On Thu, Jan 30, 2014 at 06:51:59PM +0200, Martin T wrote:
for example there is a small company with /22 IPv4 allocation from RIPE in European region. This company is dual-homed and would like to announce 4x /24 prefixes to both ISPs. Both ISP's update their prefix-lists automatically based on records in RIPE database. For example Level3 uses this practice at least in Europe. If this small company creates a "route" object for it's /22 allocation, then is it enough? Theoretically this would cover all four /24 networks. Or in which situation it is useful/needed to have "route" object for each /24 prefix?
You should create a route object for each route that you announce, if you announce 4 x /24 you should create a route: object for each /24. Some providers will create filters solely based on existing route objects, others will create filters based on all route objects, AND allow up to a /24 regardless. I would err to the safe side. Kind regards, Job ps. Can you please send 20 dollarcent per /24 to my paypal account (job@instituut.net) with the reference "deaggregation fee"?