12 Oct
2021
12 Oct
'21
4:39 p.m.
Hello,
you can surely just add the original IP to an X-Header in Kamailio.
Have a look to the pseudo-variables (e.g. incoming IP address) and textops module,
append_hf function for example.
Cheers,
Henning
--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://gilawa.com
-----Original Message-----
From: sr-users <sr-users-bounces(a)lists.kamailio.org> On Behalf Of Mihai Cezar
Sent: Tuesday, October 12, 2021 10:10 PM
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
Subject: Re: [SR-Users] Kamailio Inbound proxy to Asterisk - ACL Filtering
But is there something that I can do in kamailio to send the original IP to an asterisk
server like in http with the XFF header?
On Mon, Oct 11, 2021 at 1:29 AM David Villasmil <david.villasmil.work(a)gmail.com>
wrote:
Hello, this is really an Asterisk question.
Here in Kamailio we'd recommend you do that filtering at the proxy level, using the
"permissions" module.
Regards,
David Villasmil
email: david.villasmil.work(a)gmail.com
phone: +34669448337
On Sun, Oct 10, 2021 at 6:52 PM Mihai Cezar <cezar(a)mokalife.ro> wrote:
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Hi,
The last matching rule is the one used. If no rule matches, then the
connection is permitted.
Example:
deny=0.0.0.0/0.0.0.0
permit=1.2.3.4/32
Deny every address except for the only one allowed.
Basically the rules are processed from the first to the last.
On Sat, Oct 9, 2021 at 3:26 PM Bugaian A. Vitalie <bugaian(a)gmail.com> wrote:
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Hi,
I think its the order you apply the ACL, first permit some, then deny any?
Vitalie.
On Sat, Oct 9, 2021 at 1:58 PM Mihai Cezar <cezar(a)mokalife.ro> wrote:
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Hello,
I have an issue with filtering on the asterisk side, my requests are:
UsersPhones(bria) -> Kamailio -> Asterisk -> Sip Trunk Out.
The goal is to manage a new layer of protection ( IP filtering / Whitelisting ).
When I try to compile a list of Whitelisted IP in sip.conf I get this error:
NOTICE[205]: acl.c:748 ast_apply_acl: SIP contact ACL: Rejecting
'145.72.23.45' due to a failure to pass ACL '(BASELINE)'
WARNING[205]: chan_sip.c:17061 parse_register_contact: Domain
'5.12.16.2:48669' disallowed by contact ACL (violating IP
145.72.23.45)
WARNING[205]: chan_sip.c:17933 register_verify: Registration
denied because of contact ACL
The IP 145.72.23.45, is the proxy kamailio and if I added it to
sip.conf it works, but so does every ip afterwards.
I tried with contactpermit also with permit, the result is the
same as long as I permit the proxy ip it works. Is there something
that I can do on the asterisk side to activate this filtering Or
there is something that I can do in Kamailio so it will forward the realip ?
contactdeny=0.0.0.0/0.0.0.0
contactpermit=145.72.23.45/32
contactpermit=5.12.16.2/32
Thanks in advance,
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