T1 lines, 14, 245, 257
T3 lines, 244, 245, 246
Task Scheduler, 237
TCP (Transmission Control Protocol), 57, 118, 190. See also TCP/IP (Transmission Control Protocol/Internet Protocol)
TCP/IP (Transmission Control Protocol/Internet Protocol). See also TCP (Transmission Control Protocol)
deployment, 111, 121, 215, 233, 267
intranet infrastructure, 121
packet filtering, 267
protocol stack, 233
site-to-site VPNs, 233, 300, 308
troubleshooting, 278, 287, 296, 300, 308
unable to connect problems, 300
version 6 (TCP/IPv6), 7
VPN routers, 308
VPN servers, 111
test labs, 130–140
token cards, 40, 55
tracing, 280–282
Transmission Control Protocol (TCP). See TCP (Transmission Control Protocol)
Transmission Control Protocol/Internet Protocol (TCP/IP). See TCP/IP (Transmission Control Protocol/Internet Protocol)
Transmit All Packets Except Those That Meet The Criteria Listed Below option, 184
Triple Data Encryption Standard (3DES), 42, 118
troubleshooting
accounting, 278
authentication, 278, 289–292, 301–306
described, 277, 295
DHCP, 277, 286, 292
divide-and-conquer approach, 277, 295
EAP-TLS, 289–292
events, 279
IAS, 279, 283
ICMP, 283
L2TP/IPSec, 285, 288
log files, 278–280
MS-CHAP, 283, 287
on-demand connections, 297, 309
PPP, 280, 282
PPTP, 282, 285, 287
RADIUS, 279, 283, 286
TCP/IP, 278, 287
tools, 278–282, 295
unable to connect problems, 283–292, 296–306
tunneling
address assignment, 56
compulsory, 29–30
Connection Manager, 142
deployment, 217
described, 12, 17–18
encryption, 16
interoperability, 52, 54, 56
L2TP/IPSec, 40
protocols, 19–28, 75–82
quarantine features, 142
site-to-site VPNs, 301, 308
split, 87
SSL VPN, 57
technologies, 18
troubleshooting, 287, 301, 308
types, 29–30
unable to connect problems, 301
voluntary, 29
Winsock Proxy, 287
Tunnel-Type condition, 91, 197
Type Of VPN option, 251