L2TP/IPSec
authentication protocols for connections for VPN 394
computer certificates for remote site-to-site connections 526
configuring filters for VPN servers behind firewalls 411
configuring filters for VPN servers in front of firewalls 415
connecting remote sites 478–480
described 390
Internet interface of firewalls for VPN servers 412
NAT requirements for VPN protocols 392
perimeter network interface of firewalls for VPN servers 412
remote site connectivity overview 473
lease duration, DHCP scope 87–88
link encryption
compared to end-to-end encryption 492
VPN 395
link state routing protocols 13
listener component (Rqs.exe) 399, 401, 416
lists, IPSec filter 277–280
load balancing
See also Network Load Balancing
IAS proxy 325
multiple IAS servers 339
TCP/IP network availability 35
WINS 190
local computer policy, IPSec 301
local user accounts 496
logging, IAS 365
low-level DNS security policy 158