From: Kenneth Wygand (KWygand@customonline.com)
Date: Fri Jul 02 2004 - 11:16:53 GMT-3
Guilherme,
Check your arp cache to see what MAC address your IP address is resolving to. Can you ping this network address from the local router that is directly attached to this network as well?
Ken
________________________________
From: nobody@groupstudy.com on behalf of Ricardo Ferreira
Sent: Fri 7/2/2004 10:07 AM
To: Guilherme Correia; ccielab@groupstudy.com
Subject: Re: Ping the subnet address
So your question is why there's a reply to such request....
My understanding is because of the proxy arp hehaviour of the router that
will try to respond to an arp request on behalf of that 172.24.18.4 host....
So my suggestion to help u investigate this issue try to turn proxy arp off
at the routers and see what happens with the protocol analyzer and pls let
us know what happened....
But anyway that is my guess sure somebody at the group can help calrify this
issue much better than me....
----- Original Message -----
From: "Guilherme Correia" <razzolini80@hotmail.com>
To: <ricardo.ferreira@quadcomm.com.br>; <ccielab@groupstudy.com>
Sent: Friday, July 02, 2004 10:57 AM
Subject: Re: Ping the subnet address
> Hi
>
> This issue came to my attention when I used a network monitor software to
> discover the network and the subnet Ip's came up as answering the pings. I
> dont have a connectivity issue at this point and pinging the
> network/broadcast is not my intention, but the fact is that this is
> happening and I dont know why.
>
> TIA
>
>
> From: "Ricardo Ferreira" <ricardo.ferreira@quadcomm.com.br>
> To: "Guilherme Correia" <razzolini80@hotmail.com>,<ccielab@groupstudy.com>
> Subject: Re: Ping the subnet address
> Date: Fri, 2 Jul 2004 10:45:41 -0300
>
> Hi,
>
> 172.24.18.4/30 is the subnet address and not an address host( 172.24.18.5
> and 172.24.18.6 and 172.24.18.7 the broadcast address of such subnet )....
> Can u pls clarify exaclty what u are trying to get....
> You should use ping to reach the hosts and even the broadcast address but
> the network address I do not see a reason for doing that....
> ----- Original Message -----
> From: "Guilherme Correia" <razzolini80@hotmail.com>
> To: <ccielab@groupstudy.com>
> Sent: Friday, July 02, 2004 10:35 AM
> Subject: Ping the subnet address
>
>
> > Hi
> >
> > I am experiencing this weird issue that when I ping the subnet address,
> one
> > of the routers respond.
> > For example, when I ping 172.24.18.4 (subnet 172.24.18.4/30) one of the
> > routers with an interface on the subnet responds:
> >
> > 7204-1#ping 172.24.18.4
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 206.24.18.4, timeout is 2 seconds:
> >
> > Reply to request 0 from 172.24.18.5, 1 ms
> > Reply to request 1 from 172.24.18.5, 1 ms
> > Reply to request 2 from 172.24.18.5, 1 ms
> > Reply to request 3 from 172.24.18.5, 1 ms
> > Reply to request 4 from 172.24.18.5, 1 ms
> >
> > How can I stop this?
> >
> > TIA
> >
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