# Network Diagram (BlockDiag)

NwDiag (part of Blockdiag) lets you describe network topologies as text, and automatically renders them as network infrastructure diagrams.

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![Network Diagram](https://help.gocapable.com/images/att1226244206.svg)

```
nwdiag {
  network dmz {
    address = "210.x.x.x/24"

    web01 [address = "210.x.x.1"];
    web02 [address = "210.x.x.2"];
  }
  network internal {
    address = "172.x.x.x/24";

    web01 [address = "172.x.x.1"];
    web02 [address = "172.x.x.2"];
    db01;
    db02;
  }
}

```