0 ip 0 hopopt 1 icmp 2 igmp 3 ggp 4 ipencap 5 st 6 tcp 7 cbt 8 egp 9 igp 10 bbn-rcc 11 nvp 12 pup 13 argus 14 emcon 15 xnet 16 chaos 17 udp 18 mux 19 dcn 20 hmp 21 prm 22 xns-idp 23 trunk-1 24 trunk-2 25 leaf-1 26 leaf-2 27 rdp 28 irtp 29 iso-tp4 30 netblt 31 mfe-nsp 32 merit-inp 33 dccp 34 3pc 35 idpr 36 xtp 37 ddp 38 idpr-cmtp 39 tp++ 40 il 41 ipv6 42 sdrp 43 ipv6-route 44 ipv6-frag 45 idrp 46 rsvp 47 gre 48 dsr 49 bna 50 esp 50 ipv6-crypt 51 ah 51 ipv6-auth 52 i-nlsp 53 swipe 54 narp 55 mobile 56 tlsp 57 skip 58 ipv6-icmp 59 ipv6-nonxt 60 ipv6-opts 62 cftp 64 sat-expak 65 kryptolan 66 rvd 67 ippc 69 sat-mon 70 visa 71 ipcv 72 cpnx 73 cphb 74 wsn 75 pvp 76 br-sat-mon 77 sun-nd 78 wb-mon 79 wb-expak 80 iso-ip 81 vmtp 82 secure-vmtp 83 vines 84 ttp 85 nsfnet-igp 86 dgp 87 tcf 88 eigrp 89 ospf 90 sprite-rpc 91 larp 92 mtp 93 ax.25 94 ipip 95 micp 96 scc-sp 97 etherip 98 encap 100 gmtp 101 ifmp 102 pnni 103 pim 104 aris 105 scps 106 qnx 107 a/n 108 ipcomp 109 snp 110 compaq-peer 111 ipx-in-ip 112 vrrp 113 pgm 115 l2tp 116 ddx 117 iatp 118 stp 119 srp 120 uti 121 smp 122 sm 123 ptp 124 isis 125 fire 126 crtp 127 crdup 128 sscopmce 129 iplt 130 sps 131 pipe 132 sctp 133 fc 134 rsvp-e2e-ignore 136 udplite 137 mpls-in-ip