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2 Public IP Config on ADSL Speedtouch router

Posted on 2008-06-16
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Last Modified: 2013-12-23
Hi,

Here's my situation.

I have 1 router (Speedtouch 716 WL), wired PC, 2 laptops (wireless), 1 PS3 (wireless).

Internal network is 10.0.0.x 255.255.255.0, Router internal address is 10.0.0.1

My ISP gives me 2 external IP's

IP Address(es)          x.x.x.53 > x.x.x.54
Subnet Mask       255.255.255.252

I wish for the router to have x.x.x.53 and my wired PC to have x.x.x.54 and all the other devices to have local (10.0.0.x) addresses.

Firstly, is this possible? Secondly, how do I do it?

Thanks,

Marty
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Question by:marty_t
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by:dragonjim
dragonjim earned 100 total points
ID: 21796443
Does your documentation point to the router website... I'm having trouble finding a manual on its capabilities.

Generally, for the 10.0.0x addresses you will need the NAT capability of the router activated - which would give the PC a 10.0.0.x address, and not the .54.

Residential level router, I'm not sure if you can accomplish the two public IP addresses. Need to see the manual.
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by:Press2Esc
Press2Esc earned 150 total points
ID: 21797067
I am not familiar with that specific modem of Speedtouch or your ISPs rouing used for your 2-statics, however, when you (PPP) authenticate the dsl router, is your public IP = x.x.x.53?  If so, you should be able to config an IP Pass-Through to x.x.x.54.  
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by:marty_t
ID: 21801919
The router's public address does become x.x.x.53 and it currently NAT's to 10.0.0.x fine. I simply want to add a PC with the public address x.x.x.54. I don't mind if the PC does NATing or the router.

What I had hoped is that the router would allow me to put in a subnet for it's static public IP (x.x.x.53), this would then be 255.255.255.252 (I believe), then I could simply change my PC's IP address to x.x.x.54), subnet 255.255.255.252.

I can set the public IP on the router, but there's nowhere to put a public subnet?!

As for the router, some more information is... It's a Speedtouch (which I believe is a branded Thompson) 716 wl, this means it's a wireless VOIP ADSL router.

Thanks.
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by:marty_t
ID: 21802087
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by:marty_t
ID: 21802141
And this may help techie router people. It's a CLI for the router interface.

http://www.speedtouch.nl/docs/ST716v5_CLIguide.pdf
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by:marty_t
ID: 21846500
Hmm, guess no-one knows the answer.

Have increased the points to 500, if no response / fix, I will close the ticket.

Thanks,

Marty
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by:marty_t
ID: 21981758
Does anyone have any input on this?
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by:Press2Esc
Press2Esc earned 150 total points
ID: 21982433
Although I am not specifically familiar with your router, it looks pretty generic & it appears to offer the flexibility to do what you want to do.

  Via the GUI menu, you have to two choices.  The first (1) option is what is commonly called an "IP Passthru" mode and the second (2) commonly called "Pinholes".  *** If you are running some type of "server", you probably want the first (unprotected) choice. If you are running a single application, you probably want the (protected) second choice.***

For "IP Passthru" mode click Home Network > Devices > Pick a task > Assign the public IP Address of a connection to a device > Edit > in the Device list - select you device that your want to assign your Public IP (aka "DMZ").... whalla - your done.

For "Pinholes" click Toolbox > "Game and Application Sharing" > Pick a Task... > "Create a new game or Application" or you can "Modify a Game or Application" > edit your name and req'd port(s); Apply > OK....

Either reboot or ipconfig release/renew your device.
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by:marty_t
ID: 21982561
Press2Esc,

This IP Passthu sounds closest, but I'm sure it only gives the IP address of the router.

I can't find a section that allows me to change the subnet of the router's public address.

I thought I'd be able to do this:

1. Set the public IP of the router to x.x.x.53 subnet 255.255.255.252
2. Set IP Passthru to the IP of my linux server x.x.x.54
3. Set the private IP of the router to 10.0.0.1 subnet 255.255.255.0 and DHCP for 10.0.0.3>254 and allow the router to NAT everything that is addressed to x.x.x.53.

Job done.

I can set the IP address of the public side, but I see where I can set the netmask.

Thanks for your input.

Marty
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by:Press2Esc
Press2Esc earned 150 total points
ID: 21982884
depending on wheither NAT is being used, the address on your device (using IP Passthru) may have to be on the same subnet as the router (e.g 10.0.0.200);  alternately, you may be able to set the device to x.x.x.53/255.255.255.252 -  but you will need a x.x.x.? subnet as a GATEWAY address....  Call you ISP tech support and ask them what the gateway address is for your statics...

P2E
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marty_t earned 0 total points
ID: 22139222
Thank you to all your help. I have found the answer.

What I want to do won't work, unless I use the router as a bridge, which stops my other clients using internal addresses.

I'll split the points for your efforts. thank you.

Marty
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by:marty_t
ID: 22159935
Thanks
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by:Press2Esc
ID: 22160469
I am curious, did you contact level 2 tech at your ISP?
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