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Any way to learn BGP and get a private ASN?

FubukiboxFubukibox Member
in General

I was thinking of joining dn42 and play around bgp with wireguard. Is dn42 the only website, iirc i remember there was others but i can't recall. I'm not sure if i could use 2 VPS running bird & wireguard and mesh them together.

Thanked by 2nghialele mandala

Comments

  • NeoonNeoon Community Contributor, Veteran

    you can use a private ASN right now, setup peering and play around with it.
    Nothing to fear.

    No idea how it works with dns42 though.

    Thanked by 1Fubukibox
  • sixsix Member

    I would recommend dn42 to start off (and peer with other people). Technically, you could even just do BGP across your servers through tunnels with a private ASN.

    Thanked by 2Fubukibox mandala
  • jmgcaguiclajmgcaguicla Member

    I'm not sure if i could use 2 VPS running bird & wireguard and mesh them together.

    You can, this is what I use for my 67 MTU© VyOS EVPN fabric backed by a WireGuard mesh™ which I use to interconnect Proxmox nodes with using the EVPN SDN.

    It's just extremely annoying at higher node counts without automation because wg routing is based on AllowedIPs (and since each peer needs 0.0.0.0/0,::/0) which means you'd have to set 1 tunnel up for each peer, and then repeat that for each node.

    I used to be on dn42 and had a regular ASN at some point, but my internal setup is what I've had the most fun with BGP.

    For absolutely no reason, I run redundant recursive nameservers across regions and anycast a /32 for it (I do a DNS health check and withdraw the announcement if it fails).

    I also run Kubernetes with Cilium using the BGP control plane so Service IPs get announced into the network. Fun stuff.

    Thanked by 4Hitori0221 satorik Fubukibox mandala
  • xxslxxsl Member, LIR
    edited December 2025

    @Fubukibox

    I'm not sure if i could use 2 VPS running bird & wireguard and mesh them together.

    Yes, BGP (bird) is just a program adding/editing/deleting routes automatically, "an automatic routing table editor" for linux

    What you do for your wireguard tunnel using "ip route" can be replaced by bird.

    Thanked by 3yoursunny Fubukibox mandala
  • yoursunnyyoursunny Member, IPv6 Advocate

    Mentally strong people play with BGP on the public Internet using real ASN.

    Thanked by 15Hitori0221 Peppery9 satorik xxsl fluffernutter puerklint Fubukibox Porlam gremeyer mandala tux bdspice ipguru Smigit beanman109
  • FubukiboxFubukibox Member

    got bird installed yesterday now im trying to figure out how to use AS65333 on my Swiss vps since i am going to use 10.0.11.1(AS65222 on my other vps) (Wireguard main server, CH VPS) to 10.0.11.3 (my other vps)

    BIRD version 2.17.1(Debain 13, CH VPS) (10.0.11.1)
    BIRD version 1.6.8 (Ubuntu 22.04, Oracle ARM VPS) (10.0.11.3)

    i could use my other idle vps running Debain 13 still with bird v2.17.1 but idk tbh, haven't touched it in a while

  • ipguruipguru Member
    edited December 2025

    Get updated versions of Bird 2. That will help with the learning curve, at least on the current version.

    https://pkg.labs.nic.cz/doc/?project=bird

    Join DN42 and get an ASN, live life to the fullest.

    Thanked by 2Fubukibox nghialele
  • SplitIceSplitIce Member, Host Rep

    dns42 is how most people learn, then get a real ASN and be careful.

    @yoursunny said: Mentally strong people play with BGP on the public Internet using real ASN.

    Most people are probably trusted with a real ASN far earlier than they should be

    Thanked by 1yoursunny
  • FubukiboxFubukibox Member

    @ipguru said:
    Get updated versions of Bird 2. That will help with the learning curve, at least on the current version.

    https://pkg.labs.nic.cz/doc/?project=bird

    Join DN42 and get an ASN, live life to the fullest.

    i didn't know there was bird 3. thanks

    Thanked by 1nghialele
  • yoursunnyyoursunny Member, IPv6 Advocate

    @SplitIce said:
    dns42 is how most people learn, then get a real ASN and be careful.

    @yoursunny said: Mentally strong people play with BGP on the public Internet using real ASN.

    Most people are probably trusted with a real ASN far earlier than they should be

    We had routing loops multiple times, but so far haven't caused any route leaks or similar international incident.

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