# Long Running Anycast IPv4 Support, BYO Certs?

**URL:** <https://community.fly.io/t/long-running-anycast-ipv4-support-byo-certs/4205>\
**Category:** Questions / Help\
**Created:** [February 25, 2022, 3:15pm UTC](https://community.fly.io/t/long-running-anycast-ipv4-support-byo-certs/4205 "2022-02-25T15:15:26Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![ignoramous](https://avatars.discourse-cdn.com/v4/letter/i/a9adbd/32.png) [@ignoramous](https://community.fly.io/u/ignoramous)\
**Post date:** [February 25, 2022, 3:59pm UTC](https://community.fly.io/t/long-running-anycast-ipv4-support-byo-certs/4205/2 "2022-02-25T15:59:28Z")

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> Is there an option to push in our own cert for DNS-over-HTTPS (DOH)

This discussion has pointers: [Use Cloudflare Certs to FlyIO - #8 by ignoramous](https://community.fly.io/t/use-cloudflare-certs-to-flyio/3805/8)

> What about bringing in an 2x ‘vanity’ IPs for our DNS resolvers?

Re: BYoIP: [Cloudflare](https://blog.cloudflare.com/bringing-your-own-ips-to-cloudflare-byoip/) and [Vultr](https://www.vultr.com/features/bgp/) let one _anycast_ any IP. [Fly.io](http://Fly.io) should too, but I don’t think they currently do. Though read: [BYO compute resources and external ip addresses - #2 by kurt](https://community.fly.io/t/byo-compute-resources-and-external-ip-addresses/2944/2)

> We’ll need to ensure that our application has long-lived IPv4 addresses associated with it.

This _should_ be the case as long as [Fly.io](http://Fly.io)’s operational (but _would_ it be… I don’t know, perhaps see [Fly.io Terms of Service](https://fly.io/legal/terms-of-service/) Section 1d, and then trigger 1e, because Section 8a and 8c make for an ominous read ;).

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_[View the full topic](https://community.fly.io/t/long-running-anycast-ipv4-support-byo-certs/4205)._