Using net-snmp: Timeout, no response from host

Treikayan · 03-18-2009, 02:50 PM

I have a remote host where I installed the net-snmp package. The remote host is using CentOS 5.1 x64. I configured the snmpd.conf file as seen below. The remote host is also firewalled and I also attempted to allow snmp through iptables. The remote host is going to be monitored by Nagios (CentOS 5.1 i386). The problem is I keep getting "Timeout: No response from host" when I try snmpwalk (from the Nagios server and on the localhost itself). Could someone assist me trying to get this work. Is this a problem with x64 version of CentOS?

remote host snmpd.conf

1st section:

Code:

#       sec.name        source          community
com2sec localhost       127.0.0.1       public
com2sec nagiossrv       <IP Address>    public

second section:

Code:

#       groupName       securityModel   securityName
group   Local           v1              localhost
group   Nagios          v1              nagiossrv
group   Local           v2c             localhost
group   Nagios          v2c             nagiossrv

third section:

Code:

# Make at least  snmpwalk -v 1 localhost -c public system fast again.
#       name            incl/excl       subtree                     mask(optional)
view    all             included        .1
view    all             included        .iso.org.dod.internet.mgmt  F8

fourth section:

Code:

#       group           context sec.model sec.level  prefix read  write  notif
access  Local            ""     any       noauth     0      all   none   none
access  Nagios           ""     any       noauth     0      all   none   none

Here is my iptables entry:

Code:

ACCEPT     udp  --  <IP Subnet>       anywhere            state NEW udp dpt:snmp

0.o · 03-18-2009, 03:38 PM

Quote:

Originally Posted by Treikayan

I have a remote host where I installed the net-snmp package. The remote host is using CentOS 5.1 x64. I configured the snmpd.conf file as seen below. The remote host is also firewalled and I also attempted to allow snmp through iptables. The remote host is going to be monitored by Nagios (CentOS 5.1 i386). The problem is I keep getting "Timeout: No response from host" when I try snmpwalk (from the Nagios server and on the localhost itself). Could someone assist me trying to get this work. Is this a problem with x64 version of CentOS?

remote host snmpd.conf

1st section:

Code:

#       sec.name        source          community
com2sec localhost       127.0.0.1       public
com2sec nagiossrv       <IP Address>    public

second section:

Code:

#       groupName       securityModel   securityName
group   Local           v1              localhost
group   Nagios          v1              nagiossrv
group   Local           v2c             localhost
group   Nagios          v2c             nagiossrv

third section:

Code:

# Make at least  snmpwalk -v 1 localhost -c public system fast again.
#       name            incl/excl       subtree                     mask(optional)
view    all             included        .1
view    all             included        .iso.org.dod.internet.mgmt  F8

fourth section:

Code:

#       group           context sec.model sec.level  prefix read  write  notif
access  Local            ""     any       noauth     0      all   none   none
access  Nagios           ""     any       noauth     0      all   none   none

Here is my iptables entry:

Code:

ACCEPT     udp  --  <IP Subnet>       anywhere            state NEW udp dpt:snmp

Try and remove the state portion of your firewall rule. Also check the logs on the remote box for any hints.