As my modem's menus are in Japanese, I thought this might be a good place to post

Recently I changed over to a wireless network using a Web Caster 3100SV modem. Since then my torrent download speeds have been crap. I have a red "firewalled" icon on Azureus.

So looking at the AzureusWiki it looks like I could have a NAT problem.

What I know for sure:

My laptop has a static IP address (initially was set up to use DHCP getting an IP from the modem); UPnP is turned off in Azureus.

What I'm not so sure about:

How to set up port forwarding rules on my modem. There are 2 sections that I think are where I want to be アドレス変換（ポート指定）設定 and アドレス・ポート変換設定. Not quite sure which to use, or whether I should use both?

アドレス変換（ポート指定）設定

LAN側IPアドレス <my IP>
ADSL側IPアドレス 自分のADSL側IPアドレス <checked>
IPアドレス指定 <unchecked/empty>
プロトコル <TCP&UDP>
ポート番号 <51007>

---------------

アドレス・ポート変換設定

LAN側IPアドレス <my IP>
ADSL側IPアドレス 自分のADSL側IPアドレス <checked>
IPアドレス指定 <unchecked/empty>
プロトコル <TCP&UDP>
LAN側ポート番号 <51007>
ADSL側ポート番号 <51007>

---------------

Basically, I'm not too sure what I'm doing. Specifically, does anyone know where I should be setting up the rules? What is the difference between the 2 sections that I mention above?

Advice appreciated.

im taking it your familiar with port forwarding and if not try http://www.portforward.com . As for which one to try, why not just set it in both screens. Azureus requires both tcp and udp. Some modems require you to do two setting for the one port number, one for tcp and one for udp whereas more sophisticated ones let you make one setting and simply check "Both UDP and tcp".

If setting the rules in both screens creates problems then deactivate one screens setting and see if it improves the speed. Then try it on the other screen.

Nat is usually caused by a router sat between your cable modem and pc i think. Your cable modem has a wifi router integrated in it maybe...so maybe thats what the two screens are, one for the cable modem and one for the wifi router but thats just a guess.

You've probably already looked through this, but if not...

http://www.ntt-west.co.jp/kiki/download/...etail).pdf

Turn on upnp and see what happens.

If I remember correctly "アドレス・ポート変換設定" is to forward an external port to a DIFFERENT port internally.

Thanks for your suggestions.

I'm going to look into UPnP a bit more. Initially I thought my NTT device didn't support this properly. Still not sure. But after enabling detailed logging in Azureus it is giving a mixture of success and failure messages.

That said, I still get the red firewalled icon in Azureus :mad:

OK, I'll have a stab at this, although I'm having trouble distinguishing the difference between:
アドレス変換（ポート指定）設定 (Inbound NAT?)
and
アドレス・ポート変換設定 (Outbound NAT?)

Anyway, go to the first one: アドレス変換（ポート指定）設定

LAN側IPアドレス: Computer's IP
ADSL側IPアドレス: 自分のADSL側IPアドレス
プロトコル:TCP
ポート番号:6881-6999

I dunno if that will work, it would be better to test port forwarding on one particular service, proving that works, then adjusting the rule to support BitTorrent.

Huh, who'd have thunk it, I'm reading tech manuals in Japanese... should have my head examined.

aircawn Wrote:ポート番号:6881-6999

Why are you recommending to forward a range of ports? Azureus only uses one port, and the help files recommend NOT using a port within that range (commonly banned on trackers).

aircawn Thanks for your suggestion. That gives me more to think about. I just added that rule you suggested as well as one for port 51007 (TCP&UDP). Interestingly one of my torrents now has a higher upload speed than I have noticed before! Also disabled UPnP. Still have the red firewalled "problem" though.

Still got Jarvik7's UPnP avenue to pursue further too.

I don't use Azureus myself, but it's simply a BitTorrent client, right? The BitTorrent protocol uses a range of ports to connect to each other node in the swarm. This is that range. Azureus may only connect on one port but it is not the only BitTorrent client out there, I'd assume the other clients all try to connect within that range.

