I am running OpenBSD 6.7 and am having a strange issue with snmpd(8).
The issue is that it doesn't have all the arp entries but this was
working before. I don't know exactly when this started happening
but I just noticed today.
Here is the machine in question and what I get:
wharrels@styx1:/home/wharrels$ uname -a
OpenBSD styx1 6.7 GENERIC.MP#3 amd64
wharrels@styx1:/home/wharrels$ arp -a | wc -l
985
Box is acting as a firewall so that is normal. Actually normal to
have many more than that. But if I do a query from another machine
via snmpwalk I get a completely different number of machines in
the arp table:
[wharrels@newtron ~]$ snmpwalk -v2c -c public styx1
ip.ipNetToMediaTable.ipNetToMediaEntry.ipNetToMediaPhysAddress | wc -l
456
Not even close to the same number of machines. The above OID translates to
1.3.6.1.2.1.4.22.1.2 if you want to try this and see what you get.
Should I be using a different OID to get the arp table or is there
another way to do this? It might be that this was not working quite
right before but I don't remember it being off like this.
Any help would be appreciated, thanks.
Winfred
