Intel 9515 User Manual
DMZ Firewall Solution for the Express Router
07-12-99 Version
1.0
2
Table of Contents
1
Introduction ............................................................................................................................3
1.1 About This Document ..........................................................................................................3
1.2 References ............................................................................................................................3
1.3 What is a DMZ.....................................................................................................................3
1.4 IP Filters in the Express Router............................................................................................4
1.2 References ............................................................................................................................3
1.3 What is a DMZ.....................................................................................................................3
1.4 IP Filters in the Express Router............................................................................................4
2
General Setup and Considerations .......................................................................................4
2.1 IP Address Selection ............................................................................................................4
2.2 Routing Setup.......................................................................................................................5
2.3 DNS Setup............................................................................................................................5
2.4 E-mail (SMTP) Setup...........................................................................................................5
2.5 FTP Setup.............................................................................................................................5
2.6 HTTP Setup..........................................................................................................................5
2.7 News (NNTP) Setup ............................................................................................................5
2.8 Management Access Setup...................................................................................................5
2.2 Routing Setup.......................................................................................................................5
2.3 DNS Setup............................................................................................................................5
2.4 E-mail (SMTP) Setup...........................................................................................................5
2.5 FTP Setup.............................................................................................................................5
2.6 HTTP Setup..........................................................................................................................5
2.7 News (NNTP) Setup ............................................................................................................5
2.8 Management Access Setup...................................................................................................5
3
DMZ Single IP Address Solution..........................................................................................6
3.1 Static Routing Setup.............................................................................................................6
3.2 Network Address Translation (NAT) Setup.........................................................................6
3.3 IP Filters Setup .....................................................................................................................7
3.2 Network Address Translation (NAT) Setup.........................................................................6
3.3 IP Filters Setup .....................................................................................................................7
3.3.1
LAN1 Filters ................................................................................................................7
3.3.1.1
Receive (Rx) Filters on LAN1 .............................................................................7
3.3.1.2
Transmit (Tx) Filters on LAN1 ............................................................................8
3.3.2
LAN2 Filters ..............................................................................................................10
3.3.2.1
Receive (Rx) Filters on LAN2 ...........................................................................10
3.3.2.2
Transmit (Tx) filters on LAN2...........................................................................12
3.3.3
Internet Connection Filters.........................................................................................13
3.3.3.1
Receive (Rx) Filters on the connection to the Internet.......................................13
3.3.3.2
Transmit (Tx) Filters on the Connection to the Internet.....................................16
4
DMZ Multiple IP Address Solution....................................................................................17
4.1 IP Address Assignment ......................................................................................................17
4.2 Static Routing Setup...........................................................................................................17
4.3 Network Address Translation (NAT).................................................................................18
4.4 IP Filters Setup ...................................................................................................................18
4.2 Static Routing Setup...........................................................................................................17
4.3 Network Address Translation (NAT).................................................................................18
4.4 IP Filters Setup ...................................................................................................................18
4.4.1
LAN1 Filters ..............................................................................................................18
4.4.1.1
Receive (Rx) Filters on LAN1 ...........................................................................18
4.4.1.2
Transmit (Tx) Filters on LAN1 ..........................................................................19
4.4.2
LAN2 Filters ..............................................................................................................21
4.4.2.1
Receive (Rx) Filters on LAN2 ...........................................................................21
4.4.2.2
Transmit (Tx) filters on LAN2...........................................................................24
4.4.3
Internet Connection Filters.........................................................................................24
4.4.3.1
Receive (Rx) Filters on the Connection to the Internet......................................24
4.4.3.2
Transmit (Tx) Filters on the Connection to the Internet.....................................27