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Your incumbent won't do filtering. Your incumbent won't maintain proper 'route' objects https://www.ripe.net/manage-ips-and-asns/db/support/managing-route-objec
by betaby 9y ago
Your incumbent won't do filtering.
Your incumbent won't maintain proper 'route' objects https://www.ripe.net/manage-ips-and-asns/db/support/managing-route-objects-in-the-irr https://www.ripe.net/manage-ips-and-asns/db/support/managing...
Your shoestring independent ISP won't to that either.
Who is left? Tier1 ISP and some of them do BCP38 filtering sometimes on some ports.
- walterkobayashi 9y ago75% ISP's in Europe don't do IP Filtering.
- citrin_ru 9y agoAccording to CAIDA statistics much less that 75% don't filter. See map: https://spoofer.caida.org/summary.php https://spoofer.caida.org/summary.php
- grahamburger 9y agoAs someone who has been doing 'shoestring independent ISPs' for almost 15 years my impression is that nearly all upstream providers (the ones we buy service from - not always but sometimes tier 1 providers) do outgoing IP filtering. Whenever I get a new IPv4 allocation from ARIN (at least when we used to be able to do that - they're all gone now) we had to go through a process with our upstream provider so that they would allow our BGP advertisements for that block as well as allow those source addresses to route through their network.
- sathackr 9y agoThey may filter what routes you can advertise via BGP, but nearly every Tier 1(And most Tier 2) providers will accept traffic sourced from any IP address. I handle about 10 different connections and can source traffic from any IP on all of them.