[LARTC] IMQ question

[LARTC] IMQ question

[Ciprian Niculescu]

whitch is the logic in this peace of code

iptables -t mangle -A PREROUTING -j IMQ
iptables -t mangle -A PREROUTING -s 1.2.3.4 -j MARK --set-mark 1

and in the imq0 i have a class that handle the pachets marked with 1

this works, the question is why?

beacouse i understand that:
the pachet first enter the IMQ table, and in the queue, after that he
exit and continue with the next rule in the PREROUTING, witch is the
mark.

i must got it wrong


C

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Re: [LARTC] IMQ question

[Martin Devera]

The first line only mark packet. After it leaves iptables it
will enter IMQ because of the mark.
devik

On Sun, 5 May 2002, Ciprian Niculescu wrote:

> whitch is the logic in this peace of code
>
> iptables -t mangle -A PREROUTING -j IMQ
> iptables -t mangle -A PREROUTING -s 1.2.3.4 -j MARK --set-mark 1
>
> and in the imq0 i have a class that handle the pachets marked with 1
>
> this works, the question is why?
>
> beacouse i understand that:
> the pachet first enter the IMQ table, and in the queue, after that he
> exit and continue with the next rule in the PREROUTING, witch is the
> mark.

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[LARTC] imq question

[Alin Nonosel]

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Hi

I've a stupid question. How can I shape upload using IMQ?
Instead of putting a rule in iptables in PREROUTING should i use POSTROUTING?
And another question is, can I make routing rule based on ip addresses assigned by iptables to an imq device?
The idea is, let's say i have some rules in iptables like: -t mangle -A PREROUTING -s 192.168.0.0/16 -j IMQ --todev 0
Can i route this class thru another ip, something like fwmark is doing? with iptables marking the packets and ip rule fwmark?

Best regards,
Alin

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Re: [LARTC] imq question

[Roy]

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You cant shape router upload or imq will crash.
also that imq will not be able to shape traffic per each loacal ip with filters, but you can easily mark packets with iptables in forward of prerouting chain.



  ----- Original Message ----- 
  From: Alin Nonosel 
  To: lartc@mailman.ds9a.nl 
  Sent: Tuesday, August 24, 2004 1:32 AM
  Subject: [LARTC] imq question


  Hi

  I've a stupid question. How can I shape upload using IMQ?
  Instead of putting a rule in iptables in PREROUTING should i use POSTROUTING?
  And another question is, can I make routing rule based on ip addresses assigned by iptables to an imq device?
  The idea is, let's say i have some rules in iptables like: -t mangle -A PREROUTING -s 192.168.0.0/16 -j IMQ --todev 0
  Can i route this class thru another ip, something like fwmark is doing? with iptables marking the packets and ip rule fwmark?

  Best regards,
  Alin

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Re: [LARTC] imq question

[Alin Nonosel]

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Hmm.. After a few hour of reading and testing finally it's working. IMQ upload limiting and tc with ip filter. What do you mean by that? It is working.. And so far seems stable..

  ----- Original Message ----- 
  From: Roy 
  To: Alin Nonosel ; lartc@mailman.ds9a.nl 
  Sent: Monday, August 23, 2004 6:45 AM
  Subject: Re: [LARTC] imq question


  You cant shape router upload or imq will crash.
  also that imq will not be able to shape traffic per each loacal ip with filters, but you can easily mark packets with iptables in forward of prerouting chain.



    ----- Original Message ----- 
    From: Alin Nonosel 
    To: lartc@mailman.ds9a.nl 
    Sent: Tuesday, August 24, 2004 1:32 AM
    Subject: [LARTC] imq question


    Hi

    I've a stupid question. How can I shape upload using IMQ?
    Instead of putting a rule in iptables in PREROUTING should i use POSTROUTING?
    And another question is, can I make routing rule based on ip addresses assigned by iptables to an imq device?
    The idea is, let's say i have some rules in iptables like: -t mangle -A PREROUTING -s 192.168.0.0/16 -j IMQ --todev 0
    Can i route this class thru another ip, something like fwmark is doing? with iptables marking the packets and ip rule fwmark?

    Best regards,
    Alin

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