Re: Equivalent of IP-MIB::ipNetToMediaTable for IPv6?

On Wed, Mar 21, 2018 at 8:51 PM, Karol Babioch <[email protected]> wrote:

> Hi,
>
> Am 22.03.2018 um 01:31 schrieb Karol Babioch:
> > However, I couldn't find anything equivalent for IPv6 (NDISC).
>
> Ok, for some reason I expected this to be within the IP-MIB tree, since
> it contains some other IPv6 relevant OIDs also.
>
> There is a IPV6-MIB with IPV6-MIB::ipv6NetToMediaTable, which looks
> quite promising. Unfortunately the whole tree is empty right now.
>
> Apparently the whole MIB was obsoleted back in 2006 in favor of the
> IP-MIB [1], but I can't find this particular table in the IP-MIB. At
> least according to the description [2] it should be
> IP-MIB::ipNetToPhysicalTable:
>
> > While many protocols may be used to populate this table, ARP
> > and Neighbor Discovery are the most likely
> > options.
>
> Unfortunately the IP-MIB does not contain this information for me :-/.
>

net-snmp does have an implementation of this table - README.agent-mibs says:

 table/object group           OS       Rel   Styl File
==============================================================================
...
IP-MIB
...
 ipNetToPhysicalTable         (implemented as inetNetToMediaTable)
 inetNetToMediaTable          L         5.2     M ip-mib/=/*

The "L" says that there's a Linux implementation of ipNetToPhysicalTable.
And in fact, I can query this table on a Fedora machine running 5.7.2.

What OS are you using? How did you build your net-snmp?

  Bill

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