nylon

Nylon is a self-healing WireGuard mesh that routes around failures. If a link goes down, nylon reroutes traffic through the next-best path in seconds. No manual intervention, no central coordination servers.

See how nylon compares to Tailscale, Nebula, and DIY setups →

Here’s another example

Here is a network of 5 nodes, where the numbers on the edges represent the routing metric (nylon uses latency).

Note

Nylon does not require a fully connected network. Nodes forward packets on behalf of their neighbours, so routing works as long as any path exists between two nodes.

graph LR
    vps --- |2| charlie
    vps --- |2| alice
    eve --- |1| bob
    vps --- |5| eve
    alice --- |1| bob

central.yaml

routers:
  - id: vps
    pubkey: dJcUE1qnXCQ5x8pMhFb/MZab7YrBaaHcrgfbmQI0MW4=
    addresses: [10.0.0.1]
    endpoints:
      - "vps.encodeous.ca"
  - id: alice
    pubkey: xmfAovAKN4AY5ocK5s+/VsG9I27KrQ13Vzb0HOsLKAs=
    addresses: [10.0.0.2]
  - id: bob
    pubkey: 4GfHHSyVpXc+wkbjyIIONERa6Xf5EafB0nVGZLf2r2o=
    addresses: [10.0.0.3]
    endpoints:
      - "192.168.1.19:57175"
  - id: charlie
    pubkey: WcCkKijU0brYnRzxk867HTDyYFf/cqiKTTOLSxtWoFc=
    addresses: [10.0.0.4]
  - id: eve
    pubkey: 2mXTTD+FYdtJm/v1vSHz8qimvCucjW9vY+nLYacXJFE=
    addresses: [10.0.0.5]

graph:
  - trio = alice, charlie, eve
  - vps, trio
  - bob, eve
  - bob, alice

From alice, nylon selects the path of least metric to each destination (highlighted):

graph LR
    vps --- |2| charlie
    vps --- |2| alice
    eve --- |1| bob
    vps --- |5| eve
    alice --- |1| bob
    linkStyle 0 stroke:#4caf50,stroke-width:2px
    linkStyle 1 stroke:#4caf50,stroke-width:2px
    linkStyle 2 stroke:#4caf50,stroke-width:2px
    linkStyle 4 stroke:#4caf50,stroke-width:2px

If the alice - bob link goes down, the network automatically reconfigures around the failure:

graph LR
    vps --- |2| charlie
    vps --- |2| alice
    eve --- |1| bob
    vps --- |5| eve
    alice --- |1| bob
    linkStyle 0 stroke:#4caf50,stroke-width:2px
    linkStyle 1 stroke:#4caf50,stroke-width:2px
    linkStyle 2 stroke:#4caf50,stroke-width:2px
    linkStyle 3 stroke:#4caf50,stroke-width:2px
    linkStyle 4 stroke:#e53935,stroke-width:2px,stroke-dasharray:5