مشكلة في ال Ports الخاصة ببرامج ال P2P

[NaAZoOR]

استخدم USB Modem لإتصال ال DSL الخاص بي ... وبرامج ال P2P مثل التورنت Azureus أو خلافه تحتاج TCP Port كي تتعامل منها مع المواقع والتراكرز وال Seeds وال Azureus يستعمل Port 6881 والمشكلة عندي أنني أجد دائماً ان عندي NAT Problem وعندما استخدمت بعض المواقع لعمل Port Scanning على الجهاز عندي وجدت هذه البرامج أن كل البورتات عندي Stealthed ولا يستطيع الموقع الوصول للبورت ... مع العلم أني عامل Disable لل Firewall الخاصة بالويندوز ولا أمتلك راوتر .. بل مجرد مودم ولا يوجد في ال Setup الخاص به أو صفحة ال configurations الخاصة به أي كلام عن البورتات ... وأنا وضعت البورتات المطلوب فتحها في ال Network Connection setup حتى يمكن فتحها ولكن لا فائدة !!!!

هل يجب توصيل المودم عن طريق كارت شبكة للجهاز بدلاً من ال USB كي أستطيع فتح هذه البورتات؟؟

وإن لم يكن فما الحل وكيف استطيع قتح البورتات التي أحتاجها

[أسامة]

ما هو نوع وموديل المودم ؟

هل يوجد أي firewall آخر غير الـويندوز ؟

من هو مزود الخدمـة ؟

[TrOOKi]

نزل برنامج مراقبة المنافذ X-NetStat Professional وراح يعلمك بكل منفذ والبرنامج المتصل منه والموقع المتصل عليه
وشنو برامج الحمايه الي تستعملها ؟

[NaAZoOR]

المودم من نوع Linksys وموديله ADSL2MUE ولا أستعمل اي Firewall والخاصة بالويندوز عاملها Disable وللا أملك أي برامج حماية أو Anti virus

[NaAZoOR]

up

up

[aMoOR]

As i said, if you have a NAT protocol, then you have a router and a DHCP sever, or a modem with built in router, there is not such a thing called a DSL MODEM with an ethernet port, and ofcourse the USB port is just an erthernet protocol emulator which means a router is a must in order to work, DSL modems are exactly like the Dial up modems, be it a PCI card or an external USB device, still the same you don't access them, they don't have a firmware and you don't have to set ANYTHING inside them, everything is done via the software from the computer's operating system and the included software.

Now, If you don't have a page to set the port configuration yourself, then you are somehow stuck, and there is no solution that i know of to fix this problem, and ofcourse the server has no use here, since in the end it WILL pass thru the router.

Anyway, i might be wrong because i never saw the so called modem that you speak of, if it is indeed a modem, then there is a fix, and please let me know that i was wrong

[aMoOR]

Just wanted to let anyone know if you see the Linksys ADSL2MUE advertised as just being a "modem," don't believe it. I just got mine in and it actually is the "low end" adsl modem/non-wireless router that linkys sells for adsl use. I noticed something wasn't working right when I plugged it in and connected my wrv54g; no light on the internet port.

After I caught on, I realized that this device had it's own dhcp server, syslog, and a few other items most routers have. I had to run crossover cable from its ethernet port to one of four ports on my wrv to get internet connectivity. The end result is that I can't use my router because the adsl modem is the only device that can work with ppoa. So, this has forced my to buy a wag54g. It may not have as many tunnels as the wrv (50) but at least it will work...

https://www.dslreports.com/forum/remark,12652982

Notice the crosscable thing....l

If you are using this modem with its built-in PPPoA or PPPoE functionality, then be warned that it will only support NAT - i.e. your Ethernet connection will only see a local IP address, e.g. 192.168.1.1, and there is no port forwarding from the outside world, so if you try and host a web server on port 80, for example, you will have no way of re-directing traffic via the modem to your server.

