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Airport Extreme and port forwarding

#15 User is offline   lyronis Icon

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Posted 10 August 2007 - 07:00 PM

hello there.
i connected my other router (netgear) which has the id 192.168.1.x
with subnet 255.255.255.0 and i rub the slingbox player, i forwarde through the wireless router's site http://192.168.1.x the port to be at 5001, run through the whole process of connecting it with the internet but the same message again...!!!
What the heck...!!!!
What else can i do?
please help
4th night spending my time on this and staying sleepless.
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#16 User is offline   smax013 Icon

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Posted 10 August 2007 - 07:14 PM

Quote:

hello there.
i connected my other router (netgear) which has the id 192.168.1.x
with subnet 255.255.255.0 and i rub the slingbox player, i forwarde through the wireless router's site http://192.168.1.x the port to be at 5001, run through the whole process of connecting it with the internet but the same message again...!!!
What the heck...!!!!
What else can i do?
please help
4th night spending my time on this and staying sleepless.


Ok...let's slow down and take it step by step...
How you have the Slingbox setup? Do you have it setup to use a static IP address from the router? If so, what is the IP address for the Slingbox? Let's say for grins that you have selected 192.168.1.151 as the IP addres for the Slingbox.
Next, did you go into the router's setup and goto port forwarding and forward port 5001 to the IP address for the Slingplayer (i.e. 192.168.1.151 per the example above)?
If you setup the Slingbox to use a dynamic IP address then port forwarding is kind of tough to use. To forward a port, you have to tell which IP address to forward the port to...and if you use dynamic IP addresses, then in theory that IP address can change.
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#17 User is offline   lyronis Icon

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Posted 11 August 2007 - 04:48 PM

ok.
i ll write you my setting and you guide me what to do. ok. (i remind you that i have an imac and the connected router now is NETGEAR)
settings when i go into the System preferences: Network: Airport : Configuration.
ip adress 192.168.1.2
Subnet mask 255.255.255.0
Router 192.168.1.1
Router settings when i go online to see the router
ip adress 172.19.3.2 it is checked "get dynamically from ISP")
Subnet mask 255.255.0.0
Getaway ip adress 172.19.3.1
DNS Server 172.19.3.1
Slingbox
ip 192.168.1.199
router 255.255.255.0
port 5001
tell me what i should change.
note. when i change the setting of my router (in the site) there s no internet.
when i change the setting of my slingbox similar to the router it doesn connect either.
how can we make it work?
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#18 User is offline   smax013 Icon

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Posted 11 August 2007 - 04:59 PM

Looks like you have things fine in terms of the IP address for the Slingbox.
Some questions to make sure we have some other bases covered:
Is the Slingbox connected by ethernet cable? I am assuming this to be the case.
Can you connect to the Slingbox from your own Mac that is "internal" to the network? In otherwords, is the problem only connecting from the Internet (i.e. someone else's computer or your laptop when "travelling")?
In the Slingplayer settings for the Slingbox, what IP address do you have setup for the "Default gateway"? Is it the 192.168.1.1 IP address of the router?
Have you gone into the port forwarding settings of your router and forwarded port 5001 to IP address 192.168.1.199?
Do you have a Slingbox Finder ID setup in the properties of your Slingbox (in the Slingbox application, Slingbox menu > Properties...)?
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#19 User is offline   Damien Icon

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Posted 11 August 2007 - 06:30 PM

Looks like he's got a double-layer of network address translation (NAT) going on. His Netgear router is pulling a NATted IP number (172.19.x.x) from the cable modem (or DSL modem) which means that there's another layer of NAT that might be getting in the way. Simple network diagram:
88.88.88.888 (some publicly addressable, pingable IP number
CABLE MODEM
172.19.3.1 (gateway/router) IP for first router on network; 1st NAT layer
172.19.3.2 (IP number assigned via DHCP by first router)
NETGEAR
192.168.1.1 (gateway/router IP; 2nd layer of NAT)
192.168.1.199 (IP number assigned by 2nd router on network; DHCP)
SLINGBOX
See the problem here? There are two layers of NAT: 192.168.x.x and 172.19.x.x. Basically, there are two routers in the mix. If the first router (a cable modem?) isn't configured to pass all traffic between its outside publicly, pingable IP number and the private IP range it's doling out (172.19.x.x), then accessing his Slingbox from the outside will never work. Sometimes, the router given to you by the ISP is configurable, so you can log into it and telli it to forward traffic. So this begs the question:
What is the first device in your network here? Give us a brand name and perhaps which ISP you are using.
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#20 User is offline   lyronis Icon

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Posted 11 August 2007 - 06:56 PM

