From: Joseph Saad (joseph.samir.saad@gmail.com)
Date: Fri Jan 04 2008 - 05:19:55 ARST
L2 information (MAC address) will change on a per-hop basis.
L3 information (source/dest IP) can change only with NAT:
ip nat inside dest
ip nat inside source
ip nat outside source
NAT can change source, destination or both.
On Jan 4, 2008 10:37 AM, shahid Ansari <shahid1357@gmail.com> wrote:
> Hi,
>
>
> The destination and MAC IP address will be left unchanged since
> communication is to the
> end device.This is true for any TCP/IP communication:The destination MAC
> and
> IP do not change, although the source IP and MAC address may.
>
> The frame's destination MAC address will be the router's interface to
> which
> the host's network is connected to also called Default-Gateway if we are
> talking layer-2 here i.e. MAC address and not the IP address.
>
>
>
> Please correct me if I am wrong ...
>
>
>
> Thanks
>
> Shahid
>
> On Jan 4, 2008 12:01 PM, Monica Belluci <mpls1979@gmail.com> wrote:
>
> > Dear All,
> >
> >
> >
> > I have suspicion regarding source to destination address that is End to
> > End
> > address...
> >
> > Normally I listen in from one of the techie chap source and destination
> > address never change. this is in which situation ?
> >
> > If we are on internet obviously it change due to NAT and packet takes
> > outbound interface ip address as source.
> >
> >
> >
> > What abt if We are connected to core Switch 6500 ? In collapsed core
> Model
> > ?
> >
> >
> > Please kindly correct me if I am off beam .
> >
> > Nalini Roy
> >
> > _______________________________________________________________________
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>
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