It wont.
On 07/05/2011 12:53 PM, Roman Gelfand wrote:
Are you saying that port 30400, in this case, will not change for the
life of this call?
On Mon, Jul 4, 2011 at 9:20 PM, Joegen Baclor <jbac...@ezuce.com
<mailto:jbac...@ezuce.com>> wrote:
Here is what is happening based on the pcap you sent.
1. Your soft phone (XLITE) sends an INVITE with private IP and
port 59926. offered in SDP.
2. Karoo Bridge sends the offer to sipX via the internal interface.
3. destination starts sending RTP packets.
4. Karoo relays the packets to your Softphone public address on
port 59926 (Take note that this port may change as soon as a first
RTP packet is received from XLite).
Karoo local port is 30400. the same port given in SDP answer.
5. Xlite sends first RTP packet (Datagram #149 in pcap) from port
24705
6. Firewall or whatever beast running on your edge device blocks
the packet and responding with an ICMP error.
Item number 5 (if it successfully makes it to Karoo) would have
completed the far-end-nat traversal requirements and everyone
lives happily ever after. I think your edge device tries to map
port 30400->59926 permanently and packets coming from a different
port going to 30400 are automatically blocked. Defintely a bad
situation for far-end-nat.
On 07/05/2011 04:35 AM, Roman Gelfand wrote:
Hi Joegen,
After trying to analyze this with my limitted knowledge, I am
running into a wall.
I had, since, taken away the firewall between wan and Karoo
Bridge. The symptoms are the same. I have generated a tcpdump
and was wondering if you see a problem. I have attached the tcpdump.
Thanks,
Roman
On Sun, Jul 3, 2011 at 11:49 AM, Joegen Baclor <jbac...@ezuce.com
<mailto:jbac...@ezuce.com>> wrote:
Karoo or which ever application binding to a UDP port is
beyond ICMP. The rule is if you see an error which says
ICMP error, the culprit is always a firewall app or an
application talking directly to the kernel. I am going to be
a bit unhelpful here but the only thing I could advice is to
make sure your firewall is not getting in the way.
On 07/03/2011 08:02 PM, Roman Gelfand wrote:
I had since put a sniffer on my firewall and this was the result
146.939239 [my firewall wan ip] -> [remote client's firewall
wan ip]: icmp: [my firewall wan ip] udp port 30944 unreachable
On Sun, Jul 3, 2011 at 7:06 AM, Roman Gelfand
<rgelfa...@gmail.com <mailto:rgelfa...@gmail.com>> wrote:
also, If I call pstn number from x-lite, it works.
On Sun, Jul 3, 2011 at 6:47 AM, Roman Gelfand
<rgelfa...@gmail.com <mailto:rgelfa...@gmail.com>> wrote:
The firewall on the pc is off.
On Sun, Jul 3, 2011 at 5:28 AM, Tony Graziano
<tgrazi...@myitdepartment.net
<mailto:tgrazi...@myitdepartment.net>> wrote:
is there a firewall on the pc? if so does it
have icmp blocked?
On Jul 3, 2011 1:26 AM, "Roman Gelfand"
<rgelfa...@gmail.com
<mailto:rgelfa...@gmail.com>> wrote:
> I am using x-lite softphone to register to
SIPX via Karoo Bridge over WAN.
> There is a firewall (transparent mode) between
Karoo Bridge and WAN There
> is a firewall betweet x-lite and WAN. The
registration to sipx is
> successfull. Calls from within sipx's local
network to the x-lite softphone
> are successfull. Calls from x-lite softphone
to sipx's local network die on
> invite. After looking at tcpdump, I found a
message stating
>
> 15618 38.709230 "src IP" "dst IP" ICMP
Destination unreachable (Port
> unreachable)
>
> I suppose that this is the problem.
>
> What I am not sure about is src IP or dst IP
is unreachable?
>
>
> Thanks in advance
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