At 08:05 PM 3/18/02, John Green wrote:
>i guess you are right that there is some sort of
>filtering being done.
>because the arp command gives the same physical
>address of the hosts in my subnet.

Where are you running this ARP command? On a router, on a workstation? What 
does your network look like?


>Internet Address      Physical Address      Type
>211.16.12.1          00-05-5f-ee-e0-54     dynamic
>211.16.13.14         00-05-5f-ee-e0-54     dynamic

00-05-5F is Cisco's vendor code. Perhaps it's your default gateway? What 
are the 211.16 addresses? Are they your local machines?

I think we need more info to answer the question.... But perhaps knowing 
that the MAC address is a Cisco device will help. It could be the default 
gateway or the UBR at the service provider's network. But with no more info 
about your topology, I'm just guessing.

Priscilla


>for all other hosts as well the physical address is
>same as above. I guess the physical address is of the
>access server that out host is connecting to (or
>rather for the same subnet all hosts connect to this
>same access server, could be a dhcp server as well).
>
>i guess it is a switched environment. but still the
>physical address for different hosts should show up as
>different.
>anyone knows what is going on here ????
>
>
>
>--- sam sneed  wrote:
> > I just changed services from DSL to cable modem. I
> > have heard from people,
> > including verizon, that cable is not as secure as
> > DSL becuase it is over a
> > shared medium. I connected to my cable modem and
> > fired up my packet sniffer.
> > I did not see anyone elses traffic on the line so i
> > am assuming the bandwith
> > is shared( a known fact about cable access) but is
> > somehow filtered at the
> > cable modem(bridge). Does anyone know if this
> > assumption is true and the
> > inside details of the how data is transmitted over
> > the cable network? A link
> > to a whitepaer would be great.
> >
> > thanks
>[EMAIL PROTECTED]
>
>
>__________________________________________________
>Do You Yahoo!?
>Yahoo! Sports - live college hoops coverage
>http://sports.yahoo.com/
________________________

Priscilla Oppenheimer
http://www.priscilla.com




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