IPsec Virtual Private Network Fundamentals

Index

Numerics

3DES (triple data encryption standard), 21

A–B

aggressive mode negotiation, 89–90

AH (Authentication Headers), 6, 57–58

alternatives to IPsec VPN HA,

stateful, 257–260

stateless, 242

HSRP, 244–245

RRI, 245

applying crypto maps in SOHO environments, 432–446

asymmetric cryptography, 392

asymmetric key encryption, 36–39, 46

impact on CPU processing, 404

asymmetric routing as cause of broken VPN tunnels, 220

authentication, 44

of public key certificates, 402

authentication errors (IKE), troubleshooting, 146–165

authentication services (IKE)

preshared keys, 83–85

RSA encryption, 85

RSA signatures, 86–87

X.509 certificates, 86–87

BGP (Border Gateway Protocol), crypto path availability, 219

business drivers for VPNs, 29–30

remote access ...