Nfs client inputs and run tcpdump on the machine while it is happening What I do know is that if I run the exhaustive tests with the same set of Like udp_manip_pkt() has the same problem as well. It appears the case we are hitting is the skb_checksum_helpĬase because we are not running any NAT rewrites on it. I am not yet sure if this is where the bug is or if the final bit ofĬode in ip_nat_mangle_udp_packet() which also does not account for theĠ -> -1 transition. That it goes out on the wire with a checksum of 0 (no checksum).
#TURN OFF BYPASS CHECKSUM MULTIPATCH FULL#
From my reading of that function, if theįinal full udp checksum would be 0, it is not translated to -1 which means Which would rewrite it ends up ignoring the partial checksum and re-computes Running on a system with NAT enabled, but without any rules So far so good - it then pushes it down to ip who ultimately feeds it to the
I think this is a problem for allįlavors of RHEL5 going back to GA in 2007.
The problem is seen in RHEL5.2 2.6.18-92.1.22 kernels and as well Udp_push_pending_frames() does the partial checksum on the header + src/dst addrs. If a udp datagram which would normally compute a checksum of 0, then => -1 (0xffff) is sent on a system with CSO (e.g.
This output for original firmware Scan Time: 11:23:35 I have this Ubiquiti firmware and I successfully extract the firmware and rebuild it, I modify Squashfs filesystem and rebuild it using build-firmware.sh script from firmware-mod-kit, but the problem I have is CRC Not the same as the original value, so how can I bypass CRC checksum also what is this "CRC32 polynomial table, big endian"
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