On 08/29/2018 09:42 AM, Carlos Rojas wrote:
Hi
Probably somebody is trying to hack your system, you should block that
ip on your firewall.
Regards
On Wed, Aug 29, 2018 at 9:34 AM, sean darcy <seandar...@gmail.com
<mailto:seandar...@gmail.com>> wrote:
I'm getting invites to very high ports every 30 seconds from a
particular ip address:
Retransmitting #10 (NAT) to 5.199.133.128:52734
<http://5.199.133.128:52734>:
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP
0.0.0.0:52734;branch=z9hG4bK1207255353;received=5.199.133.128;rport=52734
From: <sip:37120116780191250@67.80.191.250
<mailto:sip%3A37120116780191250@67.80.191.250>>;tag=1872048972
To: <sip:3712011972592181418@67.80.191.250
<mailto:sip%3A3712011972592181418@67.80.191.250>>;tag=as3a52e748
Call-ID: 1504207870-295758084-609228182
CSeq: 1 INVITE
.......
WARNING[150318]: chan_sip.c:4127 retrans_pkt: Timeout on
1504207870-295758084-609228182...
I thought invites had to go to port 5060 or so. I don't understand
why somebody (let's assume a bad guy) is trying ports above 50000.
sean
Ok, so the high port is not the destination port but the source port.
So I hacked the log warning in chan_sip.c on non-critical invites to
show the source ip:
ast_log(LOG_WARNING, "Timeout on %s non-critic invite trans from %s.\n",
pkt->owner->callid,ast_sockaddr_stringify(sip_real_dst(pkt->owner)));
With that in the log, I'm now blocking the ip addresses.
Thanks,
sean
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