DELL N3000 User Manual

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Configuring Access Control Lists
In general, any rule that specifies matching on an upper-layer protocol field 
should also include matching constraints for as many of the lower-layer as 
where possible. For example, a rule to match packets directed to the well-
known UDP port number 22 (SSH) should also include matching constraints 
on the IP protocol field (protocol=0x11 or UDP) and the source or 
destination IP address. Table 20-2 lists commonly-used EtherTypes numbers:
Figure 20-3 lists commonly-used IP protocol numbers:
Table 20-2. Common EtherType Numbers
EtherType
Protocol
0x0800
Internet Protocol version 4 (IPv4)
0x0806
Address Resolution Protocol (ARP)
0x0842
Wake-on LAN Packet
0x8035
Reverse Address Resolution Protocol (RARP)
0x8100
VLAN tagged frame (IEEE 802.1Q)
0x86DD
Internet Protocol version 6 (IPv6)
0x8808
MAC Control
0x8809
Slow Protocols (IEEE 802.3)
0x8870
Jumbo frames
0x888E
EAP over LAN (EAPOL – 802.1x)
0x88CC
Link Layer Discovery Protocol
0x8906
Fibre Channel over Ethernet
0x9100
Q in Q
Table 20-3. Common IP Protocol Numbers
IP Protocol Number
Protocol
0x00
IPv6 Hop-by-hop option
0x01
ICMP
0x02
IGMP
0x06
TCP