Hi all,
- The subnet mask is correct
- I don't have secondary address on the router but i have two FastEthernet
interfaces. The router is used as gateways between two physical networks.
I will try the command "no ip proxy-arp" on the interface but i don't
understund why the router is identified as owner of mac address searched !
ThankYou very much Phillip for your help
I will let you know a bout tests.
Best Regards
NS
"Phillip Remaker" <rekamerpillihp-> a écrit dans le message
de news:%dIVd.2309$ ...
>
> "ns" <> wrote in message news:...
> > I have two cisco routers and one windows server. All is connected to the
> > catalyst 4006 (L3 Router) :
> >
> > ROUTER_A
> > SERVER_A
> > ROUTER_Z
> > SWITCH_4006
> >
> > When SERVER_A need to talk with ROUTER_A via SWITCH_4006. The
SWITCH_4006
> > receive ARP response from ROUTER_Z talking that the MAC address of
> > SERVER_A
> > is his MAC address !!! why !!???
>
> Typically, this happens when the subnet mask is set incorrect on the
router
> inteface, or there are mismatched secondary addresses. A router will
> respond with its MAC address in proxy for an IP address. If it receives
an
> ARP request for a device on another interface, it will answer that ARP in
> order to facilitate routing.
>
> You can turn it off:
>
> interface (mumble)
> no ip proxy-arp
>
> But, if the reply is happening, you probably have some kind of
address/mask
> mixup, or an interface plugged into the wrong LAN or VLAN.
>
>
> Need more details, like configuration....
>
>
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