* NF_IP_PRE_ROUTING?
@ 2005-09-16 19:45 scarab
2005-09-17 1:30 ` NF_IP_PRE_ROUTING? scarab
0 siblings, 1 reply; 2+ messages in thread
From: scarab @ 2005-09-16 19:45 UTC (permalink / raw)
To: netfilter-devel
Hi
I wrote simple linux firewall (nf_hook based). Below is part of that code:
------------
static struct nf_hook_ops lpf_nfh;
lpf_nfh.hook = lpf_hook_fn;
lpf_nfh.hooknum = NF_IP_PRE_ROUTING;
lpf_nfh.pf = PF_INET;
lpf_nfh.priority = NF_IP_PRI_FIRST;
nf_register_hook(&lpf_nfh);
--------------
I have question. It should get only incoming packets so why it takes outgoing
to? If i will use NF_IP_POST_ROUTING [4] then it should get outgoing packets
right? I found that diagram in "Linux netfilter hacking howto":
--->[1]--->[ROUTE]--->[3]--->[4]--->
| ^
| |
| [ROUTE]
v |
[2] [5]
| ^
| |
v |
Can anyone tell me why it works that way?
Thank you
PS. Sorry for my poor english
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: NF_IP_PRE_ROUTING?
2005-09-16 19:45 NF_IP_PRE_ROUTING? scarab
@ 2005-09-17 1:30 ` scarab
0 siblings, 0 replies; 2+ messages in thread
From: scarab @ 2005-09-17 1:30 UTC (permalink / raw)
To: netfilter-devel
Sorry, nevermind
^ permalink raw reply [flat|nested] 2+ messages in thread
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2005-09-16 19:45 NF_IP_PRE_ROUTING? scarab
2005-09-17 1:30 ` NF_IP_PRE_ROUTING? scarab
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