IP Geolocation with Anycast IP addresses

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IP Geolocation with Anycast IP addresses

L0 Member

Hi there,

 

I am wondering how geolocation is working with IP addresses where anycast is used.

Anycast addresses are shared by multiple server, typically with different locations.

 

How is such an address assigned to a particular country/region in the Geolocation DB?

Does anybody know?

 

Thanks,

Sylvia

 

 

2 REPLIES 2

Cyber Elite
Cyber Elite

@Sylvia2,

I don't think there's any rhyme or reason for where these get placed. CloudFlare's 1.1.1.1 is currently listed in Australia, Google's 8.8.8.8 is listed in the United States, along with Quad9's 9.9.9.9. 

L5 Sessionator

I see the same for various public DNS at the moment, though I have had problems with them changing in the past. So I created a custom region code "CDN" in Objects -> Regions and placed any kind of generic anycast/CDN addresses that I want to communicate with. Use my custom CDN region, in addition to standard country region codes, as the destination in outbound rules.

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