I'm continuing in my quest to provide a more resilient comms infrastructure for my medium sized business. We currrently have a single 8Mbps ADSL line. We host a number of customer systems and therefore need something that provides a good level of resilience. Bandwidth does not seem to be an issue for us at present, although satelite sites can tend to run a little slow of VPN (I'm assuming this is due to restricted upload speeds of ADSL?). I have ISA sat at the front of my network with a single static IP address at present. My firewall router (with dynamic IP from BT) passes through all (allowed) traffic to my ISA box.
Leased lines are still pretty expensive, so I've been looking at the Bonded ADSL solution. I don't know if that's the right solution for me.
Basically, there are managed solutions out there which cost about ÃƒÂ‚Ã‚Â£500 to setup and ÃƒÂ‚Ã‚Â£300 a month thereafter. Alternatively, I could just get a second ADSL line (os SDSL) in and buy a dual WAN router which I understand will do the same thing for a one off cost of about ÃƒÂ‚Ã‚Â£200.
I have a few questions really:
1. What are the differences between a DIY solution and the provided managed solution?
2. Does this sound like the right solution for me?
3. What other options are available and how much do they cost (very roughly)?
4. I'm still at the mercy of the BT exchange and probably the same circuit. Can I tell BT / my other ISP to use a different circuit / card within the same exchange for my second line?
Hope that all makes sense and there's someone able to help. Any other solutions and suggests you may have are greatfully received.
I'm a skilled IT professional but don't know a huge amount about the comms side of things outside of my LAN other than the basic ADSL routers etc.