3 (1) AIX 4.x's version of BPF is undocumented and somewhat unstandard; the
4 current BPF support code includes changes that should work around
5 that; it appears to compile and work on at least one AIX 4.3.3
8 Note that the BPF driver and the "/dev/bpf" devices might not exist
9 on your machine; AIX's tcpdump loads the driver and creates the
10 devices if they don't already exist. Our libpcap should do the
11 same, and the configure script should detect that it's on an AIX
12 system and choose BPF even if the devices aren't there.
14 (2) If libpcap doesn't compile on your machine when configured to use
15 BPF, or if the workarounds fail to make it work correctly, you
16 should send to tcpdump-workers@tcpdump.org a detailed bug report (if
17 the compile fails, send us the compile error messages; if it
18 compiles but fails to work correctly, send us as detailed as
19 possible a description of the symptoms, including indications of the
20 network link-layer type being wrong or time stamps being wrong).
22 If you fix the problems yourself, please send to patches@tcpdump.org
23 a patch, so we can incorporate them into the next release.
25 If you don't fix the problems yourself, you can, as a workaround,
26 make libpcap use DLPI instead of BPF.
28 This can be done by specifying the flag:
32 to the "configure" script for libpcap.
36 (1) It is a good idea to have the latest version of the DLPI driver on
37 your system, since certain versions may be buggy and cause your AIX
38 system to crash. DLPI is included in the fileset bos.rte.tty. I
39 found that the DLPI driver that came with AIX 4.3.2 was buggy, and
40 had to upgrade to bos.rte.tty 4.3.2.4:
44 bos.rte.tty 4.3.2.4 COMMITTED Base TTY Support and Commands
46 Updates for AIX filesets can be obtained from:
47 ftp://service.software.ibm.com/aix/fixes/
49 These updates can be installed with the smit program.
51 (2) After compiling libpcap, you need to make sure that the DLPI driver
60 then the DLPI driver is loaded correctly.
66 Then you need to type:
68 strload -f /etc/dlpi.conf
70 Check again with strload -q -d dlpi that the dlpi driver is loaded.
72 Alternatively, you can uncomment the lines for DLPI in
73 /etc/pse.conf and reboot the machine; this way DLPI will always
74 be loaded when you boot your system.
76 (3) There appears to be a problem in the DLPI code in some versions of
77 AIX, causing a warning about DL_PROMISC_MULTI failing; this might
78 be responsible for DLPI not being able to capture outgoing packets.