Find number of current dynamic VPN users currently connected to SRX300
show security dynamic-vpn users
example:
root@srx-pes> show security dynamic-vpn users
User: username , Number of connections: 1
Remote IP: 2.2.2.3
IPSEC VPN: DYN-VPN
IKE gateway: DYN-VPN-LOCAL-GW
IKE ID : usernamePESSRX
IKE Lifetime: 28800
IPSEC Lifetime: 3600
Status: CONNECTED