UDP (User Datagram Protocol), 18, 23, 32, 148
ports, 95
site-to-site VPNs, 190
Under Construction Web page, 136
UNIX, 4
unnumbered connections, 183
Unreachability Reason tool, 296
untrusted interfaces, 179
Update Certificates That Use Certificate Templates option, 109
Update Routes option, 237
updates
auto-static, 172, 236–237
demand-dial routing, 171
Group Policy, 105, 151, 154, 159
RIP, 307
troubleshooting, 288
Windows, 190
UPN (user principal name), 290, 304
US Robotics, 54
Use A Certificate On This Computer option, 212
Use Advanced Security Settings option, 161
Use Default Gateway On Remote Network option, 86, 87
Use My Smart Card option, 97
Use This Route To Initiate Demand-Dial Connections option, 235, 309
user accounts. See also accounts
AAA infrastructure, 94, 198, 223
Active Directory, 112
Connection Manager, 140
creating, 140
deployment, 112, 114
domains, 198
one-way initiated connections, 199
quarantine features, 140
site-to-site VPNs, 177, 198, 199
static routing, 199
unable to connect problems, 283
VPN routers, 177
user certificates. See also certificates
deployment, 102, 207
described, 102
installing, 107–110, 207
User Datagram Protocol (UDP). See UDP (User Datagram Protocol)
User Must Change Password At Next Logon option, 178, 198, 252
User Name On Certificate option, 212
User Or Group Access page, 117, 141, 143, 144, 226
user principal name (UPN). See UPN (user principal name)
Users And Computers snap-in, 104, 108, 114
certificates, 150, 210
Connection Manager, 132, 133, 140, 150
creating user accounts, 140
deployment, 210
IAS, 224
quarantine features, 132, 133, 140, 150