ebtables的参数中：
-p:指明使用的协议类型，ipv4,arp等可选（使用时必选）详情见/etc/ethertypes
--ip-proto:IP包的类型，1为ICMP包，6为TCP包，17为UDP包，在/etc/protocols下有详细说明
root@hbg:/etc# cat ethertypes
#
# Ethernet frame types
# This file describes some of the various Ethernet
# protocol types that are used on Ethernet networks.
#
# This list could be found on:
# http://www.iana.org/assignments/ethernet-numbers
#
# <name> <hexnumber> <alias1>...<alias35> #Comment
#
IPv4 0800 ip ip4 # Internet IP (IPv4)
X25 0805
ARP 0806 ether-arp #
FR_ARP 0808 # Frame Relay ARP [RFC1701]
BPQ 08FF # G8BPQ AX.25 Ethernet Packet
DEC 6000 # DEC Assigned proto
DNA_DL 6001 # DEC DNA Dump/Load
DNA_RC 6002 # DEC DNA Remote Console
DNA_RT 6003 # DEC DNA Routing
LAT 6004 # DEC LAT
DIAG 6005 # DEC Diagnostics
CUST 6006 # DEC Customer use
SCA 6007 # DEC Systems Comms Arch
TEB 6558 # Trans Ether Bridging [RFC1701]
RAW_FR 6559 # Raw Frame Relay [RFC1701]
AARP 80F3 # Appletalk AARP
ATALK 809B # Appletalk
802_1Q 8100 8021q 1q 802.1q dot1q # 802.1Q Virtual LAN tagged frame
IPX 8137 # Novell IPX
NetBEUI 8191 # NetBEUI
IPv6 86DD ip6 # IP version 6
PPP 880B # PPP
ATMMPOA 884C # MultiProtocol over ATM
PPP_DISC 8863 # PPPoE discovery messages
PPP_SES 8864 # PPPoE session messages
ATMFATE 8884 # Frame-based ATM Transport over Ethernet
LOOP 9000 loopback # loop proto
root@hbg:/etc#
root@hbg:/etc# cat protocols
# Internet (IP) protocols
#
# Updated from http://www.iana.org/assignments/protocol-numbers and other
# sources.
# New protocols will be added on request if they have been officially
# assigned by IANA and are not historical.
# If you need a huge list of used numbers please install the nmap package.
ip 0 IP # internet protocol, pseudo protocol number
#hopopt 0 HOPOPT # IPv6 Hop-by-Hop Option [RFC1883]
icmp 1 ICMP # internet control message protocol
igmp 2 IGMP # Internet Group Management
ggp 3 GGP # gateway-gateway protocol
ipencap 4 IP-ENCAP # IP encapsulated in IP (officially ``IP'')
st 5 ST # ST datagram mode
tcp 6 TCP # transmission control protocol
egp 8 EGP # exterior gateway protocol
igp 9 IGP # any private interior gateway (Cisco)
pup 12 PUP # PARC universal packet protocol
udp 17 UDP # user datagram protocol
hmp 20 HMP # host monitoring protocol
xns-idp 22 XNS-IDP # Xerox NS IDP
rdp 27 RDP # "reliable datagram" protocol
iso-tp4 29 ISO-TP4 # ISO Transport Protocol class 4 [RFC905]
xtp 36 XTP # Xpress Transfer Protocol
ddp 37 DDP # Datagram Delivery Protocol
idpr-cmtp 38 IDPR-CMTP # IDPR Control Message Transport
ipv6 41 IPv6 # Internet Protocol, version 6
ipv6-route 43 IPv6-Route # Routing Header for IPv6
ipv6-frag 44 IPv6-Frag # Fragment Header for IPv6
idrp 45 IDRP # Inter-Domain Routing Protocol
rsvp 46 RSVP # Reservation Protocol
gre 47 GRE # General Routing Encapsulation
esp 50 IPSEC-ESP # Encap Security Payload [RFC2046]
ah 51 IPSEC-AH # Authentication Header [RFC2402]
skip 57 SKIP # SKIP
ipv6-icmp 58 IPv6-ICMP # ICMP for IPv6
ipv6-nonxt 59 IPv6-NoNxt # No Next Header for IPv6
ipv6-opts 60 IPv6-Opts # Destination Options for IPv6
rspf 73 RSPF CPHB # Radio Shortest Path First (officially CPHB)
vmtp 81 VMTP # Versatile Message Transport
eigrp 88 EIGRP # Enhanced Interior Routing Protocol (Cisco)
ospf 89 OSPFIGP # Open Shortest Path First IGP
ax.25 93 AX.25 # AX.25 frames
ipip 94 IPIP # IP-within-IP Encapsulation Protocol
etherip 97 ETHERIP # Ethernet-within-IP Encapsulation [RFC3378]
encap 98 ENCAP # Yet Another IP encapsulation [RFC1241]
# 99 # any private encryption scheme
pim 103 PIM # Protocol Independent Multicast
ipcomp 108 IPCOMP # IP Payload Compression Protocol
vrrp 112 VRRP # Virtual Router Redundancy Protocol
l2tp 115 L2TP # Layer Two Tunneling Protocol [RFC2661]
isis 124 ISIS # IS-IS over IPv4
sctp 132 SCTP # Stream Control Transmission Protocol
fc 133 FC # Fibre Channel