The IPsec is an industry-standard, so as long as the configuration is following the standard IPsec parameters, it should be able to establish the site-to-site VPN tunnel with Peplink/Pepwave devices.
You may refer to these articles for configuration guidance:
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How to Configure IPsec to Cisco IOS Using Pre-shared Key Authentication
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How to IPsec to the Cisco ASA 5505 v9.x Firewall Using Pre-shared Key Authentication
Hope this helps.