• FAQs

    Frequently Asked Questions About Bonded ADSL

Will I get a static IP address with our bonded broadband solution?

All of our bonded ADSL solutions are supplied with a range of static IP Addresses. Importantly, as the solutions are truly bonded, the IP range applies to the bonded ADSL solution as a whole, rather than to the individual lines. Truly bonding ADSL in this way ensures that large files are sent and received more quickly and ensures instant failover resilience is built into each link.

How many static public IP addresses do I get with my bonded ADSL connection?

Each Bonded ADSL and Bonded SDSL connection is assigned a /30 IP range, which is a subnet of 4 addresses. Every subnet has the first and last addresses dedicated to the routing of the network, so in practice it gives us 2 usable IP addresses. As we need to give one of these to the Edge Bonder on your site, this gives you 1 usable IP to put onto your firewall as standard. We can also, depending on your needs, assign a larger IP range, which would mean you could have multiple firewalls, or dedicate IPs to a particular server or application. It is important to talk through your IP requirements early on so we can tailor a solution to really fit your business needs. It also makes a difference to us, as every ISP in the country is bound by RIPE, which is the organisation in Europe for maintaining and assigning IP address ranges. Because there are actually a finite number of addresses left on the current scale, each must be justified, so part empty ranges are not spread around the country wasting valuable IP space. Don't worry, we will make sure you have all the IP addresses you need, but part of that process is a simple justification for anything more than the normal standard range. There may also be ways for us to reduce the amount of IPs you currently use with some intelligent network management. Talk to one of our network management experts today.

The routers for my bonded ADSL solution all have private IP addresses, I thought we had a public IP range?

You do have a public IP range for your bonded ADSL link, but this is routed over our private network. You will see that each modem/router has a private IP range similar to those you might use on your own corporate network. Rather than waste valuable public IP space, and also present every network device we have to the internet and therefore security threats, we choose to keep our network private. This is much better for you, as you get a much cleaner connection to the internet for your bonded ADSL solution, and to each of your other sites if you choose to have a multi-site IPSEC VPN. In fact, if you connect each of your sites to our private network, then you greatly simplify your network, and stop the need for point to point connections. Just connect everything to our cloud. All of your network traffic is isolated from our other customers, and you can share a single connection to the internet, rather than have to purchase a separate internet connection for each site. All your sites can then benefit from industry leading bonded ADSL solutions, and private non-internet bases point to point connectivity.

How do the static IP addresses work? Is the static IP address capable of using any of the bonded ADSL connections should one of the connections failover?

Our bonded ADSL and bonded SDSL connections get their public IP range supplied from our central bonding infrastructure. This means it is independent of the broadband lines themselves. The IP stays no matter what line goes down. Other providers often assign IP addresses from one of the ranges that come with the broadband lines. If that particular line goes down, then you lose that address. The resilience you thought you had by bonding in the first place is gone. Some providers will also only map IP addresses to your site using something called Network Address Translation. While we can also do this, we, as standard, do not "NAT" IP addresses, and instead provide a routed /30 or /29 public IP range, giving you a true presence on the internet. NAT'd addresses can stop you from being able to use VOIP or IPSEC VPNs, particularly if you use different providers at different sites. An CIM-VCF bonded broadband connection gives you an unmetered, unfiltered, truly routed connection to the internet. What you then want to use if it for is up to you. We've designed it so that it doesn't matter.

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