problem receiving calls from outside lan...

[mia_tech]

after setting up asterisk, and forwarding proper ports, I'm able to make calls to the outside, but not receiving calls, I have forwarded ports 5060-5082 tcp and 8000-20000 udp....I've also enter the settings for nat in the sip.conf file:
port = 5060
bindaddr = 0.0.0.0
context = others
allowguest = yes
srvlookup=yes
nat=yes
externip = mydnsname.org
localnet = 10.200.50.0/24
fromdomain = mydnsname.org
qualify=yes
canreinvite=no

yet I'm not able to receive calls.... any help appreciated

thanks
http://www.pcteckonline.org

[rizsher]

I've got the following in my sip_nat.conf

port = 5060 ; Port to bind to (SIP is 5060)
bindaddr = 0.0.0.0 ; Address to bind to (all addresses on machine)
externhost = my.dyndnsaddress
externrefresh = 5
localnet=192.168.1.1/255.255.255.0
nat=yes
defaultexpirey=500

The Externrefresh line is important if you have a dynamic IP referenced by dynamic dns and I guess you'll need to modify the localnet setting to suit your network. I've forwarded the following ports:

10000-10100 (defined rtpstat and end in rtp.conf as 10000 and 10100)
5060-5065
and 4569

Both UDP and RTP as I'm not really sure whether they're supposed to be UDP or RTP!!!.. works fine for me.

[mia_tech]

I've modify my sip_nat.conf file as you specified, and also forwarded tcp and udp ports just to be sure, and still can't receive calls from outside.....more over when I make a call the internal ip of my computers is showing in the receiving end, is this normal?

any help appreciated

thanks
http://www.pcteckonline.org

[rizsher]

You need to give more information... whats ur setup...wot version of */FreePBX, what do u actually mean by "cant' receive incoming calls"... do anything show up in Asterisk cLI when u get a call.. .is the trunk you're expecting to receive the call on shoing in CLI as registered (sip show registry), have you got a catch all AnyDID/AnyCID inbound route setup?.

[mia_tech]

Originally Posted by rizsher

You need to give more information... whats ur setup...wot version of */FreePBX, what do u actually mean by "cant' receive incoming calls"... do anything show up in Asterisk cLI when u get a call.. .is the trunk you're expecting to receive the call on shoing in CLI as registered (sip show registry), have you got a catch all AnyDID/AnyCID inbound route setup?.

Thanks for your help... well let me start by saying that I'm relatively new to asterisk although I have a good grasp on networking/computers. My setup is really simple I have an asterisk version 1.4.10 running on ubuntu 7.10, installed through synaptic, and here's how I'm testing my asterisk setup. I'm behind an ipcop firewall forwarding lots of ports now lol 5060-5080 (tcp/udp), 8000-10000(tcp/udp) and 4569 (tcp/udp), what I do, I use my laptop and login to the internet with dialup and use my ekiga account to make and receive calls from my network, I've been able to make calls from my network to my ekiga account (laptop outside network), but when I call from my ekiga account(outside network) to the inside of my network, nothing happens on asterisk.... right now I'm using no-ip.com to do my dns mapping, my dns A host record is pcteck.no-ip.org....when I dial into my network I use the extension 2000 + pcteck.no-ip.org like this 2000@pcteck.no-ip.org, but like I said before nothing happens, when I register into my network from the outside using my own extension, in that case I'm able to receive and make calls from outside, but what fun is that I want to make and receive calls from other ppl in other network, as far as what you mean by AnyDID/AnyCID ... don't know what that is maybe I'm missing a setting or something in my asterisk setup...and regarding a trunk to receive a call ... I thought that I should be able to call anyone even when they are not registered in my pbx...
hope I made a good explanation of my setup

thanks
http://www.pcteckonline.org

[rizsher]

I operate at a fairly low level when it comes to Asterisk... seems like you've gone for a command line approach to setting up Asterisk - not the easiest things.

Suggest you have alook at www.nerdvittles.com and their PBXinAFlash ISo, which installs everything you need for a working * setup on one CD, downside, it does need a dedicated PC to run on, and will wipe off EVERYTHING on every hard disk in that machine during installation - but once done, its a really simple thing to configure.

If that is not an option for you, then see if you can install FreePBX (www.freepbx.org) on your computer. This will give you a web-based GUI to do ALL your configuration.

I really don't know enough about Asterisk to help you without FreePBX.

However, I understand to receive incoming calls, you NEED to have an "inbound Route" setup which decides how an incoming call is handled (sent to an Extension, or a Voicemail box, or an IVR etc etc) - again, odn't know how this is done thru the command line, but FreePBX will make it a matter of 2 clicks.

[mia_tech]

well I've decided to see what was going on at the packet level at my eth0 interface on my pbx and I think the asterisk server is having problem translating the 2000@pcteck.no-ip.org to the private ip, it seems to me is a nat issue, I could be wrong....here's the capture

[IMG]http://www.pcteckonline.org/*_bad.png[/IMG]

if anyone is interested in taking a look at the capture file can be downloaded from here

http://www.pcteckonline.org/*_bad

any help appreciated thanks

[mia_tech]

Originally Posted by rizsher

I've got the following in my sip_nat.conf

port = 5060 ; Port to bind to (SIP is 5060)
bindaddr = 0.0.0.0 ; Address to bind to (all addresses on machine)
externhost = my.dyndnsaddress
externrefresh = 5
localnet=192.168.1.1/255.255.255.0
nat=yes
defaultexpirey=500

The Externrefresh line is important if you have a dynamic IP referenced by dynamic dns and I guess you'll need to modify the localnet setting to suit your network. I've forwarded the following ports:

10000-10100 (defined rtpstat and end in rtp.conf as 10000 and 10100)
5060-5065
and 4569

Both UDP and RTP as I'm not really sure whether they're supposed to be UDP or RTP!!!.. works fine for me.

what do you mean by opening RTP ports?... with firewall you can only open either TCP or UDP ports

thanks
http://www.pcteckonline.org

[rizsher]

That could be a "feature" of IPCop... I tried PfSense, m0n0wall and IPCop on a spare PC moons ago, never had any success with getting my Asterisk server to work... on a standard router, atleast ones with DD-WRT or Tomato firware, in port forwarding, there are 3 options, TCP, UDP and BOTH.

[mia_tech]

Originally Posted by rizsher

That could be a "feature" of IPCop... I tried PfSense, m0n0wall and IPCop on a spare PC moons ago, never had any success with getting my Asterisk server to work... on a standard router, atleast ones with DD-WRT or Tomato firware, in port forwarding, there are 3 options, TCP, UDP and BOTH.

I suspected of my ipcop firewall might be blocking outbound connection and connected my asterisk box directly to my dsl modem, with the same results...still not able to receive any calls...


thanks
http://www.pcteckonline.org