[nemesis-users] ICMP - Redirect - Bad CheckSum

[kecajkecaj <kec...@tl...>]

Hi. 
I'm tring to send a icmp redirect packet as follows:
nemesis icmp -v -d eth0 -i 5 -c 1 -G 192.168.1.20 -qR -S 192.168.1.1 -D 192.168.1.10 -H 00:50:DA:3A:2D:B3  -M 00:07:95:07:DC:ED

packet is injected but in wireshark i can see that a checksum of icmp field is incorrect. I have no idea why it's happening.
Can somebody gives me a clue ?
thx