Re: OT - Layer 2 Switch

From: Jay McMickle <jay.mcmickle_at_yahoo.com>
Date: Mon, 15 Jul 2013 16:56:43 -0500

Would a debug IP packet work here, even with the wrong layer 3 address (since it's unknown) on the VLANx (newly created) local to this switch?

Trying to think outside of the box here. Please join! (CCIE craziness, I know)

Regards,
Jay McMickle- 2x CCIE #35355 (R/S,Sec)
Sent from my iPhone 5

On Jul 15, 2013, at 2:53 PM, Mohammad Mousa <mohd-mousa_at_hotmail.com> wrote:

> Jay,
>
> I think he doesn't know the subnet of this VLAN. So he can't put an IP for the VLAN interface from the same subnet, unless he want's to guess :-)
>
> I thought the same as you did =>
>
>
> Sent from my iPhone
>
> On Jul 15, 2013, at 3:47 PM, "Jay McMickle" <jay.mcmickle_at_yahoo.com> wrote:
>
>> Create a VLAN interface on the same VLAN that all the hosts are on, with an IP address on the same subnet.
>>
>> You can then ping the broadcast network (assuming proxy-arp isn't disabled on the VLAN interface) and then sh ip arp.
>>
>> Regards,
>> Jay McMickle- 2x CCIE #35355 (R/S,Sec)
>> Sent from my iPhone 5
>>
>> On Jul 15, 2013, at 2:25 PM, Eduardo VC!zquez <evazquez_at_gmail.com> wrote:
>>
>>> put a host on the same subnet and use nmap to ping all of them. show the
>>> arp table on that host.
>>>
>>>
>>> On Mon, Jul 15, 2013 at 1:50 PM, gaston brait <gbrait_at_hotmail.com> wrote:
>>>
>>>> I have been searching for a while and haven't found any answer.
>>>> I have several hosts connected to the switch and they all belong to the
>>>> same
>>>> vlan.I don't know the ip address of these hosts, but have the mac
>>>> addressess.
>>>> The default gateway for the switch is a FW which I don4t have access to
>>>> Is there anyway to get the ip address of these hosts?
>>>> show ip arp won't help
>>>> Regards,
>>>> Gaston
>>>>
>>>>
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Received on Mon Jul 15 2013 - 16:56:43 ART

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