Implementing VPNs

Implementing VPNs

1. Two types of VPNs

   • Remote-Access VPNs
   • Site-to-Site VPNs

2. IPsec Technologies

   • Confidentiality
   • Integrity
   • Authentication
   • IPsec Protocols
     • Authentication header
     • ESP
       • Encrypts and authenticate
     • Transport and tunnel models

3. Secure key exchange

   • Integrity key exchange
   • IKE Protocol

4. Implementing site-to-site VPNs with CLI

   • IPsec negotiation
   • IPsec VPN configuration tasks
   • ISAKMP Policy
     • Default
     • Configure
   • IPsec policy
   • Crypto map
   • IPsec VPN

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