vi User’s Reference GuideVPN QuickView ........................................................ 10-137Dial-Up Networking for VPN ....................................... 10-138Installing Dial-Up Networking ........................... 10-138Creating a new Dial-Up Networking profile ........ 10-139Configuring a Dial-Up Networking profile ........... 10-140Installing the VPN Client ........................................... 10-141Windows 95 VPN installation........................... 10-141Windows 98 VPN installation........................... 10-142Connecting using Dial-Up Networking ............... 10-143Allowing VPNs through a Firewall ............................... 10-143PPTP example ................................................ 10-144ATMP example ............................................... 10-146Chapter 11 — Security .......................................................11-151Suggested security measures ................................... 11-151User accounts ......................................................... 11-151Telnet access .......................................................... 11-153About filters and filter sets ....................................... 11-154What’s a filter and what’s a filter set?.............. 11-154How filter sets work........................................ 11-154How individual filters work............................... 11-156Design guidelines........................................... 11-161Working with IP filters and filter sets.......................... 11-162Adding a filter set ........................................... 11-162Deleting a filter set......................................... 11-167A sample IP filter set ...................................... 11-167Firewall tutorial ........................................................ 11-170General firewall terms .................................... 11-170Basic IP packet components ........................... 11-171Basic protocol types ....................................... 11-171Firewall design rules....................................... 11-172Filter basics ................................................... 11-174Example filters ............................................... 11-175
