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hi,
may i know whether this application can use in bluetooth connection? anyone can answer me this q? if can not, how or where can i get an example for bluetooth packet filtering app?
thanks.
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The application does not depend on physical media. It should work for any network - whatever the physical connection is.
Please let me know if I provided wrong information
Tomorrow is a blank page
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your program is very good working.Now, I'm making my final project(for graduate) and choose Firewall application. I use your source code to be a blue print of my project. I have some question to ask you.
If I want to permit packets that come from ip x.x.x.x at port 80 how can I do ?!
Thank you so much
Mr.BiG
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hi jesus,
i find ur article excellent help,
however i am having trouble with one particular fuction in the packet ati
PfGetInterfaceStatistics()
have u ever used it.
and if u have, have u got it to update statistics correctly ?
would u be willing to try and help me with this?
it might be an easy problem for you,
but i am baffled
Thanks.
Dermot
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Hi,
I have tested this program on XP.
Program works fine.
but only when I filter the Internet, problem is occured.
If I stop this filtering or I destroy this app,
I can't use my Internet.
My setting is
Source IP -> All
Source Mask -> 0.0.0.0
Source Port -> 80
Dest IP -> All
Dest Mask -> 0.0.0.0
Dest Port -> All
Protocol -> TCP
Action -> Drop
Why I can't use the Internet after the filtering
is stopped or this app is destroyed?
Is there any setting that is not removed?
Please help me.
thanks.
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What do you mean with "filter the internet"?
¿Filter web traffic?
I test this application a "long time ago" and works fine. Anyway, I will test again in order to check this error. Thanks for your help.
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Yes, only web traffic. The others works fine.
Of course, this web traffic(especially HTTP, 80 port) filtering also works fine.
While I push the stop button or destroy this application,
web traffic filtering is not stopped. So, I can't use web(HTTP).
In order to use the web, I should reboot my pc. --;
thanks.
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Hi,
I am Palaniappan doing my final year engineering(Information technology) in Annamalai University.I have chosen My project as Implementation of Firewalls Using c#.Is this possible?and if so is it really difficult.I have really got little idea abt this.Please help me out in this.Actually i need a lot of help.Thank you.
palaniappan
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You only can make a ip filter application using Packet Filtering API with C#. If you want to make more complex firewalls you must learn to develop drivers for windows(C language).
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Hi,
I'm thinking of doing the same too. Where can I get these packet filtering API? Thanks!
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Packet Filtering API is included within Microsoft Platform SDK.
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hi
i need the help to drop the packet but i got the "error C2065: 'PMIB_ICMP_EX' : undeclared identifier"
can u help i remove that error.
Raj
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Sorry, but I don't understand what do you want...
Where did you get this error?
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Your application is great. I would like to ask you. I'm sharing the internet with internet connection sharing of WinXP (Proxy Server). Here, clients can get IP from XP automatically (DHCP server). If I want to block partial clients from going out side. For example, I want to block the client who get IP address: xxx.xxx.xxx.xxx (Assume that I know this computer and his address). I don't know how to block them.
The solution I think.
1. Write my own internet sharing software and I can filter his packet.. but I should also maintain DHCP Server and DNS server. (Big problem)
2. I will write new deamon process which working pararell with ICS and waiting incomming packet. If the incomming packet is comming from the IP I prefered, I will drop it. But I don't know how to drop this packet.
3. Or you have other ideas?
I mainly write application in VB and VC++. But not .NET.
Thank you very much.
Chainat.
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If you know what addresses you can block, you only have to add a rule in the application. Or you are describing an scenario where you musn't block always same addresses?
I write a little firewall using C and VC++ in my article "Developing Firewalls for Windows 2000/XP".
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hi i want to close only the http traffic i tried to use this application for that purpose but it did no do so,
i m using windoes 2000 server and on LAN.i m supplying my adress as the src and 0 on desitnation but it did not block any traffic.
when i use all and option drop then it closes all things like netowrk,internet etc which i dont want i only want to block the internet traffic. had u tested that application and worked fine or what i m doing wrong? i will be thankful to you,
Tasleem Arif
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I have the same problem,
How can I drop incoming packet??
今天没有时间,以后再写吧。
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Hello,
Is this utility totally closes a port. For example, i filter out
all packets in port 135 (Listening) in one pc, then doing port scan in
another pc will not detect port 135 as 'listening'?
Regards,
Andrew Mosqueda
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This application doesn't close any port. Only, the host will drop all traffic whose source/destinaton port is 135.
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Thanks for the information.
Andrew Mosqueda
The warrior is a child
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hi i want to close only the http traffic i tried to use this application for that purpose but it did no do so,
i m using windoes 2000 server and on LAN.i m supplying my adress as the src and 0 on desitnation but it did not block any traffic.
when i use all and option drop then it closes all things like netowrk,internet etc which i dont want i only want to block the internet traffic. had u tested that application and worked fine or what i m doing wrong? i will be thankful to you, i had contacted to author buthe did not reponded.
-- modified at 7:11 Tuesday 8th August, 2006
Tasleem Arif
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hi i want to close only the http traffic i tried to use this application for that purpose but it did no do so,
i m using windoes 2000 server and on LAN.i m supplying my adress as the src and 0 on desitnation but it did not block any traffic.
when i use all and option drop then it closes all things like netowrk,internet etc which i dont want i only want to block the internet traffic. had u tested that application and worked fine or what i m doing wrong? i will be thankful to you, i had contacted to author buthe did not reponded.
Tasleem Arif
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I ran the program, but got the error message:
Cannot open include file: 'Iphlpapi.h': No such file or directory
Cannot open include file: 'Fltdefs.h': No such file or directory
how can i fix it? thanks
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To compile this project you need to install platform SDK. Download it from Microsoft Site.
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