82598EB Datasheet, PDF (154/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - Wake Up
12
2
Type
0x0806
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ARP
14
2
Hardware Type
0x0001
Compare
16
2
Protocol Type
0x0800
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18
1
Hardware Size
0x06
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19
1
Protocol Address Length
0x04
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20
2
Operation
0x0001
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22
6
Sender Hardware Address
-
Ignore
28
4
Sender IP Address
-
Ignore
32
6
Target Hardware Address
-
Ignore
38
4
Target IP Address
IP4AT
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Might match any of four values in
IP4AT
3.3.2.3.1.6 Directed IPv4 Packet
The 82598 supports receiving Directed IPv4 packets for wakeup if the IPV4 bit is set in the WUFC
register. Four IPv4 addresses are supported and are programmed in the IPv4 Address Table (IP4AT). A
successfully matched packet must pass L2 address filtering, a Protocol Type of 0x0800, and one of the
four programmed IPv4 addresses. The 82598 also handles Directed IPv4 packets that have VLAN
tagging on both Ethernet II and Ethernet SNAP types.
Offset
0
# of
Bytes
Field
6
Destination Address
6
6
Source Address
12
8
Possible LLC/SNAP
Header
12
4
Possible VLAN Tag
12
2
Type
14
1
Version/ HDR length
15
1
Type of Service
16
2
Packet Length
Value
Action
Compare
Skip
Skip
0x0800
0x4X
-
-
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Compare
Compare
Ignore
Ignore
Comment
MAC Header – processed by main address
filter
IP
Check IPv4
154