Switched things back to UPnP. Might just have been timing but using aircawn's port forwarding suggestion, my torrent upload speeds looked faster than under UPnP.

On my NTT modem, it reports:

UPnP NAT設定情報

サービスホスト 接続先 プロトコル 内部ポート番号 外部ポート番号 有効期限(秒) サービスの説明

me メインセッション(Flets ADSL) TCP 6969 6969 無期限 Azureus UPnP 6969 TCP
me セッション2(FletsSquare West) TCP 6969 6969 無期限 Azureus UPnP 6969 TCP
me メインセッション(Flets ADSL) TCP 51007 51007 無期限 Azureus UPnP 51007 TCP
me セッション2(FletsSquare West) TCP 51007 51007 無期限 Azureus UPnP 51007 TCP
me メインセッション(Flets ADSL) UDP 51007 51007 無期限 Azureus UPnP 51007 UDP
me セッション2(FletsSquare West) UDP 51007 51007 無期限 Azureus UPnP 51007 UDP

me = my computer's IP

aircawn Wrote:I don't use Azureus myself, but it's simply a BitTorrent client, right? The BitTorrent protocol uses a range of ports to connect to each other node in the swarm. This is that range. Azureus may only connect on one port but it is not the only BitTorrent client out there, I'd assume the other clients all try to connect within that range.

I really don't want to get into a technical discussion, but thats not the way it works.

I feel like I'm getting somewhere even though I still have a red "firewalled" icon as opposed to a nice green "NAT OK"!

Following Jarvik7's suggestion, I reckon I have UPnP set up okay on my modem (although possibly not the case). Also enabled in Azureus.

FYI, I am able download and upload but the speeds I am getting now are a) less than I was getting prior to switching to wireless, b) less than other people I know and c) I cannot upload my own torrents (I have been able to do this in the past, so I'm putting this down to some kind of network issue although it could well be my own stupidity)

So sorry for this totally non-kanji thread. However if I could upload torrents properly I would be firing up some JP gameshows etc.

It is worth mentioning that Azureus' "red icon" often lies. Mine goes between red and green all the time.

I assume you're using OSX, because there are better torrent clients for windows that you might try (utorrent). You could also try Transmission for OSX.

sorry not sure about this but doesnt azureus's wiki suggest turning off the udnp if your having problems with nat? oh and dont do what i did and forget to save the settings by not explicity clicking on its save button hidden bottom corner.(doh!)

thegeezer3 Wrote:sorry not sure about this but doesnt azureus's wiki suggest turning off the udnp if your having problems with nat? oh and dont do what i did and forget to save the settings by not explicity clicking on its save button hidden bottom corner.(doh!)

I think that is mainly if you have problems with upnp not properly forwarding your ports. He never had upnp on in the first place. The reason Azureus suggests that as a possible fix is because UPNP is a VERY poor standard which is rarely implemented 100% correctly, making it quite unreliable.

As Jarvik7 says, initially I didn't have UPnP turned on. From what I can tell, on the NTT modem it seems to suggest UPnP is now working.

Using UPnP or setting up explicit NAT rules doesn't change the "firewalled" status in Azureus. On my previous setup (before going wireless) I can remember seeing what Jarvik7 talks about. Sometimes in Azureus I would be green NAT ok and others red firewalled.

Now though I am constantly "firewalled" according to Azureus. Running the NAT test in Azureus fails. It could well be down to user error that I just can't get this sorted out. Dunno. Only Azureus complains. As far as other internet access is concerned, I have no problems.

My provider is Biglobe by the way. Anyone else use them?

