* Re: [LARTC] NAT & IMQ
2002-08-10 17:11 [LARTC] NAT & IMQ Daniel Sercaianu
@ 2002-08-11 13:39 ` Patrick McHardy
2002-08-11 13:44 ` Patrick McHardy
2002-08-11 14:53 ` Daniel Sercaianu
2 siblings, 0 replies; 4+ messages in thread
From: Patrick McHardy @ 2002-08-11 13:39 UTC (permalink / raw)
To: lartc
[-- Attachment #1: Type: text/plain, Size: 1688 bytes --]
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
[-- Attachment #2: imqnat.diff --]
[-- Type: text/plain, Size: 409 bytes --]
--- 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 = {
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [LARTC] NAT & IMQ
2002-08-10 17:11 [LARTC] NAT & IMQ Daniel Sercaianu
2002-08-11 13:39 ` Patrick McHardy
@ 2002-08-11 13:44 ` Patrick McHardy
2002-08-11 14:53 ` Daniel Sercaianu
2 siblings, 0 replies; 4+ messages in thread
From: Patrick McHardy @ 2002-08-11 13:44 UTC (permalink / raw)
To: lartc
[-- Attachment #1: Type: text/plain, Size: 2381 bytes --]
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 = {
>
[-- Attachment #2: imqnat.diff --]
[-- Type: text/plain, Size: 409 bytes --]
--- 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 = {
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [LARTC] NAT & IMQ
2002-08-10 17:11 [LARTC] NAT & IMQ Daniel Sercaianu
2002-08-11 13:39 ` Patrick McHardy
2002-08-11 13:44 ` Patrick McHardy
@ 2002-08-11 14:53 ` Daniel Sercaianu
2 siblings, 0 replies; 4+ messages in thread
From: Daniel Sercaianu @ 2002-08-11 14:53 UTC (permalink / raw)
To: lartc
Yes, I think you are wright.
I will it try as soon I get the chance, because these are on a
working server (router) which cannot be rebooted.
Temporarilly I solved the problem by applying the download shapers to the
wright eth.
Thanx,
Daniel Sercaianu
Terranet Virtual Media
sdan@terranet.ro
GSM +40 788 837723
On Sun, 11 Aug 2002, Patrick McHardy wrote:
> 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 = {
> >
>
>
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^ permalink raw reply [flat|nested] 4+ messages in thread