| Note that the IPSec end encode/decode processes change packets. For instance, an incoming packet from an IPSec VPN appears in the prerouting chain with source and destination addresses of the IPSec end-points, but by the time it gets to the forward or input chains the source and destination addresses have been changed. This can cause false positives in the filter tables.
| | Note that the IPSec end encode/decode processes change packets. For instance, an incoming packet from an IPSec VPN appears in the prerouting chain with source and destination addresses of the IPSec end-points, but by the time it gets to the forward or input chains the source and destination addresses have been changed. This can cause false positives in the filter tables.
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