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<div class="moz-cite-prefix">Ah, so presumably the OP doesn't have
(for example) SIP handsets registered to his box (presumably
that's done on port 5060, too)<br>
</div>
<blockquote
cite="mid:CAMbW9o+xoa1sX3Vf1zY4K0kx5LR2ds_MY2Y_eSLN-=u3E6ML4A@mail.gmail.com"
type="cite">Only if you don't know what IP addresses calls are
going to be coming from. In this case, we can probably ask the
provider what their IP addresses are and just explicitly allow
them.
<div><br>
</div>
<div>All fail2ban does is check the log files then set up relevant
firewall blacklist rules, so for the same job you get slightly
more CPU load too.<br>
<br>
<div class="gmail_quote">On 13 March 2013 10:28, Alex Lake <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:alex@digitalmail.com" target="_blank">alex@digitalmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
Isn't fail2ban the usual solution here?<br>
<div>
<div class="h5">> Hello. I hope someone can quickly see
what I want to do and steer me in the right direction.<br>
><br>
> I've looked at the documentation for acl.conf.xml
and the SIP profile config file external.xml. I want to
block incoming calls from all but a single external IP
address and I'm sorry I just can't figure out how to do
it or even if it can be done.<br>
><br>
> We have a SIP trunk service with our VOIP provider.
That means we have a static IP address which they use
when they forward calls to us. They don't need to
register, we just accept their calls but of course they
have to be to our destination phone number. That all
works and we have been very happy with Freeswitch for I
don't know well over a year.<br>
><br>
> Recently I became aware that someone is hammering
our system trying to make calls. Our provider will only
use port 5060 so that does mean our system is sitting on
the internet with port 5060 open. Our dial plan works
correctly and I can see in the log these calls are going
nowhere. But they can be every few seconds and I suspect
they might be using a lot of bandwidth just hammering
the system.<br>
><br>
> We will never receive calls from any other address
than the one our VOIP provider will use to call us. So I
just want to block SIP traffic from all addresses except
theirs. I just want Freeswitch to stay silent when a
call comes in on any other address, so there is no
evidence that it is there to be attacked.<br>
><br>
> I know I can do this with a firewall but I hope I
can do it in Freeswitch itself. I am confused about the
parameters auth-calls and auth-call and how to apply an
access list that would restrict all calls to just one IP
address. I did read somewhere in the docs that if you
want to block calls you need to use a firewall and maybe
that's the answer and so be it. Still I hope I can do it
with Freeswitch so I can just apply the right ACL and
sort the problem without creating new problems by
introducing a firewall.<br>
><br>
> Hope you can help.<br>
><br>
><br>
> Clive Lansink<br>
> Email: <a moz-do-not-send="true"
href="mailto:Clive@Lansink.Co.NZ">Clive@Lansink.Co.NZ</a><br>
> Phone: <a moz-do-not-send="true"
href="tel:%2B64%209%20520-4242" value="+6495204242">+64
9 520-4242</a><br>
> Mobile: <a moz-do-not-send="true"
href="tel:%2B64%2021%20663-999" value="+6421663999">+64
21 663-999</a><br>
> Fax: <a moz-do-not-send="true"
href="tel:%2B64%2021%20789-150" value="+6421789150">+64
21 789-150</a><br>
><br>
>
_________________________________________________________________________<br>
> Professional FreeSWITCH Consulting Services:<br>
> <a moz-do-not-send="true"
href="mailto:consulting@freeswitch.org">consulting@freeswitch.org</a><br>
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href="http://www.freeswitchsolutions.com"
target="_blank">http://www.freeswitchsolutions.com</a><br>
><br>
> FreeSWITCH-powered IP PBX: The CudaTel
Communication Server<br>
> <a moz-do-not-send="true"
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> -----<br>
> No virus found in this message.<br>
> Checked by AVG - <a moz-do-not-send="true"
href="http://www.avg.com" target="_blank">www.avg.com</a><br>
> Version: 2012.0.2240 / Virus Database: 2641/5668 -
Release Date: 03/12/13<br>
<div class="HOEnZb">
<div class="h5">><br>
><br>
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</blockquote>
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-- <br>
<b>Andrew Cassidy BSc (Hons) MBCS SSCA</b>
<div>Managing Director
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<br>
<pre wrap="">_________________________________________________________________________
Professional FreeSWITCH Consulting Services:
<a class="moz-txt-link-abbreviated" href="mailto:consulting@freeswitch.org">consulting@freeswitch.org</a>
<a class="moz-txt-link-freetext" href="http://www.freeswitchsolutions.com">http://www.freeswitchsolutions.com</a>
FreeSWITCH-powered IP PBX: The CudaTel Communication Server
<a class="moz-txt-link-freetext" href="http://www.cudatel.com">http://www.cudatel.com</a>
Official FreeSWITCH Sites
<a class="moz-txt-link-freetext" href="http://www.freeswitch.org">http://www.freeswitch.org</a>
<a class="moz-txt-link-freetext" href="http://wiki.freeswitch.org">http://wiki.freeswitch.org</a>
<a class="moz-txt-link-freetext" href="http://www.cluecon.com">http://www.cluecon.com</a>
FreeSWITCH-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</a>
<a class="moz-txt-link-freetext" href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a>
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<a class="moz-txt-link-freetext" href="http://www.freeswitch.org">http://www.freeswitch.org</a>
</pre>
<br>
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<br>
<p class="" avgcert""="" color="#000000" align="left">No virus
found in this message.<br>
Checked by AVG - <a moz-do-not-send="true"
href="http://www.avg.com">www.avg.com</a><br>
Version: 2012.0.2240 / Virus Database: 2641/5668 - Release Date:
03/12/13</p>
</blockquote>
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