VPN Site to Site Encryption Suite Best Practise

[Mauro_Conoscian]

Any suggestions about the best performance/security parameters to use in a Site to Site Encryption Suite configuration ? I would stress the phase 1 and leave the phase 2 lighter....in few words

Phase 1

               Encryption Alghoritm -->  AES256

               Data Integrity --> SHA256

               DH Group     --> Group14

Phase 2

               Encryption Alghoritm -->  3DES

               Data Integrity --> SHA1

unless the other side peer complain 🐵

What do you think about it ?

[Alex_Gilis]

Avoid 3DES as it's computationally inefficient compared to AES, and AES-NI will give you much better performance.

SHA1 shouldn't be used anymore in favor of AES256+

[G_W_Albrecht]

Refer to sk105119 - Best Practices - VPN Performance and to sk104760 - ATRG: VPN Core. For a comparison of encryption algorithm speeds, refer to sk73980 - Relative speeds of algorithms for IPsec and SSL.

[Danny]

I recommend to differentiate between VPN Site-to-Site between Check Point gateways and with 3rd party VPN gateways.

Best practice settings (bold) for VPN with 3rd party gateways | Compatibility matrix