Intel PCI User Manual

151

The Ethernet controller saves the first 128 bytes of the wakeup packet in its internal buffer, which 
can be read through the Wakeup Packet Memory (WUPM) after system wakeup.

18+D+S

2

Payload Length

-

Ignore

20+D+S

1

Next Header

3Ah, 00h, 
2Bh, or 
3Ch

Check

ICMP, or IPv6 next 
headers: 
+ routing (2Bh)
+ dest options (3Ch)
+ hop-by-hop (00h)

21+D+S

1

Hop Limit

FFh

Check

22+D+S

16

Source IP Address

-

Ignore

38+D+S

16

Destination IP Address

Ignore

54+D+S

N

Possible IPv6 Next Headers

-

Check

Process headers to 
get next header. 
Header type must be 
routing, destination 
options, or hop-by-
hop.

54+D+S+N

1

Type

87h

Check

Neighbor Solicitation

55+D+S+N

1

Code

00h

Check

56+D+S+N

2

ICMP Header Checksum

-

Ignore

58+D+S+N

4

Reserved

-

Ignore

62+D+S+N

16

Target Address

-

Check

Match IPV6AT[0]

78+D+S+N

N

Possible source link-layer 
address

-

Ignore

...

any

-

-

Ignore

Packet data

last 4

4

CRC

-

Compare

Validate correct