Jarvik7 I've just noticed the fastest download speed for a torrent I can remember seeing...ever (on my computer that is). At one point it was up to 856 kB/s. Mind you, it is a particularly well seeded program. But I think I'll be keeping UPnP turned on for now. Thanks

synewave Wrote:Jarvik7 I've just noticed the fastest download speed for a torrent I can remember seeing...ever (on my computer that is). At one point it was up to 856 kB/s. Mind you, it is a particularly well seeded program. But I think I'll be keeping UPnP turned on for now. Thanks

I was on Asahi.net (also NTT) and used UPNP without problem. Occasionally Azureus would have a red icon but usually it was green. I think the highest speed I hit was 3MB/s. Mind you I had a wired setup instead of wireless and thus a different modem/gateway device (wireless package was slower speed for more money).

I have a similar problem ... trying to set up port forwarding with my modem but i cant find anything that looks remotely like port forwarding ...

can anyone help me? First time i'm forwarding too ... here is the menu tree, any advice on where to look would be appreciated. Thanks!


設定
基本設定
モデム詳細設定
ADSLサービス設定
LANの設定
DHCPサーバ設定
IPマスカレード設定
スタティックIPマスカレード設定
ルーティング設定(LAN側)
IP電話詳細設定
保守
状態表示

I'd say it's likely to be under one of these headings...

IPマスカレード設定
スタティックIPマスカレード設定

(IP Masquerade)

Mr_Wendal Wrote:can anyone help me? First time i'm forwarding too ... here is the menu tree, any advice on where to look would be appreciated. Thanks!

Are there any further sub menus?

Also what modem/router thing do you have?

Wow, thanks so much for your quick replies!

So do i have to set a static IP before it lets me forward ports?
IP Masquerade and Static IP Masquerade dont seem to help much, i've put screenshots of them here:
http://img.photobucket.com/albums/v615/m...ipmasq.jpg
and here:
http://img.photobucket.com/albums/v615/m...ipmasq.jpg

My modem is a Fujitsu FA11-W5 ... i've tried searching for info online but there doesn't seem to be anything useful.

Complete menu is as follows, but i'm pretty sure if it would be there it would be in the 設定(setting) section.


FA11-W5
設定
基本設定
モデム詳細設定
ADSLサービス設定
LANの設定
DHCPサーバ設定
IPマスカレード設定
スタティックIPマスカレード設定
ルーティング設定(LAN側)
IP電話詳細設定
電話詳細設定
ユーザ電話接続テーブル
保守
回線接続確認試験
ユーザ名 & パスワード設定
変更内容の保存
工場出荷時設定
自動再設定
ファームウェアメンテナンス
コンフィグレーションメンテナンス
Webアクセス設定(WAN側)
状態表示
現在の設定内容
DHCPサーバIPアドレス割当一覧
有効スタティックIPマスカレード一覧
有効ルーティング一覧
ADSL回線状態一覧
IP電話状態表示
自動設定情報一覧
ユーザ電話接続テーブル一覧
IP電話接続テーブル一覧
ADSLキャリアチャート

My understanding is that you DO need a static IP before you set up port forwarding.

Yeah, your menus look different from mine (and we have different modems) so not exactly sure where you want to look.

The スタティックIPマスカレード settings appear to have all the right fields for port forwarding, with some abiguities.

I'm unsure what the options are for 設定番号 are... but as for the others...
有効/無効: 有効
プロトコル: TCP
インタネット側: Leave as is. (It's description seems to conflict with the next two settings).
開始ポート: Your server's port
最終ポート: Your server's port
ローカルIPアドレス: Your server's IP address.

This is a guess. Maybe that will work. You may need to add another rule with the same settings except changing プロトコル to UDP.

Though I'm sure there are others here who understand Japanese computer menus more than I do.

aircawn appears to have it right. The IPmasq page is for enabling the firewall/upnp, while the static ipmasq page is port forwarding. Interestingly you have UPNP enabled, so you should be able to forward ports in Azureus etc already.

The internet側 field is just a shortcut to select common port ranges to forward and can thus be ignored. When you setup a rule, make sure to give it a unique number (the first field), then 追加. You might also have to save the settings somewhere in the main menu.