Index_V

V

Validate Server Certificate option, 97, 99, 212

VANs (value-added networks), 12

vendors

interoperability, 53, 56, 59

PPTP, 56

recommendations, 59

SSL VPN, 58

standards, 52, 53

vendor-specific attributes (VSAs). See VSAs (vendor-specific attributes)

video communications, 8

Virtual Private Network Connection option, 250, 251

Visual Basic (Microsoft), 106

Visual Basic Scripting Edition (Microsoft), 106

VPN clients. See also clients

configuring, 66, 123

deployment, 123–124

name resolution, 83

routing, 92–94

site-to-site VPNs, 172

troubleshooting, 284

VPN Connection page, 137

VPN Consortium, 55

VPN routers. See also routing

accounting, 183, 185

answering, 178

authentication, 55, 183, 185

auto-static updates, 236–237

calling, 178

certificates, 181

configuring, 181–185, 228

connection types, 181

deployment, 214–222, 228, 253

described, 177–185

DHCP, 182

firewalls, 186

IP addresses, 182

L2TP/IPSec, 183

network redundancy, 229

packet filtering, 43

policies, 178–181

reachability, 186–187, 234

site network infrastructure, 192–194, 228–235

static routing, 235

unable to reach locations beyond, 296, 306–308

unable to reach virtual interface problems, 296, 308–309

Windows Server 2003 installation, 215

VPN servers. See also servers

accounting, 82

ASBR, 86

authentication, 82

certificates, 81

configuring, 79–82, 120, 244–249, 260, 263

deployment, 111, 120–121, 122, 244–248

described, 77–79

DHCP clients, 80

installing Windows Server 2003, 111

IP addresses, 80

LAN connections, 79

multiple, 81

name resolution, 84–88

network configuration, 244–248

perimeter networks, 111

placing, 111

policies, 82

ports, 81

reachability, 72

routing, 84–88, 122

site-to-site VPNs, 172

troubleshooting, 284, 292

unable to reach locations beyond, 292

VPN Type option, 286

VSAs (vendor-specific attributes), 118