"ip": "0"
"hopopt": "0"
"icmp": "1"
"igmp": "2"
"ggp": "3"
"ipencap": "4"
"st": "5"
"tcp": "6"
"egp": "8"
"igp": "9"
"pup": "12"
"udp": "17"
"hmp": "20"
"xns-idp": "22"
"rdp": "27"
"iso-tp4": "29"
"dccp": "33"
"xtp": "36"
"ddp": "37"
"idpr-cmtp": "38"
"ipv6": "41"
"ipv6-route": "43"
"ipv6-frag": "44"
"idrp": "45"
"rsvp": "46"
"gre": "47"
"esp": "50"
"ah": "51"
"skip": "57"
"ipv6-icmp": "58"
"ipv6-nonxt": "59"
"ipv6-opts": "60"
"rspf": "73"
"vmtp": "81"
"eigrp": "88"
"ospf": "89"
"ax.25": "93"
"ipip": "94"
"etherip": "97"
"encap": "98"
"#": "99"
"pim": "103"
"ipcomp": "108"
"vrrp": "112"
"l2tp": "115"
"isis": "124"
"sctp": "132"
"fc": "133"
"mobility-header": "135"
"udplite": "136"
"mpls-in-ip": "137"
"manet": "138"
"hip": "139"
"shim6": "140"
"wesp": "141"
"rohc": "142"