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Today's Topics:
1. Re: Getting arpnip working (Lussier, Nicolas - Saint Gaudens)
--- Begin Message ---
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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