set the ICMP protocol

function out ways to know whether or not the firewall? The simplest way is on one more device on the use of xscan,Office 2007 Key Sale, superscan like scanning instrument to scan the machine, if not open ports that built a wall around the home just isn't flawed.
proven in Figure three, if your corresponding opening of the confidential Optional providers within the services, pick the FTP support within this case, so you could FTP from other devices to this device, scan the machine may be found on port 21 is open. Can press the
proven in Figure five, the most frequent would be to make use of the ICMP protocol ping , the default configurations following the device is simply because ping barrier shielding the ICMP protocol, ping via the device when you want to simply
Figure 4




one, ports are sealed methods to talk with other pcs?

World-wide-web users generally don't give any solutions, so there's no must open any ports, but to create use of some network get in touch with tools, for example FTP service to open it, to make Should you uncover a typical network tool doesn't work, please identify it in the port opened from the machine, and then
after the passage with the two exams which have played a role inside the firewall.


communicate with each other within the Online relies on TCP / IP protocol to total, and also the World wide web entry page, within the machine to open a random port higher than 1024 with all the server 80 to service port,Office 2010 Standard, with all the Telnet protocol Other gear is also landing around the machine to open a random port higher than 1024 together with the server 23 to service port. pc companies,Office 2010 Key Sale, you'll be able to say that these ports are standing. The random open ports is short-term, like the web once you go to a web site, your laptop or computer randomly open a port 1026 to connect towards the web server port 80,Windows Product Key, completed off when the entry page, adhere to the machine's 1026 port closed,Office Professional, server, port eighty is generally open. Are visible on WIN98 default doesn't supply any solutions won't open ports, nonetheless cannot correctly accessibility it?

set is quite easy, but I set the procedure to other people, some many people made the following factors of doubt, I wonder for those who have the following confusion?




demonstrated in Figure 4, choose the items to be recorded, the firewall will log the information, the log by default in c: windows pfirewall.log, use Notepad to open appear.
three, there is certainly no scanning software package to check the device around the remote port is open

Figure 5
III, Innovative Configurations
done by default, you are able to see that didn't add a port, that port is shut how to communicate with other personal computers it?


one, in yet another 1 of those devices about the ping for the machine, there Request ping timed out that the distinct nearby

two, and then right-click Figure Pick
Fourth, some questions



Some people today feel that there is certainly no port open after the over settings, and might be set to make use of the netstat-na command following opening the ports search the exact same as just before and didn't set a great deal, does not work?
Figure 1
port is truly the method by a service open to totally shut down a port corresponding to finish providers, which include port 80 to shut the WWW support will quit. And we use , develop a wall around the home. Using the end of the process to shut the port with the very first strategy, using wall.




1, choose to open the support
2, set the log





or Windows XP users who do not have to install any other software program, given that you can actually utilize the system arrives with

Second, testing the simple configurations
a simple set
click on Figure 1,



one, right-click

New york text / burden
2, in a further one of these machines on the use of vulnerability scanning resources to scan the machine found no open ports.

2, set the




If the hand is no scanning application, you can use telnet command to test the proper ports are open, for example test port 21 is open, it is easy to separate a device telnet xxx.xxx.xxx.xxx 21, will seem when the port is open the message, if not open a connection failure is prompt.

Figure 3

three, set the ICMP protocol

Figure two