Superhub : Business SuperHub Question

[Haz]

Hi,

Does anyone know if the Business Superhub's support a "Multi-NAT" function?

if not would the business team be able to supply a device that has the "Multi-NAT" feature?

This is for the 50MB Business Service that is due to be re released arround October Time

Regards


Haz

[General Maximus]

I cant say for defo because I honestly dont know but I would bet good money the answers are no and no.

[ccarmock]

In essence on its own no it can't if you mean you want multiple public IP addresses mapped to it in NAT mode then no.

In multiple IP mode the Superhub performs no NAT at all. It just routes all of the IP addresses you have through to the LAN side.

However if you have a router behind the Superhub then you can achieve this.

I do it now with a Cisco 892W behind a business superhub in NO NAT mode as I have a routed subnet from VMB.

[General Maximus]

Originally Posted by ccarmock

I do it now with a Cisco 892W behind a business superhub in NO NAT mode as I have a routed subnet from VMB.

I was going to say, Cisco routers can do it without breaking a sweat but there is a big difference (in fact i think you cant even begin to compare them) between the shub and Cisco routers.

It is one thing trying to fob residential customers off with a basic router but how they got away with it for businesses is beyond me.

[ccarmock]

Well in no NAT mode while it is still routing it does a lot less so seems to cope :-)

[Haz]

Oh right that's interesting I was told in order to use my draytek router I would need a superhub that has "Multi-NAT"

Draytek email support said I wouldn't be able to do the following

1. Assign a public ip address to the super hub
2. Assign a public ip address to the draytek router
3. Assign public ip addresses to LAN clients connected to my draytek router

(from an email) The above would not work, as the Virgin Hub cannot be turned into a Modem. *If Virgin can provide a device that allows for Multi-NAT function then it would be possible.

---------- Post added at 14:37 ---------- Previous post was at 14:33 ----------

Originally Posted by ccarmock

In essence on its own no it can't if you mean you want multiple public IP addresses mapped to it in NAT mode then no.

In multiple IP mode the Superhub performs no NAT at all. It just routes all of the IP addresses you have through to the LAN side.

However if you have a router behind the Superhub then you can achieve this.

I do it now with a Cisco 892W behind a business superhub in NO NAT mode as I have a routed subnet from VMB.

I'm planning on having a simerler setup to yours except my router is a draytek not a Cisco router

If I take the 5 ip option would I still be able to do what I said wasn't possible ( see my post above) ?

Regards

---------- Post added at 14:38 ---------- Previous post was at 14:37 ----------

So does the superhub not perform NAT when multiple public ip addresses are used ?

[ccarmock]

You will certainly be able to do number 1 & 2 if you take the 5 (or more) fixed IP address option yes.

Option 3 depends how you plan to subnet it down.

[qasdfdsaq]

1-3 are all possible. Draytek are talking bollocks. And not the first time either

[craigj2k12]

Well I cant get a public IP on the WAN side of the superhub, so if you would care to shed some light....

[Haz]

Ahh right wouldn't the LAN clients (that I want to assign a public ip address) use the same subnet as the public ip address ?

How would I go about setting up the routed ip setup on the draytek router (any ideas) I would just put the super hub's public ip address in wouldn't I ? And put the public ip subnet in

And on the LAN client I would put the superhub's public ip address as the default gateway

Am I right ?


Regards

---------- Post added at 15:14 ---------- Previous post was at 15:10 ----------

Originally Posted by ccarmock

You will certainly be able to do number 1 & 2 if you take the 5 (or more) fixed IP address option yes.

Option 3 depends how you plan to subnet it down.

How would I setup a public ip for the draytek router as in the quick setup it asks me to specify an static ip address and I was told to put in the internal class C address would I put the public ip address (of the superhub) instead of a private address

[ccarmock]

If you use the Business Superhub in NO nat - ie routed subnet mode it will not run a DHCP server, so you need to statically assign your addresses. The first int he block will be assigned to the superhub itself. Yo ucan then assign another statically on the draytek

[General Maximus]

I dont know about draytek routers but if you got yourself a Cisco router you can save yourself a whole lot of trouble. If you have got more devices than you have ip addresses (e.g if you have got 4 public addresses) you can create a dhcp pool for your lan and tell the router to nat the private addresses to the specificied 4 routable public addresses. It is very good.

[Haz]

Oh right thanks for the advice everyone

I will have to give it a go when the service comes out

I will email draytek and tell them that the super hub does not operate in NAT mode when you have routable ip addresses


Thanks


Haz

[Haz]

I've just got a reply from draytek and this is what they said

Thanks for your email. You can use IP Routed Subnet if you want to use the public IP's givin by Virgin. This will only work if Virgin will pass all of the public IP's through their modem to the 2920n. You may need to advise Virgin that you are using a 2920n behind their modem and require the public IP's to be passed through to the 2920.

If they can do this then you can follow the guide from the link below to setup IP Routed Subnet.

http://www.draytek.co.uk/support/kb_...2ndsubnet.html

Regards,

Im guessing public ip addresses can be passed through the super hub am I correct ?





Haz

[qasdfdsaq]

Yes.

The Superhub can't *not* pass them through when you have multiple IPs.