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https://www.ncp-e.com/en/exclusive-remote-access-solution/vpn-client/
https://www.ncp-e.com/en/service-resources/download-vpn-client/
NCP-E Vs Pulse Secure:
Pulse client use dynamic VPN and it is NOT supported on the SRX1500. NCP based client VPN is supported on SRX1500.
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