Re: Getting IP address of devices connected to a switch
Les Mikesell <[email protected]>
| Newsgroups | gmane.network.net-snmp.user |
|---|---|
| Message-ID | <[email protected]> |
Roy M. Silvernail wrote:
> On Wed, Jun 04, 2008 at 07:36:50PM +0530, amar wrote:
>> Hi,
>>
>> How can I get the IP address of the devices that are connected to a switch?
>> Is there any OID that can fetch them?
>
> Depends on what you mean by "connected". If you mean the devices
> plugged into the switch ports, no. If you're looking for the addresses
> of devices holding a TCP connection to the switch,
> RFC1213-MIB::tcpConnTable has that.
OpenNMS (and probably other tools) can figure this out so there must be
a way to do it. I think it gets the MAC table from the switch and
matches it up with the arp table and/or the mac/IP addresses from the
connected devices.
--
Les Mikesell
[email protected]
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