Astaro won't handle Dynamic IP's from Service Provider?

TrixAreForKids

Senior member
Apr 8, 2001
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I was talking to a buddy who's setup Astaro in a similar situation as I, and said that I can not run Astaro between my internet and a switch and then assign multiple WAN dynamic IPs to my LAN internal computers.

Is this true?

Right now I have

Cable > Switch > computers with own ip's and router with own ip-router shares its one ip with a few computers that don't need their own external ip's

So how can I run a router between the service provider abd switch, and have it handle dynamic IP's from the service provider? Seems possible to me, but I havn't tried anything.

If I can do it, will Astaro let me or do I need a good Hardware Router?
 

gunrunnerjohn

Golden Member
Nov 2, 2002
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I still don't understand exactly what you're trying to do. When you speak of "multiple WAN dynamic IP's", what kind of Internet service do you have? If you don't have multiple static public IP addresses, I don't see how you're ever going to do what you're trying to do! AFAIK, you NEED to have those multiple public IP addresses in order to forward them to anything, dynamic IP addresses will do you no good.

This was the kind of information I was fishing for in the first thread, please be specific as to what kind of Internet service you have.
 

Goosemaster

Lifer
Apr 10, 2001
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I agree with gunrunnerjohn in that I don't seem to understand what you need.


Remember that basic cble/dsl service and home networking works this way:

On average, you are regularly ONE assigned a dynamic ip address by your ISP that is unique to the ISP's network. (DHCP). You need to specify exactly how many public IPs you have. ITseems as if you have more than one.

When using a router set to DHCP as well, it gives connected devices on its LAN side dynamic IPs unique to ITS network. Any outgoing traffic([to the web] is masked under the identity of your Public ISP-IP. Basically, it directs traffic troguh a small pinhole, and coordinates the sending/recieving of htat data to the respective device.

Astaro, in your case, should serve two primary puposes:

1) a DHCP client for the Cable network, or PPPoE if you have DSL.
2) It should serve as a DHCP SERVER to your netowrk.


Astaro can do SO much more as well, such as VPN access, traffic shaping, and Stateful Packet-instection, but you have to obviously get the basicas to work first.

Good luck
 

TrixAreForKids

Senior member
Apr 8, 2001
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Sorry. I have Comcast Pro (DSL isn't available here). So Comcast gives me 5 dynamic IP address's.

I have four computers which need there own IP address's on the internet. They are not servers, they are just clients, so I don't need static as no one is coming to them, they are just sending requests. Yes, it is not an option for them to share an IP, I wish it was that way.

Sadly, I'm under the impression that Cable only provides dynamic ip's, and that's what I got. They don't change often, so I don't mind manually updating which IP gets assigned to what computer, if it's possible for something to detect the dynamic ip's being assigned.

Does this make more sense? Sorry I'm so vague. Thanks for your time.
 

Goosemaster

Lifer
Apr 10, 2001
48,775
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Originally posted by: TrixAreForKids
Sorry. I have Comcast Pro (DSL isn't available here). So Comcast gives me 5 dynamic IP address's.

I have four computers which need there own IP address's on the internet. They are not servers, they are just clients, so I don't need static as no one is coming to them, they are just sending requests. Yes, it is not an option for them to share an IP, I wish it was that way.

Sadly, I'm under the impression that Cable only provides dynamic ip's, and that's what I got. They don't change often, so I don't mind manually updating which IP gets assigned to what computer, if it's possible for something to detect the dynamic ip's being assigned.

Does this make more sense? Sorry I'm so vague. Thanks for your time.

Okay.

Set astaro as a DHCP client but disable NAT.

That's it.
 

TrixAreForKids

Senior member
Apr 8, 2001
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Oh also, in addition to those four client computers with independent IPs, I'd like to use a single seperate IP for my wireless router, which will be used for computers that don't need this 'feature'.
 

TrixAreForKids

Senior member
Apr 8, 2001
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Goosemaster:
Thank you so much, that's what I imagined and my friend was confusing me, insisting it would not work.

Would you mind taking an extra five minutes and explaining exactly how it will work? If I set it as DHCP it will take IPs from cable company and sort them out to computers? Also, if I disable NAT, will I still be able to network these computers together to share files, printers, ect?

Thanks everyone.
 

Goosemaster

Lifer
Apr 10, 2001
48,775
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Originally posted by: TrixAreForKids
Oh also, in addition to those four client computers with independent IPs, I'd like to use a single seperate IP for my wireless router, which will be used for computers that don't need this 'feature'.

Yeah...just set it as a DMZ machine so you won't have port issues.

 

Goosemaster

Lifer
Apr 10, 2001
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Originally posted by: TrixAreForKids
Goosemaster:
Thank you so much, that's what I imagined and my friend was confusing me, insisting it would not work.

Would you mind taking an extra five minutes and explaining exactly how it will work? If I set it as DHCP it will take IPs from cable company and sort them out to computers? Also, if I disable NAT, will I still be able to network these computers together to share files, printers, ect?

Thanks everyone.

1) NAT is primarily for masquarading IPs, as in hiding them fro mthe public network.
Disabling it will mean that the DHCP server will see all the machines, and assign an alowable amoutn of IPs.


I have to go but I'll finish later.
 

TrixAreForKids

Senior member
Apr 8, 2001
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Alright. So under Astaro it will have:

:CLIENT:CLIENT:CLIENT:CLIENT:ROUTER(looks like another computer to astaro):

and under Astaro, I'd set the router as DMZ?

It just confused me, because I always thought of DMZ as restricting access to internet to one computer. And If I did that, wouldn't it restrict everything to ROUTER, and no CLIENTS would have access?

OR, do you mean inside my ROUTER, make it DMZ. But then, I want that ROUTER to give access to a handful of computers.

Also, do I just assign same subnet to all computers to network them?
 

gunrunnerjohn

Golden Member
Nov 2, 2002
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I'm glad you finally clarified the service you have, it makes it soooooooo much easier to analyze a problem when you have the facts.
rolleye.gif


I'm trying to figure out if you could use one of the dynamic IP updating services to track your current IP address and somehow use that to solve the problem of the IP addresses changing. I've never used Astaro, but I can see that it may be a solution, given that you have the public IP addresses to work with. It'll be interesting to see if you can get this working. :)
 

Goosemaster

Lifer
Apr 10, 2001
48,775
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My advice:

I am sorry, but what you are talking is quite impractical....not so much impractical, but jsut a waste of time.

You stated that you do NOT NEED the multiple IP. YOu did not however state whether or not you are SURE that they are dynamic, and whether or not MAC adressing or hostname checking is involved.

This is what I recommend you do :


1)Set eth0, or whatever your WAN/untrusted connection is, to serve as a DHCP client on that interface
2) Eth1 should be set as a DHCP server with NAT masquarading ON.
3)plug your cable cable into eth0 and your switch into eth1


That's it.

Astaro will recieve a dynamic PUBLIC IP from your ISP and then give your other PCs private IPs throught it.



1) You DO NOT NEED the multiple IPs; you said so yourself.
2) You will have no internet problems. If you need port fowarding, Astaro can provide you with easy port-fowarding.



 

TrixAreForKids

Senior member
Apr 8, 2001
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Thanks for your help, but where did I say I do not need it, as that's the only thing I do need. But hey, it's okay, I figured out what I'm going to do, and I understand-