TheOldFellow a écrit :
10:45:28.932756 IP (tos 0x0, ttl 53, id 25304, offset 0, flags [none], proto TCP (6), length 44)
192.150.18.101.80 > 192.168.1.2.2901: tcp 24 [bad hdr length 0 - too short, < 20]
[...]
Allowing all input doesn't change a thing.
I thought so. The TCP header of the first reply packet from the server
seems to be malformed, so even though iptables accepted it, the TCP
stack would discard it.
The problem may lie in your router, your network interface card or its
driver. Anyway it does not seem to be related to netfilter/iptables, as
tcpdump sees the packet as malformed before it enters the netfilter
code. Can you try with another router, machine, kernel or network
interface ?
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