nat

问题 I have some software running on port 50885 on a computer behind a NAT How can I access this port from the internet? I can initiate something from the computer as I have to launch the app. If I get it correctly : with my local address:port, lets say : 192.168.0.10:50885 If something goes trough the NAT initiated by the computer, Then there should be some sort of port forwarding created automatically and there should be some sort of publicly IP:PORT that should knock on the 50885 port on the

问题 My question is the same as this one but hopefully adds clarity to get an answer. After reading this fantastic article on the specifics behind NAT Traversal along with a general summary of methods found here, I'm wondering if the scenario has been accomplished or is possible. I'm writing software that serves web pages on any specified port, and am wondering if it is possible to have a web client from the WAN side connect to this server that is behind a NAT router. The reason this I'm finding

问题 My question is the same as this one but hopefully adds clarity to get an answer. After reading this fantastic article on the specifics behind NAT Traversal along with a general summary of methods found here, I'm wondering if the scenario has been accomplished or is possible. I'm writing software that serves web pages on any specified port, and am wondering if it is possible to have a web client from the WAN side connect to this server that is behind a NAT router. The reason this I'm finding

问题 I am running FILE-Zilla ftp server on windows in one of the LAN pc connect to my router. i am trying to access the FTP server from the network outside of the router using Router WAN ip (WAN-to-LAN) by adding Port-Forwarding rule (NAT) in the router. I have 2 cases here as per below configurations. the 1st is working and the 2nd is not (in Passive mode). Note: i have added the custom inbound rule in the windows 7 firewall where the ftp server is running. Configuration #1 Filezilla FTP server

问题 I'm making a game in C# and I want to display the progress (movements and so on) of opponent. So I send events in game via TCP protocol to opponent. I've already tried my application on localhost and it works but when I try to use my external address in order to communicate over the internet I get the error below in class TcpInformer.Connect(): a connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because

问题 I have a server with public Ip Address and a client machine behind NAT which are implemented in C# language. I've tried to program a tcp hole punching but got error when made socket from server to client. My steps are as below: 1) 1st, I make a socket connection to Public Server and send msg to it and started listening on port 17000 2) 2nd, Server got the msg and parse it 3) 3rd, I got the remoteEndPoint IpAddress & port number ( =Nat router Ip & Port ) on the server side 4) 4th try to

问题 I'm trying simple port forwarding with VirtualBox and it appears VirtualBox.exe is listening on the host to the port, but not actually forwarding the connection to the guest. I've tried on multiple ports, and I've restarted VirtualBox several times. Guest to host connectivity, on the other hand, is fine. Here's the info: Host: Win7 x64 Guest: Win7 x64 VirtualBox version: VirtualBox 4.2.10 Firewalls: All firewalls on host and guest disabled. Virtual Box > Machine Settings > Network Adapter 1:

问题 If I have two internal computers connecting to the same external IP address through a NAT router, how is the router able to get the traffic to the correct internal computer? It is my understanding that NAT forwards incoming packets to the computer that recently sent outgoing packets to the [incoming packet's] sender's IP address. Since both computers are sending to the same address, does the router forward the packet to both? If that is the case, is it the responsibility of the client

问题 I have a couple of Centos 6 VMs that I am trying to setup. I assigned static IPs to them but when running ifconfig, I do not see the external IPs, just the internal IPs. Does Google not allow this capability? 回答1: In addition to what Anderson said, this is the command to query for the external IP from the instance itself: curl "http://metadata.google.internal/computeMetadata/v1/instance/network-interfaces/0/access-configs/0/external-ip" -H "Metadata-Flavor: Google" 回答2: DHCP only supports

问题 I have downloaded and compiled vanilla linux kernel (3.7.1) I used busybox for ramdisk then I booted it using QEMU. This is my QEMU command line qemu-system-i386 -kernel bzImage -initrd ramdisk.img -append "root=/dev/ram rw console=ttyS0 rdinit=/bin/ash" -nographic -net nic -net user everything goes well. However, I can't use networking on vanilla kernel with busybox. 'ifup eth0' tells me / # ifup eth0 ip: SIOCGIFFLAGS: No such device I googled the Internet but can' get any clue... some