Mysterious IP Addresses when using ZeroTier with torrents

[alexeikomarov4]

Hey all, I use ZeroTier to create an internal torrent to share files with a couple of friends. When I start the torrent from another device in my home network that’s also connected to ZeroTier (for testing purposes), the torrent client lists a couple of weird peer IPs at first (like my computer’s public IP) for a couple of seconds before they disapper and my computer’s internal ZeroTier IP shows up and the downloading starts.

Keep in mind that this network is behind CG-NAT and a firewall, not to mention my computer’s firewall. So there’s no way connections are coming in outside of ZeroTier.

Some of these weird IPs include 52.53.229.168 and 54.215.207.56.
Do these belong to ZeroTier? What purpose do they serve?

[zt-grant]

Those IPs are not owned by ZeroTier and do not have anything to do with ZeroTier. I can’t tell you what they are, but I can tell you that they’re not talking to your machine via ZeroTier unless you’ve set up machines in the AWS us-west-1 region & authorized them on your ZeroTier network. And even if you did, they’d show up in your torrent client as the ZT address, not a publicly accessible IP address.

Only thing I can think of is that it’s your torrent client speaking to machines on those public IP addresses for some reason. It’s not ZeroTier though.

; <<>> DiG 9.10.6 <<>> -x 52.53.229.168
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13810
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;168.229.53.52.in-addr.arpa.	IN	PTR

;; ANSWER SECTION:
168.229.53.52.in-addr.arpa. 300	IN	PTR	ec2-52-53-229-168.us-west-1.compute.amazonaws.com.

;; Query time: 44 msec
;; SERVER: 10.0.0.3#53(10.0.0.3)
;; WHEN: Tue Jan 26 14:53:10 PST 2021
;; MSG SIZE  rcvd: 144

; <<>> DiG 9.10.6 <<>> -x 54.215.207.56
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 9666
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;56.207.215.54.in-addr.arpa.	IN	PTR

;; ANSWER SECTION:
56.207.215.54.in-addr.arpa. 9	IN	PTR	ec2-54-215-207-56.us-west-1.compute.amazonaws.com.

;; Query time: 44 msec
;; SERVER: 10.0.0.3#53(10.0.0.3)
;; WHEN: Tue Jan 26 14:53:25 PST 2021
;; MSG SIZE  rcvd: 144