sorry last patch was broken, this one is ok.
patrick
Patrick McHardy wrote:
> Hi Daniel,
>
> Daniel Sercaianu wrote:
>
>> I have the following problems:
>> I cannot shape the ip xxx.xxx.xxx.xxx when I do SNAT or MASQUERADE with
>> them. Otherwise when I remove these two iptables lines the shaping works
>> perfectly.
>>
>> It is very important for me to shape the xxx.xxx.xxx.xxx ip and not the
>> yyy.yyy.yyy.yyy. When I tried to shape yyy.yyy.yyy.yyy, it worked.
>>
>> What rules should be added to make this possible?
>>
>>
>> My iptables rules are:
>>
>> iptables -A PREROUTING -t mangle -s xxx.xxx.xxx.xxx -j MARK --set-mark 1
>> iptables -A POSTROUTING -t nat -s xxx.xxx.xxx.xxx -j SNAT --to
>> zzz.zzz.zzz.zzz -o eth4
>>
>>
>>
>> iptables -t mangle -I PREROUTING -j IMQ
>> ip link set imq0 up
>>
>>
>> ip rule shows the following output:
>>
>> 32764: from zzz.zzz.zzz.0/24 lookup ew
>> 32765: from all fwmark 1 lookup ew
>> 32766: from all lookup main
>> 32767: from all lookup default
>>
>>
>>
>>
>> My tc + htb rule look like this:
>>
>> /sbin/tc qdisc add dev imq0 root handle 1: htb default 200 r2q 3
>> /sbin/tc class add dev imq0 parent 1:0 classid 1:1 htb rate 100Mbit
>> ceil 100Mbit burst 2k prio 5
>>
>> /sbin/tc filter add dev imq0 parent 1:0 protocol ip prio 5 handle 1:
>> u32 divisor 256
>>
>> /sbin/tc class add dev imq0 parent 1:1 classid 1:2 htb rate 512kbit
>> ceil 512kbit burst 2k prio 5
>> /sbin/tc qdisc add dev imq0 parent 1:2 handle 10: sfq quantum 1514b
>> perturb 10
>> /sbin/tc filter add dev imq0 parent 1:0 protocol ip prio 5 u32 match
>> ip dst xxx.xxx.xxx.xxx flowid 1:2
>
>
>
> If i understood you right this is probably not working because imq sees
> packets before zzz.zzz.zzz.zzz is dnated back to xxx.xxx.xxx.xxx. please
> try the attached patch.
>
>
> bye
>
> patrick
>
>
> ------------------------------------------------------------------------
>
> --- imq.c.orig Sun Aug 11 15:30:24 2002
> +++ imq.c Sun Aug 11 15:31:17 2002
> @@ -37,7 +37,7 @@
> imq_nf_hook,
> PF_INET,
> NF_IP_PRE_ROUTING,
> - NF_IP_PRI_MANGLE + 1
> + NF_IP_PRI_NAT_DST + 1
> };
>
> static struct nf_hook_ops imq_egress_ipv4 = {
> @@ -54,7 +54,7 @@
> imq_nf_hook,
> PF_INET6,
> NF_IP6_PRE_ROUTING,
> - NF_IP6_PRI_MANGLE + 1
> + NF_IP6_PRI_NAT_SRC + 1
> };
>
> static struct nf_hook_ops imq_egress_ipv6 = {
>
--- imq.c.orig Sun Aug 11 15:30:24 2002
+++ imq.c Sun Aug 11 15:31:17 2002
@@ -37,7 +37,7 @@
imq_nf_hook,
PF_INET,
NF_IP_PRE_ROUTING,
- NF_IP_PRI_MANGLE + 1
+ NF_IP_PRI_NAT_DST + 1
};
static struct nf_hook_ops imq_egress_ipv4 = {
@@ -54,7 +54,7 @@
imq_nf_hook,
PF_INET6,
NF_IP6_PRE_ROUTING,
- NF_IP6_PRI_MANGLE + 1
+ NF_IP6_PRI_NAT_DST + 1
};
static struct nf_hook_ops imq_egress_ipv6 = {
