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Diffstat (limited to 'extensions/libipt_u32.man')
| -rw-r--r-- | extensions/libipt_u32.man | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/extensions/libipt_u32.man b/extensions/libipt_u32.man new file mode 100644 index 00000000..7028bd5f --- /dev/null +++ b/extensions/libipt_u32.man @@ -0,0 +1,8 @@ +U32 allows you to extract quantities of up to 4 bytes from a packet, +AND them with specified masks, shift them by specified amounts and +test whether the results are in any of a set of specified ranges. +The specification of what to extract is general enough to skip over +headers with lengths stored in the packet, as in IP or TCP header +lengths. + +Details and examples are in the kernel module source. |