Yes and no. Can you half-drown yourself at the watering hole? If you (BGP) peer with the ISP(s) at the Colo facility, then you can advertise your Ip space and it will work at any facility. The bad news is that if you advertised Provider A's Ip space, and then go to a colo not served by Provider A, they will (rightly) want their Ip's back. If your Ip requirements were large enough to justify "Provider independent" space, then it would be portable everywhere. Good Luck, Ejay -----Original Message----- From: Mark J. Scheller [mailto:scheller@u1.net] Sent: Thursday, June 21, 2001 4:15 PM To: Subject: IP Addresses for colocation Hello NANOG, I'm in the process of evaluating whether to transition away from self-hosting web servers to have them hosted at a colocation facility. The obvious advantages being greater capacities for bandwidth, power, cooling, and oh yes, proper methods of putting out a fire (instead of drowning the servers in water if they so much as overheat). The concern I have is this: if we decide a few months down the road that we don't like this particular colocation facility and wish to move to another one across the street, I'd have to renumber all of my hosts. Is it possible to go to any colocation facility with a block of IP addresses in hand and use them? I'm talking about a /24 here, so I cannot request the addresses directly from ARIN, rather I need to get them from some other source. I attempted to get them from our current bandwidth provider, but they seem to be a little taken aback by my request for a block of addresses that will not be routed by them -- in fact, while writing this they called to tell me they will not provide IP space unless they route to it. Is there a better way to get a /24 that can "go anywhere"? Or should I just justify a /24 at the colocation facility and go through the same process should we decide to change? Is there a way to buy a routable /24? Thanks in advance for any advice, on or off list. I will summarize unless the answer is "you're crazy, such things aren't possible" in which case I'll be off drowning my sorrows at a nearby watering hole. Mark J. Scheller (scheller@u1.net)
So the answer is: 1) Use DHCP for all of your colo'd hosts. 2) Use two nameservers that are not colocated, or provided by a provider you feel comfortable with. Then you just update your DNS/DHCP records and renumbering isn't a pain. DJ -----Original Message----- From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of Hire, Ejay Sent: Thursday, June 21, 2001 5:28 PM To: 'Mark J. Scheller' Cc: 'nanog@merit.edu' Subject: RE: IP Addresses for collocation Yes and no. Can you half-drown yourself at the watering hole? If you (BGP) peer with the ISP(s) at the Colo facility, then you can advertise your Ip space and it will work at any facility. The bad news is that if you advertised Provider A's Ip space, and then go to a colo not served by Provider A, they will (rightly) want their Ip's back. If your Ip requirements were large enough to justify "Provider independent" space, then it would be portable everywhere. Good Luck, Ejay -----Original Message----- From: Mark J. Scheller [mailto:scheller@u1.net] Sent: Thursday, June 21, 2001 4:15 PM To: Subject: IP Addresses for colocation Hello NANOG, I'm in the process of evaluating whether to transition away from self-hosting web servers to have them hosted at a colocation facility. The obvious advantages being greater capacities for bandwidth, power, cooling, and oh yes, proper methods of putting out a fire (instead of drowning the servers in water if they so much as overheat). The concern I have is this: if we decide a few months down the road that we don't like this particular colocation facility and wish to move to another one across the street, I'd have to renumber all of my hosts. Is it possible to go to any colocation facility with a block of IP addresses in hand and use them? I'm talking about a /24 here, so I cannot request the addresses directly from ARIN, rather I need to get them from some other source. I attempted to get them from our current bandwidth provider, but they seem to be a little taken aback by my request for a block of addresses that will not be routed by them -- in fact, while writing this they called to tell me they will not provide IP space unless they route to it. Is there a better way to get a /24 that can "go anywhere"? Or should I just justify a /24 at the colocation facility and go through the same process should we decide to change? Is there a way to buy a routable /24? Thanks in advance for any advice, on or off list. I will summarize unless the answer is "you're crazy, such things aren't possible" in which case I'll be off drowning my sorrows at a nearby watering hole. Mark J. Scheller (scheller@u1.net)
If you can get your hands on a portable /24 from the swamp, you will not need to speak BGP with your colo provider. Simply have it in your contract that they will advertise the /24 for you, and route it to your port on the switch/router. Any colo provider that would refuse to advertise a portable /24 for a customer is not worth bothering with. How to get your hands on a portable /24 is left as an exercise to the reader :-) BTW how much would you be willing to pay for a /24? K On Thu, 21 Jun 2001, Hire, Ejay wrote:
Yes and no. Can you half-drown yourself at the watering hole?
If you (BGP) peer with the ISP(s) at the Colo facility, then you can advertise your Ip space and it will work at any facility. The bad news is that if you advertised Provider A's Ip space, and then go to a colo not served by Provider A, they will (rightly) want their Ip's back. If your Ip requirements were large enough to justify "Provider independent" space, then it would be portable everywhere.
Good Luck, Ejay
-----Original Message----- From: Mark J. Scheller [mailto:scheller@u1.net] Sent: Thursday, June 21, 2001 4:15 PM To: Subject: IP Addresses for colocation
Hello NANOG,
I'm in the process of evaluating whether to transition away from self-hosting web servers to have them hosted at a colocation facility. The obvious advantages being greater capacities for bandwidth, power, cooling, and oh yes, proper methods of putting out a fire (instead of drowning the servers in water if they so much as overheat).
The concern I have is this: if we decide a few months down the road that we don't like this particular colocation facility and wish to move to another one across the street, I'd have to renumber all of my hosts. Is it possible to go to any colocation facility with a block of IP addresses in hand and use them? I'm talking about a /24 here, so I cannot request the addresses directly from ARIN, rather I need to get them from some other source. I attempted to get them from our current bandwidth provider, but they seem to be a little taken aback by my request for a block of addresses that will not be routed by them -- in fact, while writing this they called to tell me they will not provide IP space unless they route to it.
Is there a better way to get a /24 that can "go anywhere"? Or should I just justify a /24 at the colocation facility and go through the same process should we decide to change? Is there a way to buy a routable /24?
Thanks in advance for any advice, on or off list. I will summarize unless the answer is "you're crazy, such things aren't possible" in which case I'll be off drowning my sorrows at a nearby watering hole.
Mark J. Scheller (scheller@u1.net)
participants (3)
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Deepak Jain -
Hire, Ejay -
Krzysztof Adamski