SmartNA-X 1G/10G Modular | IPP Module Preset Matches and Transforms |
195
SmartNA-X
™
1G/10G User Guide 1.4
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2015 Network Critical Solutions Limited
Match name
Match definition (start bit, width, value)
GRE-CKS-L=4-IPv6
432, 9, 97
Table 17: PPTP GRE header using Key, Sequence and Acknowledgement fields
Match name
Match definition (start bit, width, value)
GRE-KSA-L=4-IPv4
9, 97, 65
GRE-KSA-L=4-IPv6
9, 97, 65
Layer above TCP/UDP
The following Matches can be used to match GTPv1, GTPv2, and GTP' headers.
Table 18: GTPv1 (UDP only)
Match name
Match definition (start bit, width, value)
GTP-v1-IPv4
336, 3, 1
GTP-v1-IPv6
496, 3, 1
Table 19: Test PT bit (not GTP')
Match name
Match definition (start bit, width, value)
GTP-v1-not'-IPv4
339, 1, 1
GTP-v1-not'-IPv6
499, 1, 1
The following presets match for checking the GTP header is not extended. Any of these 3 bits being set extends the length
from 8 to 12 bytes.
Table 20: Test the length is not extended
Match name
Match definition (start bit, width, value)
GTP-v1-L=2-IPv4
341, 3, 0