Edit: In my limited understanding of Anycast services I would assume longer prefixes than /48 could be inside of service provider networks where Google potentially has DNS servers setup.
Given the two Google IPv6 DNS addresses:
2001:4860:4860::8888
2001:4860:4860::8844
It seems odd to me that what should (?) be operationally distinct addresses are in the same /48 (ultimately the same /32,/48,/64, etc.) which is what I understand to be the longest prefix that is globally routable. Given that the two DNS addresses are in the same /64, both of their services will at least go partially down with one /48 prefix hijack correct?
redacted#sh ipv6 route vrf redacted 2001:4860:4860::8888
Routing entry for 2001:4860::/32
Known via "bgp redacted", distance 20, metric 0, type external
Route count is 1/1, share count 0
Routing paths:
FE80::214:F600:2B4:65F4, GigabitEthernet0/0/0
MPLS label: nolabel
Last updated 5d19h ago
redacted#sh ipv6 route vrf redacted 2001:4860:4860::8844
Routing entry for 2001:4860::/32
Known via "bgp redacted", distance 20, metric 0, type external
Route count is 1/1, share count 0
Routing paths:
FE80::214:F600:2B4:65F4, GigabitEthernet0/0/0
MPLS label: nolabel
Last updated 5d19h ago
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