HP-UX IPFilter Version 16 Administrator's Guide

Using the log keyword to Configure IPFilter Logging...................................................................78
level log-level........................................................................................................................78
first..............................................................................................................................................78
body............................................................................................................................................79
Using ipmon to View IPFilter Log Entries......................................................................................80
Syntax.........................................................................................................................................80
Options.......................................................................................................................................80
Examples....................................................................................................................................80
ipmon and DCA Logging...........................................................................................................81
Troubleshooting Tips............................................................................................................................81
Reporting Problems..............................................................................................................................84
9 HP-UX IPFilter Utilities...................................................................................................85
The ipf Utility........................................................................................................................................85
Syntax..............................................................................................................................................85
Options............................................................................................................................................85
Example...........................................................................................................................................87
The ipnat Utility....................................................................................................................................88
Syntax..............................................................................................................................................88
Options............................................................................................................................................88
Example...........................................................................................................................................88
The ipfilter Utility (HP-UX 11i v3)........................................................................................................89
Syntax..............................................................................................................................................89
Options............................................................................................................................................89
Example...........................................................................................................................................89
10 HP-UX IPFilter and ICMP............................................................................................91
Filtering ICMPv4 Packets by Type and Code (icmp-type and code)....................................................91
Configuring ICMPv4 Kernel Parameters..............................................................................................92
Dead Gateway Detection (ip_ire_gw_probe)..................................................................................93
IPFilter Configuration................................................................................................................93
ICMP Source Quench (ip_send_source_quench)............................................................................93
IPFilter Configuration................................................................................................................93
ICMP Redirects (ip_send_redirects)................................................................................................94
IPFilter Configuration................................................................................................................94
PMTU Discovery (ip_pmtu_strategy).............................................................................................94
IPFilter Configuration................................................................................................................94
ICMP Echo Request Broadcasts (ip_respond_to_echo_broadcast).................................................95
Using ndd to Configure ICMPv4 Kernel Parameters......................................................................95
Filtering ICMPv6 Packets by Type and Code (icmpv6–type and code)...............................................96
Controlling ICMPv6 Router Discovery and Neighbor Discovery Messages.......................................97
Configuring ipf_icmp6_passthru....................................................................................................97
Configuring ipf_icmp6_passthru on HP-UX 11i v2 and HP-UX 11i v3....................................97
Configuring ipf_icmp6_passthru on HP-UX 11i v1...................................................................97
11 HP-UX IPFilter and FTP................................................................................................99
FTP Basics.............................................................................................................................................99
WU-FTPD on HP-UX............................................................................................................................99
Running an FTP Server.......................................................................................................................100
Active FTP......................................................................................................................................100
Passive FTP....................................................................................................................................100
Running an FTP Client........................................................................................................................100
Active FTP......................................................................................................................................100
6 Table of Contents