You can find classification of NAT in RFC 3489 – STUN http://www.faqs.org/rfcs/rfc3489.html. It should not mater what type of firewall you have.

It should work with any type of firewall including Symmetric NAT. Symmetric NAT is performed only by advanced enterprise routers, in that case NATPass™ will recognize this scenario and will make the call succeed by signaling and doing RTP bridging. It is all transparent for the user and there is no need to reconfigure anything.

Currently, Miredo cannot serve as a Teredo client behind a symmetric NAT. However, in preparation for this to eventually become possible, Miredo can accept other clients behind a symmetric NAT (as of version 0.9.8). It's a matter of time before Miredo supports symmetric NATs to a larger extent (however in any case, support for symmetric NATs will never be equal to support for other NATs due to limitations of symmetric NATs).

Yes. WuWu is completely Firewall/NAT compatible! For additional information on this topic, please read the WuWu Firewall / NAT how-to.

In this case, the packets used for IP telephony are intercepted by your router, and you cannot make any phone calls. To solve this problem, try to activate UPnP on both your router and AGEphone (related materials).

Yes, but you will get better performance if other peers can connect to you. By default, BitTorrent listens on port 6881, trying incrementially higher ports if it's unable to bind. It gives up after 6889 (the port range is configurable.) It's up to you to figure out how to poke a hole in your firewall/NAT.

Yes. You must ensure however, that port 3306 is available in order to permit connection to your remote mySQL server. Network Address Translation boxes are not a problem. Non-translating proxies might be however - contact your systems administrator if you are operating under a proxy to ensure that packets will be properly routed.

Yes, the InfoGate 3020 can work behind a firewall or NAT, by opening the following ports: TCP/IP: 8481 UDP: 6024, 6026, 6028 & 6030 UDP: 1588 for InnoSphere

Incoming traffic is usually accomplished by simple port-forwarding, with certain types (fragmented, for example) of traffic filtered out. Although ports can be forwarded to other internal IP addresses, this isn't generally referred to as NAT, which includes port-remapping as well as forwarding.

For most routers, yes. The service is designed to work behind a NAT router and you should be able to just plug in and go, assuming your router is handling DHCP services. In addition, there is an excellent network connection troubleshooter built into the XBL front-end. You can configure your Xbox with a static IP if required, you can manually set various network settings, and you can even have the Xbox spoof a certain MAC address if required by your ISP.

This depends upon how your firewall / NAT server is configured. Please ask your network administrator if your firewall (or NAT server) is configured to allow PING and TRACERT to work (which use ICMP ECHO, ECHO REPLY, and TTL EXPIRED packets). You can test this yourself by running these programs on your computer (For example, try "tracert www.visualware.com"). If these programs work, VisualRoute should work just fine on your computer.

A NAT is often used between private networks (like those used at home or at work) and the Internet to map a private IP address to a public IP address. Routers and software gateways (such as Internet Connection Sharing in Windows) usually also function as NATs. Firewalls, on the other hand, filter access to protected networks. Netphone2phone works with most NATs and firewalls without any additional setup.

Yes, you can use a "Broadband" router in your location. There many versions available at most electronic stores, from wireless versions to hard-wired.

Think of eBLVD as you think of accessing secure 128-bit SSL web pages. A sophisticated hacker could intercept your web session but would only see encrypted data. The hacker would need to decode each individual stream of data and reassemble it to be able to view the data. This is virtually impossible.

Outgoing SSTP connection can pass through any kind of NAT and firewalls - as long as TCP port 443 is allowed (which is normally the case). If the VPN client is behind a web proxy, then outgoing SSTP connection can go through in normal web proxy. SSTP does not support "authenticated" web proxies (i.e. proxies which require some form of authentication during HTTP CONNECT request).

Network Address Translation. NAT is a technology which allows your privately addressed network to connect to the public Internet. For example: Web Shuttle will dial-up to ISP, establish a PPP connection and get a public IP address (legal IP address) from the ISP when one user on the private network requests a web page. When a web server returns a web page, the web shuttle converts the public IP address to the private IP address of the PC.