nanog mailing list archives
Re: How to multihome endusers [was: Cogent/Level 3 depeering]
From: "william(at)elan.net" <william () elan net>
Date: Sun, 9 Oct 2005 12:36:11 -0700 (PDT)
Look into multi6 - which basically proposes new network layer above ipbut below tcp and that new layer would provide common end-point for system with multiple ip addresses.
A closer possibility right now is dns "multi-homing" based on incoming request ip, i.e. dns server would answer with one provider ip address if they are coming from cogent routed ip space and for another from l3 routed ip space. This requires integration of bgp routing data with dns which has only been done by private implementations (I'm sure you all know who I mean) so far, but it would be a worthy project to do a open-source implementation of this technique if fragmentation of the internet continues to happen or becomes permanent.
On Sun, 9 Oct 2005, Peter Dambier wrote:
Yes, indeed, I think it makes sense to multihome my humble enduser pc. Right now all I can get is aDSL and it does not matter what provider because they all use DTAG.DE infrastructure. Maybe cable will be choce. It is not as fast as aDSL at least not here and it will take another two or three years until they deploy it. If it does not get shot on site again by the regulation office or the cartell office again. So I will end up having a cable-modem speaking ethernet/PPPoE and an aDSL-modem speaking ethernet/ tcp/ip and DHCP. My ip adresses probably will be 84.167.xxx.xxx for aDSL and 24.xxx.xxx.xxx for the cable. I can talk to no-ip.com, they will allow a second ip for host_look("84.167.252.166","echnaton.serveftp.com","1420295334"). host_name("84.167.252.166","p54A7FCA6.dip.t-dialin.net"). Its entry will look a bit like this one: host_look("81.88.34.51","Kunden2.KONTENT.de","1364730419"). host_name("81.88.34.51","kunden2-1.kontent.de"). host_look("81.88.34.52","Kunden2.KONTENT.de","1364730420"). host_name("81.88.34.52","kunden2-2.kontent.de"). So I will end up with 3 names and 2 ip addresses for my humble host. Do I need BGP now or OSPF or can I rely on RIP. Do I need an AS number? How do I get it? Imagine not a fool like me is asking this but some 32K end users of DTAG.DE connected to a DSLAM at Franfurt/Main in germany. I guess the number of end users disconnected be Cogent and Level 3 is not much smaller. Asbestos parapluis opened. Shoot now! Peter and Karin Dambier :) Valdis.Kletnieks () vt edu wrote:On Sat, 08 Oct 2005 20:41:55 BST, "Stephen J. Wilcox" said:my rule would be if your provider can manage an autonomous system better than you and multihoming isnt a requirement of your business then let them take on the managementI'm willing to bet there's a lot of single-homed customers of both Cogent andL3 that 2 weeks ago didn't think multihoming was a requirement of theirbusiness either, who now are contemplating it. Plus possibly some single-homedcustomers of other large providers as well.Anybody want to start a pool on how many new AS numbers will get issued as a result of this tiff, and what percent will commit a BGP whoopsie that impactsmore than just themselves within the first 6 months?On the other hand, I see a business opportunity to sell new customers insurance against self-inflicted gunshot wounds to the feet here. Some providers might even consider selling a managed service at a slight loss, just for self-defense.. :)
-- William Leibzon Elan Networks william () elan net
Current thread:
- Re: Cogent/Level 3 depeering, (continued)
- Re: Cogent/Level 3 depeering Paul Vixie (Oct 07)
- Re: Cogent/Level 3 depeering Tony Li (Oct 07)
- Re: Cogent/Level 3 depeering Paul Vixie (Oct 08)
- Re: Cogent/Level 3 depeering Stephen J. Wilcox (Oct 08)
- Re: Cogent/Level 3 depeering Valdis . Kletnieks (Oct 08)
- Re: Cogent/Level 3 depeering Paul Vixie (Oct 08)
- OT: Connection restored between feuding Net providers Cogent/L3 Henry Linneweh (Oct 09)
- Re: OT: Connection restored between feuding Net providers Cogent/L3 Stephen J. Wilcox (Oct 09)
- Re: Cogent/Level 3 depeering Stephen J. Wilcox (Oct 09)
- How to multihome endusers [was: Cogent/Level 3 depeering] Peter Dambier (Oct 09)
- Re: How to multihome endusers [was: Cogent/Level 3 depeering] william(at)elan.net (Oct 09)
- Re: How to multihome endusers [was: Cogent/Level 3 depeering] Christopher L. Morrow (Oct 09)
- RE: Cogent/Level 3 depeering David Schwartz (Oct 06)
- Contracts (was: Re: Cogent/Level 3 depeering) Deepak Jain (Oct 06)
- Re: Cogent/Level 3 depeering Daniel Senie (Oct 05)
- Re: Cogent/Level 3 depeering James Spenceley (Oct 05)
- Re: Cogent/Level 3 depeering Richard A Steenbergen (Oct 05)
- Re: Cogent/Level 3 depeering Daniel Roesen (Oct 05)
- Re: Cogent/Level 3 depeering Charles Gucker (Oct 05)
- Re: Cogent/Level 3 depeering Daniel Roesen (Oct 05)
- Re: Cogent/Level 3 depeering Lewis Butler (Oct 07)