HP-UX IPFilter A.03.05.13 Administrator's Guide: HP-UX 11i v3
Table Of Contents
- HP-UX IPFilter Version A.03.05.13 Administrator's Guide
- Legal Notices
- Table of Contents
- Preface: About This Document
- 1 Installing and Configuring HP-UX IPFilter
- Overview of HP-UX IPFilter Installation
- Step 1: Checking HP-UX IPFilter Installation Prerequisites
- Step 2: Loading HP-UX IPFilter Software
- Step 3: Determining the Rules for IPFilter
- Step 4: Adding Rules to the Rules Files
- Step 5: Loading IPFilter and NAT Rules
- Step 6: Verifying the Installation and Configuration
- Kernel Tunable Parameters
- Supported and Unsupported Interfaces
- Troubleshooting HP-UX IPFilter
- 2 HP-UX IPFilter on HP-UX 11i Version 3
- 3 Rules and Keywords
- IPFilter Configuration Files
- Basic Rules Processing
- IPFilter Keywords
- pass and block: Controlling IP Traffic
- in and out: Bidirectional Filtering
- quick: Optimizing IPFilter Rules Processing
- on: Filtering by Network Interfaces
- from and to: Filtering by IP Addresses and Subnets
- log: Tracking Packets on a System
- proto: Controlling Specific Protocols
- opt and ipopts: Filtering on IP Options
- icmp-type: Filtering ICMP Traffic by Type
- port: Filtering on TCP and UDP Ports
- keep state: Protecting TCP, UDP, and ICMP Sessions
- flags: Tight Filtering Based on TCP Header Flags
- keep frags: Letting Fragmented Packets Pass
- with frags: Dropping Fragmented Packets
- with short: Dropping Short Fragments
- return-rst: Responding to Blocked TCP Packets
- return-icmp: Responding to Blocked ICMP Packets
- dup-to: Drop-Safe Logging
- NAT Keywords
- 4 Dynamic Connection Allocation
- 5 Firewall Building Concepts
- Blocking Services by Port Number
- Using Keep State
- Using Keep State with UDP
- Using Keep State with ICMP
- Logging Techniques
- Improving Performance with Rule Groups
- Localhost Filtering
- Using the to
- Creating a Complete Filter by Interface
- Combining IP Address and Network Interface Filtering
- Using Bidirectional Filtering Capabilities
- Using port and proto to Create a Secure Filter
- 6 HP-UX IPFilter Utilities
- 7 HP-UX IPFilter and FTP
- 8 HP-UX IPFilter and RPC
- 9 HP-UX IPFilter and IPSec
- 10 HP-UX IPFilter and Serviceguard
- A HP-UX IPFilter Configuration Examples
- B HP-UX IPFilter Static Linking
- C Performance Guidelines
- Index
HP-UX IPFilter Utilities
The ipftest Utility
Chapter 6106
The following packets will be used to test this rule set:
in on lan0 udp 10.1.84.195,16000 10.1.84.196,16000
in on lan1 udp 10.1.84.195,16000 10.1.85.196,16000
in on lan0 udp 10.1.84.195,16000 10.1.80.196,16000
in on lan0 udp 10.1.85.195,16000 10.1.84.196,16000
in on lan1 udp 10.1.85.195,16000 10.1.85.196,16000
in on lan0 udp 10.1.85.195,16000 10.1.80.196,16000
out on lan0 udp 10.1.84.196,16000 10.1.84.195,16000
out on lan1 udp 10.1.85.196,16000 10.1.84.195,16000
out on lan0 udp 10.1.80.196,16000 10.1.84.195,16000
out on lan0 udp 10.1.84.196,16000 10.1.85.195,16000
out on lan1 udp 10.1.85.196,16000 10.1.85.195,16000
out on lan0 udp 10.1.80.196,16000 10.1.85.195,16000
in on lan0 udp 10.1.81.195,16000 10.1.84.196,16000
in on lan1 udp 10.1.81.195,16000 10.1.85.196,16000
out on lan0 udp 10.1.84.196,16000 10.1.81.195,16000
out on lan1 udp 10.1.85.196,16000 10.1.81.195,16000
out on lan0 icmp 10.1.84.196 10.1.84.195
in on lan0 icmp 10.1.84.195 10.1.84.196
out on lan0 udp 10.1.80.196,16001 10.1.84.195,16000
out on lan0 udp 10.1.80.196,16001 10.1.85.195,16000
in on lan0 udp 10.1.84.195,16000 10.1.80.196,16001
in on lan0 udp 10.1.85.195,16000 10.1.80.196,16001
These packets are similar to a test machine setup that is used in the
actual testing of IPFilter. The name of the rules file is test01 and the
name of the packet file is packets01. The packets are processed with
ipftest using the following command:
ipftest -r test01 -i packets01
The following is the output of ipftest:
opening rule file "test01"
input: in on lan0 udp 10.1.84.195,16000 10.1.84.196,16000
pass ip 28(20) 17 10.1.84.195,16000 > 10.1.84.196,16000
--------------
input: in on lan1 udp 10.1.84.195,16000 10.1.85.196,16000
pass ip 28(20) 17 10.1.84.195,16000 > 10.1.85.196,16000