Slingbox is connected with ethernet cable to wireless router (netgear).
the modem is copperjet810 and the isp is otenet greece.
When i connected the slingbox for the first time it worked but only for my home network (not for outside).
then i disconnected the airport extreme (apple) and i reconnected the NETGEAR.
it worked again but only in my home network.
i tried all the possible solutions and numbers but no luck.
now i have reseted the NETGEAR router and its settings changed to these ones:
ip adress 172.19.3.2 it is checked "get dynamically from ISP")
Subnet mask 255.255.0.0
Getaway ip adress 172.19.3.1
DNS Server 172.19.3.1
before they were the same as my modems
192.168.1.2 (ip)
255.255.255.0 (subnet)
192.168.1.1 (router).
now the sling player does not connect at all not even in my home network.
5th day of not sleeping and trying to make this [censored] work.
my god, why it should be so complicated?
such a mess.
In the box and manual seemed to easy to install and run..!!
please help me.
Next Friday i am leaving for a month and i want to be able to watch my favorite programmes...!!
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#21 User is offline   smax013 Icon

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Posted 11 August 2007 - 08:21 PM

I think that Damien is correct.
I would try hooking the computer directly to the modem and navigate to 172.19.3.1 in a browser and see if you can log into the modem setup. It you cannot or it is not obvious what to do, then you might need to contact your ISP and ask them how to configure the modem. It does appear that the modem has a built-in NAT router function at least based upon the IP addresses it is handing out to your Netgear router.
If you can log in, then you will want to try route all trafic to the Netgear router, which would basically turn off the NAT functions of the modem...unless there is a way to actually turn it off.
The exception would be if you have multiple ports on the modem/router. If so, then you could potentially scrap the Netgear router and hook the computer and the Slingbox upto the modem/router and then configure the modem/router to forward port 5001 to the Slingbox assuming that you can get the modem/router to use the 192.168.x.x subnet rather than 172.19.x.x subnet.
The modem/router rather complicates things.
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#22 User is offline   lyronis Icon

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Posted 12 August 2007 - 07:09 AM

i connected the modem directlyto the imac.
couldnot navigate throught safari but i change the settings from system preferences / network / bult ethernet setting.
i changed it from 172.19.3.2 etc to 192.168.1.2
modem & internet works great.
i reconnected the router. its settings are
when you see it through mac's system preferences / network / airport extreme the correct ones (192.168.1.2) but when i go online to the router set up (http://192.168.1.2) the router settings appear to be 172.19.3.2). When i change it to 192.168.1.2 loose internet connection.
Slingbox is in ip 192.168.1.3 with 255.255.255.0 and port 5001.
I have forwarded the router to be in port 5001 with ip 192.168.1.3.
Still doesnt work...

Should i reconnect apples airport extreme and try to make it work from there?
apples airport extreme i think has internet only in ip 10.0.1.200
Starting to get desperate because i cant see any solution to my problem and makes me want to through the slingbox from the window.
please help me.
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#23 User is offline   smax013 Icon

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Posted 12 August 2007 - 07:52 AM

The problem is that it appears your modem has a NAT router (basically a firewall) built into it.
Think of it like this. You have house with a door that lets you in the house. The house is your internal network which has your computer and your Slingbox in it. The Netgear router is like the front door of the house. In general, it does not people thru into the house...unlesss you invite them in (i.e. when you ask for a webpage by typing a web address, you are asking for a response from the web server...much like asking someone into your house) or you give them a key (this is like port forwarding...you would give a specific person a key that will allow them to open the door...port forwarding is that specific "person" that you are allowing through the door...the difference is that port forwarding is like you give them a key and they promise to enter the house a go directly to a particular room, where the room is a particular computer or device).
OK, so now, imagine that you put a 12 tall electified fence around your house with one gate through it. And surronding the house are several paths that can lead to the house, the garden, the shed, the poolhouse, etc. The one gate and fence is like the NAT router that is part of the modem that you have. Now, in order for the UPS man to get insider the house to retrieve the video that you want to "ship" (the UPS guy is the request from an outside computer to get to your Slingbox), the UPS guy has to be able to get through the gate in the fence (i.e. the NAT router in the modem) and the front door (i.e. the Netgear router) and go to the family room to get the video (i.e. the Slingbox). So, you have to give him a key and instructions to open the gate and how to navigate to the front door (this is setting up port forward in the NAT router in modem to send the Slingbox request to the Netgear router). Then once at the front door, the UPS guy will have to have a second key and instructions that will open the front door and tell him how to get to the family room in the house (this is port forwarding on the Netgear router that will send the Slingbox request to the Slingbox itself).
If you don't give the key and instructions to the front gate to the UPS guy (port forward the NAT router in the modem) AND the key and instructions to the front door to the UPS guy (port forward for the Netgear router), then the UPS guy cannot get the video (no connection to the Slingbox from the outside).
Point is that you must setup port forwarding for BOTH the modem/router and the Netgear router unless you can setup your network WITHOUT the Netgear router. But, even if you can eliminate the Netgear router, you will still need to setup port forwarding on the NAT router that is built-in to the modem. And you will likely need to call your ISP to figure out how to setup that NAT router in your modem (and verify that is what is actually going on).
I don't know what else we can do to help. It appears that you REALLY need to figure out how to access the modem/router settings and deal with that. And I cannot help you there...most likely only your ISP can help you with that.
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#24 User is offline   lyronis Icon

