On 08/12/06, David Ingoldsby <[EMAIL PROTECTED]> wrote:
> There are two machines acting as SNMP managers:
>
> 1: RedHat Enterprise Linux: net-snmp 5.1.2 installed.
> I run snmpget to 10.0.1.48:
> [EMAIL PROTECTED] snmpget -v 1 10.0.1.48 -c public system.sysDescr.0
> SNMPv2-MIB::sysDescr.0 = STRING: IBM OS/400 V5R3M0
>
> 2: CentOS 4.4: net-snmp 5.1.2 installed.
> I run snmpget to 10.0.1.48:
> snmpget -v 1 10.0.1.48 -c public system.sysDescr.0
> Timeout: No Response from 10.0.1.48.
> On rhe RHEL machine, to 10.0.1.48, there's an SNMP get-request, followed
> immediately by a get-response.
>
> On the CentOS machine, there's an SNMP get-request, followed immediately
> by a get-response, followed immediately by an ICMP to the port the
> get-response came from.
That definitely sounds like low-level network access control.
(i.e. way below the level that Net-SNMP works at)
> Wireshark on both machines sees the responses relevant to that machine,
> and neither machine is running a firewall.
Are you sure that the CentOS machine doesn't have 'iptables' installed?
What do:
service iptable status
chkconfig --list iptables
return on this box?
Dave
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