similar to: SIP + NAT Howto?

Quick question re. NAT traversal. I understand how sitting behind a NAT could cause problems for a SIP UA. The SIP UA would create SIP mesages using IP addresses from inside the network (i.e. 192.#.#.# or 10.#.#.#) and these IP addresses are of course unnavigable for the recipient. What I don't get is why don't web browsers suffer the same problem? A web brower behind a NAT sends an

Ok.. I got * and SIP working internally now .. still wrestling with connecting two remote * pbx's together.. I'll save that for another day though :) I setup Meetme on this new * PBX, but when I try to dial to join the conference, I hear a recording saying the conference is invalid or something to that effect. Here's a copy of my log files: == Parsing

All, I have my * box NAT'd with all ports forwarded that are SIP related (based on Wiki). I also have nat=yes, externalip=WAN address of firewall, internalip=LAN network of *. I have my Xten soft phone on a PC which is NAT'd behind firewall with ports forwarded. I have also followed instructions on Wiki for Xten. I can authenticate fine, and sip show peers shows my extension is OK,

I am trying to get a SPA-3000 to work behind NAT - for the sake of the exercice. The SPA is on the local network at the address 192.168.0.125 behind a NATted linux router. The machine I am trying to work with is a friend's (let's call it lolo.dyndns.org) and I've installed Asterisk 1.0.3 on it. I can see the SPA register but when I try to make an outbound call I get the message:

Guys. Im writing this because Ive checked the wiki, Xten website and read a lot of docs and still cant figure out a way around the NAT issues. Maybe somebody else can give me some ideas from a fresh perpective. My test setup is this: Asterisk -> 2wire homeportal Firewall -> internet Computer with Xten eyebeam The asterisk box and the computer with xten beam are behind the same

Hi, after reading about it on the list I decided to set up a Free World Dialup account. For those of you who don't know, that is a sip proxy where you and your friends can singn up free and then you can just connect to it with any sip client and call anybody that is registered for free. Pretty much like iaxtel (I belive that was the name of it) for the iax protocol. It even supports clients

Has anyone tried installing * on a box with two eth interfaces which is acting as a NAT box? I have only one IP at this point and I would like to get * working without all of the NAT issues. My idea is to run * on my gateway (which is also running the firewall and masquerade services). All of my UAs (Grandstream + Xten X-LITE + gnophone) will be inside the NAT screen, and will connect to the *

Hi All, born out of frustration with conflicting info on the net, I thought I'd share a simple guide to set up the port forwarding side of masquerading... this presumes you already have basic ipchains setup and simple masquerading of internal machines installed. PORT FORWARDING USING IPMASQADM. “Ipmasqadm” supercedes the “ipportfw” feature. 1 - Upgrade to Kernel 2.2.12-20 if not already

Hi guies, I know I know this subject have been The most written subject about VoIP Right... but I just want to make clear, just one time ! If Asterisk is on a Public IP Address and a softphone behind the nat, sip.conf must contains for this phone: nat=yes .... Now if I want to configure my sipphone (X-Lite) placing behing the NAT, it must have in "Domain/Realm" the external IP

This may be a newbie SIP/NAT question. If so I am sorry. But any help would be appreciated. My Asterisk server is behind an ipchains box and I am trying to connect to Broadvoice. All works fine without the NAT. I have a global nat=yes prior to my register, but the sip debug allows shows "no nat)". Is this "label" issue, and am I barking up the wrong tree? Sip.conf....

I have 2 SIP phones (Cisco 7960 & XTen) behind a NAT provided by a Linksys firewall that supports UPnP. The Asterisk server has a public IP. Here are the problems that I am having with this configuration... 1. The 2 SIP phones can call MeetMe and have a conference but cannot call each other. (Yes, they connect but no audio either direction) 2. I have verify=yes in the sip.conf for both

I have tried to replace these lines from ipchains to work with shorewall. # /NFS requires 111/tcp (sunrpc/portmapper) and *all* UDP ports./ # ipchains -A input -p tcp -s $SUBNET -i eth0 -d 0/0 111 -j ACCEPT ipchains -A input -p udp -s $SUBNET -i eth0 -d 0/0 -j ACCEPT # /These ports are required by bootp, tftpd, and PXE./ # /There are also a handful of udp ports that need to/ # /be open,

Hi all! I try to make port based routing, because a have two connections to the internet. My router is a "one disk floppy router for linux". It is a big router project www.fli4l.de. I try also to make a opt, it is like a plugin for this router. This project uses Kernel 2.2.19 compiled with libc5 (because it is small and you can use one floppy disk). At the moment, iproute2 is not

I've just tried setting up a Shrike (9) version of Redhat. Using the medium settings of lokkit, then adding manually accept commands for ports 137/udp 138/udp, 139/tcp and 445/tcp, I thought I should have been ready to go. This isn't the case, however. I know it's not the smb.conf settup because when I kill iptables samba works. When iptables IS running however, it will respond

Can anyone tell me what the absolute minimally permissive ipchains rule would be to allow tinc to operate correctly between two hosts. If we were to presume each tinc host had a default-deny policy, what ipchains command(s) would allow tinc to do its thing? I've scanned the docs on the tinc site and not found the answer- sorry if I'm blind or dumb. Thanks, Patrick - Tinc:

I have a little home network with one Windows 98 PC and a pc running linux. My idea is that as soon as DSL is finally made available to my area (which I keep getting told will be real soon now) I want to route it through the linux box and up to the Windows PC, using IP masquerading, etc. At present I have samba enabled on the unix box which opens up several worthwhile conveniences to me:

Greetings all- My apologies for the slightly OT post. My primary production platform *IS* CentOS 5.x with a minor scattering of 4.x machines behind firewalls here and there... I find that I'm being placed more and more into a 'quasi-developer' role which strays some from my normal system/network admin duties. Specifically, having to work with the deep internals of make, autoconf,

Dear R users, even if this question is not related to an issue about R, probably some of you will be able to help me. I have a square matrix of dimension k by k with alpha on the diagonal and beta everywhee else. This symmetric matrix is called symmetric compound matrix and has the form a( I + cJ), where I is the k by k identity matrix J is the k by k matrix of all ones a = alpha - beta c =

I have a couple questions that I will submit separately. When I have IPchains running I can't get my samba box to show up in network neighborhood, but when I turn ipchains off the box shows up. What rules do I need to add for things to work properly? -- Raymond Norton Little Crow Telemedia Network 320-234-0270

Hi all, Seriously, I've tried to read everything I could find (& search for) on voip-info.org and other sites about this problem, but have been unsuccesful. Equipment: xten lite X100P Whitebox linux running Asterisk / AMP D-Link DI-804HV (VPN router) I have installed another DI-804HV at a second location and created a tunnel. For the computers behind that unit, everything works fine