Looking for some help here,
I'm trying to access devices from my Centos 6.7 Server, specifically via SNMP.
When my IP Tables are active I can't access the SNMP of the device but I can ping it, when IP Tables are disabled SNMP works fine.
See IPtables below:
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:INPUT DROP [1:328]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [1:152]
-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 443 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 12001 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 12002 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 12003 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 12004 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 12005 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 12006 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 12009 -j ACCEPT
-A INPUT -p udp -m udp --dport 162 -j ACCEPT
-A INPUT -p udp -m udp --dport 161 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 5432 -j ACCEPT
-A INPUT -p icmp -m icmp --icmp-type any -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
COMMIT
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snmpwalk -v 2c -c public 10.0.0.51
Timeout: No Response from 10.0.0.51
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snmpwalk -v 2c -c public 10.0.0.51
SNMPv2-MIB::sysDescr.0 = STRING: Device Description
SNMPv2-MIB::sysObjectID.0 = OID: SNMPv2-SMI::enterprises.3184.1.14
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (84772) 0:14:07.72
SNMPv2-MIB::sysContact.0 = STRING:
SNMPv2-MIB::sysName.0 = STRING: Device Name
SNMPv2-MIB::sysLocation.0 = STRING:
SNMPv2-MIB::sysServices.0 = INTEGER: 7
Thanks,