{
  "R2": {
    "FastEthernet0/0": {
      "v4": "10.10.10.3",
      "v6": "2001:db8:10:1:c806:66ff:fefd:0"
    },
    "FastEthernet1/0": {
      "v4": "10.11.10.7",
      "v6": "2001:db8:13:0:1964:6aaa:33b4:2468"
    },
    "FastEthernet1/1": {
      "v4": null,
      "v6": null
    },
    "GigabitEthernet2/0": {
      "v4": null,
      "v6": null
    },
    "VoIP-Null0": {
      "v4": null,
      "v6": null
    },
    "Null0": {
      "v4": null,
      "v6": null
    },
    "Loopback0": {
      "v4": "102.102.102.102",
      "v6": null
    }
  },
  "R3": {
    "FastEthernet0/0": {
      "v4": "10.10.10.2",
      "v6": "2001:db8:10:1:c807:67ff:fe22:0"
    },
    "FastEthernet1/0": {
      "v4": "10.11.10.6",
      "v6": "2001:db8:13:0:48ca:18c:fbe6:6f84"
    },
    "FastEthernet1/1": {
      "v4": null,
      "v6": null
    },
    "GigabitEthernet2/0": {
      "v4": null,
      "v6": null
    },
    "VoIP-Null0": {
      "v4": null,
      "v6": null
    },
    "Null0": {
      "v4": null,
      "v6": null
    },
    "Loopback0": {
      "v4": "103.103.103.103",
      "v6": null
    }
  },
  "R4": {
    "FastEthernet0/0": {
      "v4": "10.10.10.16",
      "v6": "2001:db8:10:1::1"
    },
    "FastEthernet1/0": {
      "v4": "198.51.100.3",
      "v6": "2001:db7:10:1::1"
    },
    "FastEthernet1/1": {
      "v4": null,
      "v6": null
    },
    "FastEthernet2/0": {
      "v4": null,
      "v6": null
    },
    "FastEthernet2/1": {
      "v4": null,
      "v6": null
    },
    "GigabitEthernet3/0": {
      "v4": null,
      "v6": null
    },
    "Null0": {
      "v4": null,
      "v6": null
    },
    "Loopback0": {
      "v4": "104.104.104.104",
      "v6": null
    }
  },
  "R5": {
    "FastEthernet0/0": {
      "v4": "10.10.10.1",
      "v6": "2001:db8:10:1:c805:31ff:fefc:0"
    },
    "FastEthernet1/0": {
      "v4": null,
      "v6": null
    },
    "FastEthernet1/1": {
      "v4": null,
      "v6": null
    },
    "FastEthernet2/0": {
      "v4": null,
      "v6": null
    },
    "FastEthernet2/1": {
      "v4": null,
      "v6": null
    },
    "GigabitEthernet3/0": {
      "v4": null,
      "v6": null
    },
    "Null0": {
      "v4": null,
      "v6": null
    },
    "Loopback0": {
      "v4": "105.105.105.105",
      "v6": null
    }
  }
}