firewall for AIX (similar to iptables for linux)

Posted on 2011-09-05
Last Modified: 2013-11-17
Is Ipsec the firewall for AIX boxes?
Can I install a simpler firewall on AIX?

I took a look to ipsec and it's very difficult for me... it hasn't simples rules as iptables for linux..

Where can I find a minimun steps by steps to, activate ipsec, load rules for blocking/unblocking TPC and UDp ports and disable ipsec?

Question by:sminfo
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LVL 68

Accepted Solution

woolmilkporc earned 500 total points
ID: 36483404
Hi again,

as far as I know there is no firewall for AIX out there, except for IPSEC and IPFILTER (IPFL) which are shipped with AIX.

In former days there was an iptables based AIX firewall (SecureWays) from IBM, but this one has been retired and never reached AIX 5.

This old redbook mentions, apart from SecureWays, the Checkpoint Firewall-1, but I'm rather sure that this product isn't available anymore either.

Remains IPSEC and IPFL. IPSEC is in, and IPFL is in ipfl.rte from the expansion DVD.

IPFL is based on the Open Source Software called IPFilter, so you might want to look at its documentation, which is here:

Here is a tiny FAQ:

and here are the original docs:

containing a HOWTO:

Finally, here is the whole IPSEC stuff:

Good luck!



Author Comment

ID: 36483866
Umm I see wmp... I believe IPF is what I'm looking for.. I heard about IPFilter in my beginnings with Tru64 UNIX, but never used at that time.

One more question.. the DVD expansion is the same for AIX 7.1 or 6.1 or 5.3?

LVL 68

Assisted Solution

woolmilkporc earned 500 total points
ID: 36483928
AIX 5 and AIX 6 are shipped with their own Expansion Packs, respectively.

AIX 7 doesn't come with such a DVD, for which reasons ever, although there is a Pack available.

If you have an ESS entitlement you can download a TGZ file here:

Anyway, the newest IPFL version available for AIX is 4.1.13, and I strongly assume that this same version is contained on the AIX 5 as well as on the AIX 6 or 7 Packs.


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Author Closing Comment

ID: 36484024
Yes wmp.. I installed ipfilter from AIX 7.1 expansion

[root@testaix:/] lslpp -l|grep ipf     COMMITTED  IP Filters Documentation -
  ipfl.rte           COMMITTED  IP Filters

Now, I'll read abour it.. I have worked a lot with iptables, so I think it should be easier for me..

LVL 68

Expert Comment

ID: 36484033
Ok, I just checked ...

The ipfl.rte installp package version is always on all available Expansion Packs (starting with AIX 5.3 TL 7 or so),
and this package always contains IPFilter 4.1.13 as of end 2001.

So no need to care about which pack to use.

Thx for the points!


Author Comment

ID: 36484051
umm.. how can you check that version 4.1.13?

I saw also ipfilter is on version 5.1,  can I compile it on AIX?
LVL 68

Expert Comment

ID: 36484116
ipf -V

Compiling? Never tried it, could become an interesting project ...

Joke aside, I think it should be possible to compile it, given you have GCC, gmake and all that.

But as I said - never tried it.


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