ipq_set_verdict gives errors for multicast packets but works fine for unicast (kernel 2.6)

[Maarten Wijnants]

Hello Pablo (and rest of list),

Thanks for your reply,

> Maarten Wijnants wrote:
>
>> This all worked fine on kernel version 2.4. However, I have just upgraded 
>> to kernel 2.6.6, and all of a sudden my application doesn't work anymore.
>
>
> Update to lastest kernel stable 2.6. Patrick McHardy pushed forward some 
> patches which fixes some problems in ip_queue some time ago.
>

Well I tried a variety of kernels already. More specifically, I started out 
with kernel 2.4.20. Everything works fine on this kernel version. 
Afterwards, I have tried kernel 2.4.28, 2.6.6, 2.6.9 and 2.6.10. I even 
patched 2.6.10 with the latest snapshot from kernel.org. On none of these 
kernel versions the rule

ipq_set_verdict(ipq_handle, m->packet_id, NF_ACCEPT, m->data_len, packet);

works for an altered packet with a multicast destination. For unicast 
destination packets, the rule works on any kernel version. On kernel 2.4.20, 
this rule works perfectly correct in all situations (i.e. both unicast and 
multicast destinations). I have absolutely no idea what is going wrong in 
the other kernel versions. Any ideas?

Thanks in advance.

Kind regards,
Maarten