Jun 8 01:55:03 SRX kmd[15418]: IKE negotiation failed with error: No proposal chosen. IKE Version: 1, VPN: Not-Available Gateway: Not-Available, Local: xxx.xxx.xxx.xxx/500, Remote: xxx.xxx.xxx.xxx/500, Local IKE-ID: Not-Available, Remote IKE-ID: Not-Available, VR-ID: 0

Under : 

Security , ike, gateway xxxxx 

External-interface should of been set to pp0.0 instead of the reth port that using pp0.0