From: "Nicolás Brailovsky" <nicolasbrailo@...>
Date: 2009-10-02T00:32:31+09:00
Subject: Re: Problems with SNMP

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2009/10/1 Rocir Santiago <rocirleite@gmail.com>

> When I just add the ifPhysAddress, the application just exists, with out
> any message.
>

You'll have to find what's the exception by capturing it yourself then,
there's no way my psychic powers can reach that far.


>
> I know the switch supports what I want because at the web interface I
> can see a image that shows all the pluged machines and I can see the MAC
> address of each one.
>

Doesn't mater, the web interface may show it but that doesn't mean SNMP
supports this functionality. Reffer to the different RFCs for SNMP and chec=
k
if it's supported using another SNMP tool, like those from netsnmp.



Regards
--=20
Nicol=E1s Brailovsky - http://nicolasb.com.ar/



>
> What I just need is to get those mapings into ruby code. My app need
> that information but I can't just figure out a way to do that.
>
> Nicol=E1s Brailovsky wrote:
> > 2009/10/1 Rocir Santiago <rocirleite@gmail.com>
> >
> >> Hi, Nicol=E1s.
> >>
> >> Thanks for the reply. My switch works fine with SNMP. It's 3com Baseli=
ne
> >> Switch 2226 Plus.
> >
> >
> > Problem is though it may support SNMP protocol it sure won't support al=
l
> > the
> > options (OIDs) the RFC defines. Some switches do support listing known
> > devices, some don't.
> >
> >
> >> My doubt it's about the ruby code to find the MAC
> >> address of each computer "pluged" in my switch. I can figure out some
> >> examples at the doc page of this lib. But when I just try to get the
> >> ifPhysAddress, the application raises an error and I don't know why.
> >>
> >
> > My experience with SNMP si mostly in C++, not Ruby, but it may be
> > helpful to
> > know which exception is your application raising. It may be because the
> > OID
> > is not supported (no such instance exception) or because it's not
> > defined in
> > your code. To assert if the switch does support this OID try using
> > snmpget
> > from console, not from within a program.
> >
> > BTW, if I remember correctly ifPhysAddress will give you the iface's ma=
c
> > internal to the switch, not the mac of the device in that port (there
> > may be
> > many known macs per port too).
> >
> > Regards,
> > --
> > Nicol=E1s Brailovsky - http://nicolasb.com.ar/
>
> --
> Posted via http://www.ruby-forum.com/.
>
>

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