Board settings are invalid on MR8300, there is a corrected version for switch

gistfile1.txt

{
	"model": {
		"id": "linksys,mr8300",
		"name": "Linksys MR8300 (Dallas)"
	},
	"network": {
		"lan": {
			"device": "eth0",
			"protocol": "static"
		},
		"wan": {
			"device": "eth1",
			"protocol": "dhcp"
		}
	},
	"switch": {
		"switch0": {
			"enable": true,
			"reset": true,
			"ports": [
				{
					"num": 0,
					"device": "eth0",
					"need_tag": false,
					"want_untag": true
				},
				{
					"num": 1,
					"role": "lan"
				},
				{
					"num": 2,
					"role": "lan"
				},
				{
					"num": 3,
					"role": "lan"
				},
				{
					"num": 4,
					"role": "lan"
				},
				{
					"num": 6,
					"device": "eth1",
					"need_tag": false,
					"want_untag": true
				},
				{
					"num": 5,
					"role": "wan"
				}
			],
			"roles": [
				{
					"role": "lan",
					"ports": "1 2 3 4 0t",
					"device": "eth0"
				},
				{
					"role": "wan",
					"ports": "5 6t",
					"device": "eth1"
				}
			]
		}
	}
}