For traffic to unknown addresses, or to workloads that are not a part of the mesh, the traffic will just be passed through as is.
To make ztunnel more transparent, the original source IP address will be spoofed.
Additionally, `splice` will be used to make this proxying more efficient when possible.

For traffic in the mesh, things are a bit more complex:

        "mode": "markdown"
      },
      "pluginVersion": "10.1.5",
      "title": "Performance Dashboard README",
      "transparent": true,
      "type": "text"
    },
    {
      "collapsed": false,
      "datasource": {
        "type": "prometheus",
        "uid": "${datasource}"
      },
      "gridPos": {
        "h": 1,

      ### Advanced options ############
      # TODO: convert to real options, env should not be exposed
      env: {}
        # Set this to "external" if and only if you want the egress gateway to
        # act as a transparent SNI gateway that routes mTLS/TLS traffic to
        # external services defined using service entries, where the service
        # entry has resolution set to DNS, has one or more endpoints with

      },
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${datasource}"
          },
          "refId": "A"
        }
      ],
      "transparent": true,
      "type": "text"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${datasource}"
      },
      "fieldConfig": {
        "defaults": {
          "color": {