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Today's Topics:
1. Re: Getting arpnip working (Michael Butash)
--- Begin Message ---
This is not an uncommon problem for security devices as said before.
Apparently the folks that make them have never made network routers with
snmp support. Sad those like Cisco and PAN (and Sophos it seems) still in
2019 still can't seem to figure it out.
-mb
On Mon, Dec 9, 2019 at 3:18 AM Lussier, Nicolas - Saint Gaudens <
[email protected]> wrote:
> Hello all !
> First thanks for all the answers !
> Yes snmpwalk was working, but the issue is well that SNMP in sophos
> firewall (UTM SG 310 ver 9.7) didn't show up as a L3 device so netdisco
> din't arpnip.
> The solutions of John are working like a charm, despite there are more a
> bandage on a wooden leg that long time solution, you would be Sophos to
> corrige there snmp implementation, or at least give the user the choice ....
> Anyway thanks all !
>
>
> ---------------------------------------
> Nicolas LUSSIER
> Responsable Systèmes et Réseaux
> Fibre excellence
> +(33)5 61 94 75 92
> +(33)6 70 94 75 94
>
> ________________________________________
> De : John St.Martin (Home) <[email protected]>
> Envoyé : samedi 7 décembre 2019 20:42
> À : Lussier, Nicolas - Saint Gaudens
> Cc : [email protected]
> Objet : Re: [Netdisco] Getting arpnip working
>
> Hello Nicolas,
>
> I have had this issue and opened a case with Sophos in the past but they
> wouldn't do anything. The URM devices don't show as a layer 3 device in
> Netdisco and appeared to me Netdisco wouldn't try to pull the ARP tables. I
> worked around this a couple of ways:
>
> 1) on UTM, modified /var/sec/chroot-snmp/etc/snmpd.conf by adding
> "sysServices 4" and then kill -HUP the snmpd process - any snmp changes or
> a reboot seems to set it back to default and then after next netdisco
> discovery it stops working
>
> 2) setup a cron entry to every 5 minutes make sure these devices show
> layer3 support in netdisco - be careful if you have other Linux Net-SNMP
> devices - may want to change the sql statement to meet the needs of your
> environment:
> # workaround for Sophos UTM devices so they are seen as L3 devices
> */5 * * * * $HOME/bin/netdisco-do psql -e "update device set
> layers='00000100' where os='Linux' and vendor='Net-SNMP' and model='linux'"
> > /dev/null 2>&1
>
> I hope this helps and please let me know if anyone has any better
> suggestions than what I have found.
>
> John
>
> On Fri, Dec 6, 2019 at 6:55 AM Lussier, Nicolas - Saint Gaudens <
> [email protected]<mailto:
> [email protected]>> wrote:
> Hi evryone !
> I've got an issue on my network evrything is working execpt arpnip i saw
> the mac but not the ip and so not the netbiosname, etc ...
> This happend after i put VLAN in plave with my sophos UTM
> firewall/routeur, with the same configuration without VLAN i had the
> informations...
> start looking on sophos issue but i'm quite lost as i can snmpwalk it but
> not arpnip.
> Doesn't anyone have a clue ?
>
> Thx !
>
>
> ---------------------------------------
> Nicolas LUSSIER
> Responsable Systèmes et Réseaux
> Fibre excellence
> +(33)5 61 94 75 92
> +(33)6 70 94 75 94
>
>
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