Network Security v1.0 - Module 19 (Implement Site-to-Site IPsec VPNs with CLI)
Module 19: Implement Site-to-Site IPsec VPNs with CLI
Site-to-Site IPsec VPN Configuration:
IPsec Negotiation Steps:
Phase 1 (ISAKMP Tunnel): Both peers authenticate and agree on security policies.
Phase 2 (IPsec Tunnel): Establishes encryption and integrity policies for data traffic.
Interesting Traffic: VPN negotiation is triggered by traffic that matches the defined ACL.
Configuration Tasks:
Configure ISAKMP Policy for IKE Phase 1:
Configure IPsec Policy for Phase 2:
Crypto Map:
Apply IPsec Policy:
ISAKMP Policy Configuration:
Crypto Map Configuration:
Verification:
Handling Routing Protocol Traffic: