Jenkins global Security Jenkins own data enabled and Any one can do anything selected.
1/d in configuration system Jenkins url set http://extrnalIp:8081/
1/e I can build my project its get cloned from bit Bucket and build itself.
Router I set port forawrding to 8081 so it will not interfere with 8080.
1/a before moving to port forwarding I tried it with usual port 8080.
BitBucket
In the hook section I tried the following options.
1/a http://username:30df7f2e47fd262225b3ca3519388959@externalIP:8081/
projectname:TestHook, token: someToken.
1/b POST: http://userName:30df7f2e47fd262225b3ca3519388959@externalIP:8081/job/TestHook/build?token=someToken
1/c I followed bitbucket explanation (as some references which I found on the web)... bitbucket troubleshooting dint help me too much. some other options which I already don't remember.

I push something to my repository but the Hook never get triggered. I set a packet sniffer but I see nothing come to the port 8081.

can somebody advise me what can be the problem or what to try. I am new to Jenkins.

Tnx A lot.

Answer 1

In the end I finished with setting down Poll SCM in project configuration with schedule:

*/1 * * * *

every minute.