However, all is not lost, if you put the modem into "Bridged" mode, and use it in conjunction with a broadband router which supports port forwarding or DMZ, such as the excellent Linksys WRT54G. Your router will then take control of the PPPoE login, and you can configure your router to do port forwarding to your server. You may still have a problem if your ISP only supports PPPoA though, as the WRT54G does not (as yet) support PPPoA. Thankfully, my local BT exchange seems to support both

On the plus side, the performance and reliability of this modem is (so far) excellent.

A good value buy, but don't get it if you intend to use a lot of p2p apps.

https://www.broadbandbuyer.co.uk/Sho...&ShopGroupID=1

[أسامة]

السلام عليكم ..

في البداية إن وجود مودم يحتوي علـى منفذ ethernet لايعني أنه router ، بل هو مودم عادي ، مع ذلك فهذا المودم سيستخدم static nat و سيحول جميع منافذ الـ external IP إلـى الـ Internal IP

الشيء الوحيد الذي أشك فيه في حالـة أن هذا المودم هو مودم فعلا هو أن يمتلك Internal firewall أو أن لا يحول جميع المنافذ من الـ ip الخارجي للداخلي ..


سأحاول الحصول علـى كتيب هذا المنتج لمساعتك أكثر .

[aMoOR]

السلام عليكم ..

في البداية إن وجود مودم يحتوي علـى منفذ ethernet لايعني أنه router ، بل هو مودم عادي ، مع ذلك فهذا المودم سيستخدم static nat و سيحول جميع منافذ الـ external IP إلـى الـ Internal IP

الشيء الوحيد الذي أشك فيه في حالـة أن هذا المودم هو مودم فعلا هو أن يمتلك Internal firewall أو أن لا يحول جميع المنافذ من الـ ip الخارجي للداخلي ..


سأحاول الحصول علـى كتيب هذا المنتج لمساعتك أكثر .

Thats why i said a modem with built-in router, if the device is translating the external IP (Internet IP) to the Local IPs i.e network address translating (NAT), then it is routing the packets to its intended receiver, hence "router"... ofcourse the real routers has many other benefits, and this is just a basic one, which explains why there is no ports forwarding support, and the need for a real router. some *think* it is a firewall, while it is only NAT that is working

btw i am sorry for typing in English, no Arabic keyboard

[NaAZoOR]

أشكرك على الإهتمام بالرد ... كلامك منطقي ويوضح كل شيء ....

بالفعل المودم به DHCP وللأسف ليس به مكان لعمل Config للبورتات ويبدو أنه بالفعل جزء من راوتر وجزء من مودم ....

وبالطبع ال NAT Problem هي السبب في بطء برامج ال P2P وعدم عملها بسرعة مرضية (مقارنة تنزيل نفس الملفات من مستخدم آخر يستعمل راوتر Speedtouch)
يوجد مودم SpeedTouch 330 USB ADSL Modem تؤجره شركة الإنترنت فهل سيكون خيار مناسب ؟؟؟

https://www.speedtouchdsl.com/prod330.htm

أفكر في أن اؤجره لمدة شهر او شهرين من الشركة للتجربة والتأكد من أنه لا يحوي هذه المشاكل ......

وهل لو هو كفء ولن يتسبب في مشاكل مع برامج ال P2P فهل من وسيلة تعرفها لشراؤه من الخارج حيث أنه غير متوافر للبيع في مصر ؟؟

اخي أسامة

هذا هو الموقع : https://www1.linksys.com/internation...oid=6&ipid=604

وهذا هو ال User Guide الخاص به : https://www.speedtouchdsl.com/pdf/Ma...lic%20(en).pdf

[aMoOR]

Yes this modem will be just fine, you can go ahead and rent it for a month or two...i think it is the same one that Karim is using, you can ask him for more information about it....btw modems dosen't have external power adapters, it draws its power form the USB ports unlike the routers or the routers in disguise, it is not a rule though but it might help to identify the real modems.

