Anycast but for egress

Daniel Corbe daniel at corbe.net
Tue Jul 27 18:37:52 UTC 2021


> On Jul 27, 2021, at 12:54, Vimal <j.vimal at gmail.com> wrote:
> 
> (Unsure if this is the right forum to ask this question, but here goes:)
> 
> From what I understand, IP Anycast can be used to steer traffic into a server that's close to the client.
> 
> I am curious if anyone here has/encountered a setup where they use anycast IP on their gateways... to have a predictable egress IP for their traffic, regardless of where they are located?
> 
> For example, a search engine crawler could in principle have the same IP advertised all over the world, but it looks like they don't...  I wonder why?
> 
> -- 
> Vimal
> 

Unless you’re twisting knobs, egress traffic should already exit your network at the closest possible egress point to its origin.  Is your intention to carry the traffic for longer than that?



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