[ixp1200] tcpdump

[Abhijeet Joglekar]

The same tcpdump should work for the IXP ports too. If you run the L3
forwarding application provided by Intel , the ports appear as eth
devices. Eg if you enable all 4 interfaces on the bv card, they would
appear as eth1, eth2, eth3 and eth4. (eth0 would be the pci/eth interface)

You can then run the tcpdump which Austen has compiled on any of these
interfaces.

To send/recv. packets to/from the Linux on the core, you need to bind the
L3forwardACe to StackACE and StackACE to EgressACE.

Eg. in ixsys.config file,

***********
bind regular L3Fwdr/stack stackAce
bind regular stackAce/tx ifaceOutput
***********

This way, packets destined to the local linux stack, would be forwarded by
l3forward to StackAce, which would forward it to TCP/IP stack, which would
send it back to StackAce from where it gets forwarded to EgressACE.

-- Abhijeet

On Tue, 29 Oct 2002, Austen McDonald wrote:

>
> 	Oh, one more thing: of course, my version of tcpdump isnt for
> grabbing packets off the ports; its for getting packets from the ethernet
> interface attached to the SA. I dont know if this was what you were
> looking for or not...
>
> > Hi,
> > I am trying to get some of the traffic monitoring tools. Does anyone
> > have tcpdump or iptraf for IXP1200?
> > Thanks,
> > Chris
> >
> >
>