Reference Manual for the ProSafe VPN Firewall 25 with 4 Gigabit LAN and Dual WAN Ports
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202-10085-01, March 2005
Routing Information Protocol .................. ................................................................. B-2
IP Addresses and the Internet ............... ... .... ................................................................. B-2
Netmask .................................................................................................................. B-4
Subnet Addressing .................................................................................................. B-5
Private IP Addresses .......... ... .................... ... ... ... .... ... ... ... .... ................... ... ... .... ... ... . B-7
Single IP Address Operation Using NAT ....................................................................... B-8
MAC Addresses and Address Resolution Protocol ................................................. B-9
Related Documents ................................................................................................. B-9
Domain Name Server ............................................................................................ B-10
IP Configuration by DHCP ........... .... ................... ... ... .... ... ... ... .... ... ... ... .... ... .................. B-10
Internet Security and Firewalls .................................................................................... B-10
What is a Firewall? .................................................................................................B-11
Stateful Packet Inspection ............... ... ... ... ... .... ... ... ... .................... ... ... ... .... ... ...B-11
Denial of Service Attack ..................................................................................B-11
Ethernet Cabling ............. .... ... ... ... .... ... ... ................... .... ... ... ... .... ... ... ... .... ... ... ... ... .... ... ...B-11
Category 5 Cable Quality ...................................................................................... B-12
Inside Twisted Pair Cables .................................................................................... B-13
Uplink Switches, Crossover Cables, and MDI/MDIX Switching ............................ B-14
Appendix C
Preparing Your Network
Preparing Your Computers for TCP/IP Networking ............... .... ... ... ... .... ... ... ... ... .... ... ... . C-1
Configuring Windows 95, 98, and Me for TCP/IP Networking ....................................... C-2
Install or Verify Windows Networking Components ...... ....................... .................... C-2
Enabling DHCP to Automatically Configure TCP/IP Settings ................................. C-4
Selecting Windows’ Internet Access Method .......................................................... C-6
Verifying TCP/IP Properties .................................................................................... C-6
Configuring Windows NT4, 2000 or XP for IP Networking ............................................ C-7
Install or Verify Windows Networking Components ...... ....................... .................... C-7
Enabling DHCP to Automatically Configure TCP/IP Settings ................................. C-8
DHCP Configuration of TCP/IP in Windows XP ..................................................... C-8
DHCP Configuration of TCP/IP in Windows 2000 ................................................ C-10
DHCP Configuration of TCP/IP in Windows NT4 .................................................. C-13
Verifying TCP/IP Properties for Windows XP, 2000, and NT4 ............... ...... .... ... .. C-15
Configuring the Macintosh for TCP/IP Networking ...................................................... C-16
MacOS 8.6 or 9.x ......... ... ... .................... ... ... ... ... .... ... ... ... .................... ... ... ... .... ... .. C-16