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Posted 12 August 2007 - 09:14 AM

thanks for all the advice.
i ll do that.
have a question.
the ip that will have the forwarded port must be the router/modem's (192.168.1.2) or the slingboxes (192.168.1.3) ?
i mean that when i will go to forward the port which device's ip should i use?
the other thing is that
it can slingbox will work if
modem id is 192.168.01.02
subnet 255.255.255.0
router 192.168.1.1
and router settings too and the slingbox must be on 192.168.13. with subnet 255.255.255.0 and port forwarded to 5001.
is these the correct settings?
if not please give me an example of how the setting should be
modem
router
slingbox.
Thank you very much.
hope we deal with this nightmare.
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#25 User is offline   lyronis Icon

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Posted 12 August 2007 - 09:18 AM

thanks for all the advice.
i ll do that.
have a question.
the ip that will have the forwarded port must be the router/modem's (192.168.1.2) or the slingboxes (192.168.1.3) ?
i mean that when i will go to forward the port which device's ip should i use?
the other thing is that
can slingbox will work if:
modems ip is 192.168.1.2
subnet 255.255.255.0
router 192.168.1.1
and router settings must be also ,
ip i192.168.1.2
subnet 255.255.255.0
router 192.168.1.1
and the slingbox must be on 192.168.1.3. with subnet 255.255.255.0 and port forwarded to 5001.
are these the correct settings?
if not please give me an example of how the setting should be
modem
router
slingbox.
Thank you very much.
hope we deal with this nightmare.
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#26 User is offline   smax013 Icon

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Posted 12 August 2007 - 12:37 PM

Your modem will get an IP address from the ISP...this will typically be dynamically assigned. It shold be an IP address that does NOT start with 192.168.x.x, 10.x.x.x, or 172.x.x.x.
As it appears that your modem has a router built into the modem, it is currently setup to assign an "internal" IP address in the 172.x.x.x range to any device that is hooked upto the modem. Thus, it will assign an IP address in the 172.x.x.x range to your Netgear router if you hook it up to the modem. Ideally, you will want to 1) enter the modem setup to have its built-in router use a STATIC IP address for the Netgear router (which you can typically pick as long as it is in the appropriate range of internal IP addresses that the modem/router is set to use); 2) then forward port 5001 to THAT IP address of the Netgear router. This is like the analog of giving the key to gate in the fence and the directions to the front door of the house (i.e. setting up the port forward in the router function in the modem so that port 5001 get sent to the Netgear's internal IP address).
Now, the WAN IP address of the Netgear router will be 172.x.x.x something that comes from the modem with the internal router. You then will want to setup the Netgear routers to allow static IP addresses and establish a static IP address for the Slingbox. This will be an address that starts with 192.168.x.x. You then need to setup the port forwarding of the Netgear router to send port 5001 to the 192.168.x.x IP address of the Slingbox (this is the key to the front door and the instructions on how to get to the family room where the video is located...the key allows the request through and the IP address/directions tells the request where to go).
So:
Internet
|
IP address NOT starting with 192.168.x.x or 172.x.x.x or 10.x.x.x dynamically assigned by ISP
|
modem with built-in router
|
IP address starting with 172.x.x.x that is STATICALLY set and has port 5001 forwarded to it in the modem settings
|
Netgear router
|
IP address starting with 192.168.x.x that is STATICALLY set and has port 5001 forwarded to it in the Netgear router settings
|
Slingbox
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#27 User is offline   lyronis Icon

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Posted 12 August 2007 - 07:24 PM

i tried and went to the modem (with router) setting and port forwarded 5001 to routers ip (172.x.x.x).
then i went to routers setting and port forwarded 5001 to slingboxes ip 162.x.x.x then i went to slingbox and manually put its ip 162.x.x.x with port 5001.
i connected the box again. i set it up and it worked..!!!!
i tried it on my macbook too (where i downloaded sling player too) and it worked there too!!
i also connected to the internet through a neigbors wireless internet and it worked from there too..!
Thank you guys...!!!!!
Thank you for everything and especially for the time you devoted to fix my problem!!
Thanks a lot,
G.L.
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#28 User is offline   smax013 Icon

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Posted 12 August 2007 - 08:41 PM

Glad to help. Enjoy. The Slingbox is almost as good an invention as the DVR...almost. /forums/ubbthreads/images/graemlins/grin.gif Put the two together and you have TV heaven!! /forums/ubbthreads/images/graemlins/wink.gif
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