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* packet tracing
@ 2015-05-07  6:16 sainath grandhi
  2015-05-07  6:26 ` Erik Hugne
  0 siblings, 1 reply; 4+ messages in thread
From: sainath grandhi @ 2015-05-07  6:16 UTC (permalink / raw)
  To: netdev

Hello,
    Is there any debug message framework in place for tracking a
network packet as it passes through different kernel stack layers
(layer 3, layer 2, bridge devices, drivers etc)?

^ permalink raw reply	[flat|nested] 4+ messages in thread

• * Re: packet tracing
    2015-05-07  6:16 packet tracing sainath grandhi
  @ 2015-05-07  6:26 ` Erik Hugne
    2015-05-07  6:52   ` sainath grandhi
    0 siblings, 1 reply; 4+ messages in thread
  From: Erik Hugne @ 2015-05-07  6:26 UTC (permalink / raw)
    To: sainath grandhi; +Cc: netdev
  
  On Wed, May 06, 2015 at 11:16:32PM -0700, sainath grandhi wrote:
  > Hello,
  >     Is there any debug message framework in place for tracking a
  > network packet as it passes through different kernel stack layers
  > (layer 3, layer 2, bridge devices, drivers etc)?
  
  Try iptables LOG target
  
  ^ permalink raw reply	[flat|nested] 4+ messages in thread

• • * Re: packet tracing
      2015-05-07  6:26 ` Erik Hugne
    @ 2015-05-07  6:52   ` sainath grandhi
      2015-05-07  7:57     ` Erik Hugne
      0 siblings, 1 reply; 4+ messages in thread
    From: sainath grandhi @ 2015-05-07  6:52 UTC (permalink / raw)
      To: Erik Hugne; +Cc: netdev
    
    Hi Erik,
       Are you referring to something like this?
    
    iptables -A LOGGING -j LOG
    
    On Wed, May 6, 2015 at 11:26 PM, Erik Hugne <erik.hugne@ericsson•com> wrote:
    > On Wed, May 06, 2015 at 11:16:32PM -0700, sainath grandhi wrote:
    >> Hello,
    >>     Is there any debug message framework in place for tracking a
    >> network packet as it passes through different kernel stack layers
    >> (layer 3, layer 2, bridge devices, drivers etc)?
    >
    > Try iptables LOG target
    
    ^ permalink raw reply	[flat|nested] 4+ messages in thread

  • • * Re: packet tracing
        2015-05-07  6:52   ` sainath grandhi
      @ 2015-05-07  7:57     ` Erik Hugne
        0 siblings, 0 replies; 4+ messages in thread
      From: Erik Hugne @ 2015-05-07  7:57 UTC (permalink / raw)
        To: sainath grandhi; +Cc: netdev
      
      On Wed, May 06, 2015 at 11:52:57PM -0700, sainath grandhi wrote:
      > Hi Erik,
      >    Are you referring to something like this?
      > 
      > iptables -A LOGGING -j LOG
      
      Ex. log all L2 packets (raw/prerouting)
      iptables -t raw -A PREROUTING -j LOG
      
      I refer to this a lot (not sure if it's 100% accurate anymore though)
      http://upload.wikimedia.org/wikipedia/commons/3/37/Netfilter-packet-flow.svg
      
      ^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2015-05-07  8:02 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-05-07  6:16 packet tracing sainath grandhi
2015-05-07  6:26 ` Erik Hugne
2015-05-07  6:52   ` sainath grandhi
2015-05-07  7:57     ` Erik Hugne

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