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Is Phase 2 requiring for full security

Discussion in 'Cisco Small Business Routers and VPN Solutions' started by egyvoip, Nov 18, 2006.

  1. egyvoip

    egyvoip LI Guru Member

    Hi

    I creat a VPN between 2 RV042 and it is working fine, but can you please lock at attached picture and tell me if this VPN is very secure, or it still requiring adding phase 2 encryption. while I disable it to save BW.

    Thank you
     

    Attached Files:

  2. Toxic

    Toxic Administrator Staff Member

    you need both setup for a secure connection.

    The Phase 1 establishes an IKE Security Assocation through which the Phase 2 negotiation creates IPSec SAs.

    tbh I would use the minimum of 3DES/SHA1 for both. check out the Linksysinfo Videos (downloads section)of setting up a VPN tunnel between a WRV200/WRV54G, you'll see the setup much better.
     
  3. pablito

    pablito Network Guru Member

    I agree. You're setting up the initial tunnel secure but then run it without encryption. Normally we do phase 1 with the highest security (like 3DES or AES-256 instead of AES 128) and then back off a bit at phase 2. I find AES 128 + compression for phase 2 to work well. My tests show me that compression makes up for any overhead and compressible data like plain text get at least 5-1 compression over the stated bandwidth. This makes web and email traffic over the VPN faster than over non VPN routes.
     
  4. egyvoip

    egyvoip LI Guru Member

    Thank you...
     

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