Mailinglist Archive: opensuse (1777 mails)

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Re: [opensuse] Moving to IPv6
  • From: James Knott <james.knott@xxxxxxxxxx>
  • Date: Sat, 11 Sep 2010 15:37:53 -0400
  • Message-id: <4C8BDA91.6030604@xxxxxxxxxx>
Carlos E. R. wrote:
The more you tell me about them, the more incompetent they appear. How does
IPv6 corrupt routing
> tables?
I have seen serious studies, published by the IEEE (IIRC), that current
hardware could not support
the huge routing tables that ipv6 needs (huge number of addresses).


Actually, the opposite is true. With IPv6, it set up to be a hierarchical structure, which greatly reduces the number of routing tables. Because of the way IPv4 grew, it's routing table is a real mess, even after the aggregation that took place several years ago. However, because the addresses are longer, the same number of addresses would require 4x the space to hold them. Regardless, in the original message that I was replying to, it was implied that IPv6 packets on an IPv4 network would corrupt the IPv4 tables, even though with tunneling, as would be required on such a network, they'd never see an IPv6 packet that didn't have an IPv4 header attached to it.




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