I don't believe that this is correct.
Let's say that you had one set to 10.1.1.1/24, and the other to
172.16.1.1/24. If you are at 10.1.1.1 and try to ping 172.16.1.1, your
station will compare the destination address to your own IP/mask combination
and discover that the destination is not local. It will not arp for the
destination MAC address, but will forward the packet to the default gateway.
An arp would only be transmitted if your station determined that the
destination was local and there was no corresponding entry in the arp cache.
It's true these devices are in the same broadcast domain, meaning that
station 2 would see arp requests from station 1, but in this given scenario
no arp request would occur.
> In this scenario , it would also not matter what ip address you assigned
to
> the stations . ie: you could set one at 10.x.x.x /8 and the other at
> 192.x.x.x/28 and still get a ping response
>
> Kane
>
> ----- Original Message -----
> From: "Sheahan, Ryan" <[EMAIL PROTECTED]>
> To: "'Fowler, Joey '" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
> Sent: Thursday, February 01, 2001 5:23 AM
> Subject: RE: Ethernet switching
>
>
> > These are my thoughts,
> >
> > If the switch was right out of the box, the stations could ping each
other
> > no matter what subnet mask you were using. The reason being, they are
> > located in the same broadcast domain, vlan1. This is the default vlan
for
> > all switched ports at this time. The first station would arp for the
> other,
> > it would get a response because they are on the same layer 2 broadcast
> > domain and they could speak directly using the switch.
> >
> > Switches by default with no mls, are layer two devices. They have no
> > concept of IP. They make decision based on layer 2 MAC addresses and
the
> > ports they are connected to. If these stations were in different
vlans,
> the
> > situation would change. You then have created two broadcast domains
and
> in
> > order for the devices to talk, a router or mls entry would be needed.
> >
> > Someone please correct me if I am wrong.
> >
> >
> >
> >
> > -----Original Message-----
> > From: Fowler, Joey
> > To: [EMAIL PROTECTED]
> > Sent: 1/31/01 10:52 AM
> > Subject: RE: Ethernet switching
> >
> > Depends on the subnet mask you are using, for instance
> >
> > 142.102.3.1 with a subnet mask of 255.255.0.0
> > 142.102.2.1 also with a subnet of 255.255.0.0
> >
> > The 2.1 and 3.1 would be on the same subnet, however if you have a
> > different
> > subnet mask I don't think it would work.
> >
> > Joey
> >
> > -----Original Message-----
> > From: alexs [mailto:[EMAIL PROTECTED]]
> > Sent: Saturday, September 09, 2000 7:42 AM
> > To: [EMAIL PROTECTED]
> > Subject: Ethernet switching
> >
> >
> > Hello everyone,
> >
> > I have a question that probably will sound silly but here it is:
> > Suppose that you take a new 2924 out of the box and you plug in two
> > PC's.
> > You assign address, for example, 142.102.2.1 to the first one and
> > 142.102.3.1 to the second one.There is not any router in this small
> > network.142.102.2.1 tries to ping 142.102.3.1.The question is: will
> > 142.102.2.1 get a reply and why?
> > Thanks
> > alexs
> >
> >
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>
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