Data Sheet

Ethernet Controller I210 —Packet Types
854
N = (IP HDR length –5) * 4.
F = (TCP header length – 5) * 4.
A.1.3.3 Type 1.3: Ethernet (SNAP/VLAN), IPv4, UDP
This packet type contains all three Ethernet, IPv4, and UDP headers. The header of this type of packet
is split/replicated only if PSRTYPE.PSR_TYPE3 is set.
In this case the packet is split after (42+D+S+N) bytes.
Offset # of bytes Field Value Action Comment
0 6 Destination Address Ignore
MAC Header –
processed by main
address filter, or
broadcast
6 6 Source Address Ignore
12 S=(0/4/8) Possible VLAN Tags (single or double) 0x8100 ****
Compare on
internal VLAN
only
12+S D=(0/8) Possible LLC/SNAP Header
Length +
0xAAAA030000
Compare
Length means a
value smaller than
0x600.
12+D+S 2 Type 0x0800 Compare IP
IP Header
14+D+S 1 Version/ HDR length 0x4X Compare
Check IPv4 and
header length
15+D+S 1 Type of Service - Ignore
16+D+S 2 Packet Length - Ignore
18+D+S 2 Identification - Ignore
20+D+S 2Fragment Info
(xx00)
000h
Compare
22+D+S 1 Time to live - Ignore
23+D+S 1Protocol 0x11 Compare UDP header
24+D+S 2 Header Checksum - Ignore
26+D+S 4 Source IP Address - Ignore
30+D+S 4 Destination IP Address - Ignore
34+D+S N Possible IP Options Ignore
UDP Header
34+D+S+N 2 Source Port Not (0x801) Check Not NFS packet
36+D+S+N 2 Destination Port Not (0x801) Check Not NFS packet
38+D+S+N 2 Length - Ignore
40+D+S+N 2 Checksum - Ignore