Nova Broadband Cork Service

ComputerTechie

I have been dealing with Nova Broadband Cork. In particular with their business wireless broadband service. The IP address that they present to me is 192.168.100.xxx . This is a private IP Class C address and is incompatible with certain services on the network. I am trying to isolate a network problem and need a public dynamic IP address or a static IP address. The range they are allocated according to the Nirsoft.net website is 91.142.96.0 - 91.142.111.255 but they are presenting me with a private ip address 192.168.100.xxx. When I asked for a static ip address they offered me one in the 10.0.0.xxx range (This is a Class A private ip address). When I queried this and asked for an ip address from their public ip range I was told that I would have to take out a Service Level Agreement for this.
I have several issues with this service.

1. Is it legal to use private ip address ranges in this way?
2. Are they obliged to provide me with a public static ip address if I request one?

I am very unhappy with their service and their communication so far.

Can anybody provide explanations for their behavior please.

Dero

It is standard practice, especially with a lot of WISPs. They present you with an RFC1918 address which is then NAT'd on to the Internet, probably at the mast, or maybe the DC. This allows multiple customers to "share" a single IPv4 address.

What is odd is being offered a static address in 10.0.0.0/8. What good is that? Any ISP I've ever dealt with will just assign one when requested.

I presume it is legal to do this, as lots do it.
I don't think they're obliged to provide you with a dedicated public address, either static or dynamic.

ComputerTechie

Thanks very much Dero for your good and timely reply. If I get any joy from them I will post back.

ItHurtsWhenIP

If they have statics available, I don't see why they can't provide one to you ... they will however very likely charge you for the privilege. The last time I asked my ISP, they said it would cost me €5pm for a fixed address.

ComputerTechie

Thanks MMFITWGDV I usually have no problem getting them myself and I have dealt with a lot of other providers even with Satellite Broadband. There is usually a €50 euro fee and a few forms to fill out. I hope to get this resolved with them and if I do I'll post back.

Dero

Maybe they just don't have many addresses to play with. How many customers/devices would they have?

According to whois, they have one /20 block of addresses (91.142.96.0/20), which is 4094 usable host addresses. Of those, the subnet you mentioned (91.142.96.0/24) is used for PPPoE.

ED E

I think its probably a slight communication failure here, sounds like they include a public address with their SME/Ent package but don't in their SOHO/Res packages so to obtain one you may have to upgrade to a package with a significant SLA and thus cost.

If I'm right on this its a bit of a rigid product offering, but nothing illegal or irregular about it.

ComputerTechie

I'll know Monday 9th whether it will be resolved. They give a public static address to their residential customers. The policy makes no sense to me.

9726_9726

They don't NAT customers. You are just behind a routed CPE, same as any ISP.

Clarify with their support that you want bridge mode.