As for availability i don't think it is possible from outside, not that i don't want to but in USA they mostly use cable modems, not DSL modems, and if you were lucky enough to find one from there, probably it will not work, because of the line systems they use will most likely be different from ours, i remember in the early days of the DSL in Egypt it was very hard to find a good router/modem that will work here ( 3 1/2 years ago or so). Your best bet is from UK...I don't know how though because i have never thought or tired to find a way because of the high taxes there (VAT) but anyway i am sure you will be able to find a decent modem here, look for a Dlink i bought one before i get my current PCI modem

[NaAZoOR]

طب مافيش طريقة الواحد يلاقي بيها PCI Modem ؟؟؟
ولا كله دلوقت External ??

والمودم الخاص ب Dlink الموجود بالسوق حالياً هو
Dlink DSL-210

وهذا موقعه : https://www.dlink.com.sg/products/?pid=313

وال Specs الخاصة به : https://www.dlink.com.sg/products/re...d=313&rid=1039


وهناك سؤال .. هل وجود ال DHCP معناه أن هذا الجهاز هو راوتر أم أن المودمز أيضاً بها ال DHCP ??

If you are using this modem with its built-in PPPoA or PPPoE functionality, then be warned that it will only support NAT - i.e. your Ethernet connection will only see a local IP address, e.g. 192.168.1.1, and there is no port forwarding from the outside world, so if you try and host a web server on port 80, for example, you will have no way of re-directing traffic via the modem to your server.

هل هذا الكلام ينطبق على المودم الخاص بي فقط ام ان اي مودم يتعامل مع PPPoA أو PPPoE سيعاني من نفس المشكلة ؟؟

[TrOOKi]

الكاتيل 330 الي ذكرته مافيه اي مشاكل توكل على الله واخذه
لانه ليس مثل اللنك سيس يعمل على انطمة وشروط سيسكو
بل منعزل وكأنه داخلي
بس لو تقرأ دليل التعليمات الي مع المودم علك تجد وسيله يتفعيل nat

[TrOOKi]

على فكره NAT لها علاقه بحساب الاتصال
انا مفعلها على راوتر d-link ولا اجد اي مشكله ببرامج p2p

[aMoOR]

PPPoA or PPPoE is the protocol used by the ISP, the modem/router must support it to work, the problem in your case is not here, it is the NAT... your modem only support NAT, i will try to explain it in a simple way.

In your modem you have 2 interfaces, the modem and ethernet, the modem connects to your ISP using either PPPoA or PPPoE depends on which your ISP supports, after the connection is established the modem gets the Internet IP. Now, since you have an ethernet interface aswell, it must get another IP address, which is known as the local IP, 192.168.X.X ... now for both interfaces to be connected to each other, NAT is a must, it is the only way to connect both interfaces, ofcourse this is the case with any device, be it a router or a modem with a server and clients, like my network.... NAT has many problems, mainly it dosen't know how to forward or connect ports for any application, you must tell it yourself, that is why you find features like the port forwarding in many other routers, and this is the problem in your case, your modem ONLY supports NAT, and the other features that is designed to help solve NAT's problems dose not exist. Leaving NAT without rules is like having a very stupid firewall, thats why many thinks that Routers has internal firewall.

Of course this is the case with many routers that is sold in Egypt, you know we always like to import the cheapest and the worst, and that is why i always say don't buy a router, get a server... with a server you are essentially giving the NAT task to a computer, which is fool proof, you can't go wrong that way, besides you can limit, block, download...etc with it. Basically, you will get the options that is only found in Routers that cost an arm and a leg lol.

As for the modem that you mentioned, yes i think this one is okay, take a look here ftp://ftp.dlink.co.uk/dsl_routers_mo...rev_bx_QIG.pdf

This is the modem i bought before i get my PCI modem, i don't think the DSL-210 differs, take a look at page 15-29....this is what you need, with this, the computer itself will be assigned the internet IP, and then you can use the ethernet card and NAT to "route" the packets to the clients on the network with the server, the easiest way to do this is just enable windows internet connection sharing and the windows will do the rest, it will enable its built in DHCP server and the clients will be assigned with Local IP addresses, for applications like P2P you can add the required rules and ports in the connection properties, thats it, of course any application running on the server itself will not require any special rule, it will run normally just like using a dial up modem.