[prev in list] [next in list] [prev in thread] [next in thread] 

List:       net-snmp-users
Subject:    Re: How to get ipaddress
From:       Dave Shield <D.T.Shield () csc ! liv ! ac ! uk>
Date:       2006-02-24 9:22:33
Message-ID: 1140772953.20587.15.camel () daves ! staff ! csc ! liv ! ac ! uk
[Download RAW message or body]

On Fri, 2006-02-24 at 09:50 +0530, Nithin wrote:
>     Can any one tell, what does it mean by atIfindex.

>From RFC 1213:

atIfIndex OBJECT-TYPE
    DESCRIPTION
            "The interface on which this entry's equivalence
            is effective.  The interface identified by a
            particular value of this index is the same
            interface as identified by the same value of
            ifIndex."


> Why it is showing '1' for all mac/ip addresses.

I suspect that the switch probably only has one (logical)
network interface for communicating with the box itself.

Note that network interfaces as reported in the ifTable
are *not* necessarily the same as physical switch ports.

If you want to monitor which systems are connected to which
ports of the switch, you probably need to investigate the
BRIDGE-MIB (RFC 1493/4188), and in particular, dot1dTpFdbTable

But note that this is only concerned with *MAC* addresses.
A switch would typically be working at level 2, and would
not normally bother recording the IP addresses of traffic
it sees (even assuming that this traffic was IP-based in
the first place!)

Dave


-------------------------------------------------------
This SF.Net email is sponsored by xPML, a groundbreaking scripting language
that extends applications into web and mobile media. Attend the live webcast
and join the prime developer group breaking into this new coding territory!
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642
_______________________________________________
Net-snmp-users mailing list
Net-snmp-users@lists.sourceforge.net
Please see the following page to unsubscribe or change other options:
https://lists.sourceforge.net/lists/listinfo/net-snmp-users
[prev in list] [next in list] [prev in thread] [next in thread]