Monitoring Redundant path routers

[Mark Grafing]

Not if you setup the query to use "Check_snmp", then it will return a
warning or critical only for that check.
Thanks,
~MARK~
-----Original Message-----
From: Samuel Petreski [mailto:petreski at ksu.edu] 
Sent: Monday, April 26, 2004 1:22 PM
To: peter.gutmann at db.com
Cc: nagios-users at lists.sourceforge.net;
nagios-users-admin at lists.sourceforge.net
Subject: RE: [Nagios-users] Monitoring Redundant path routers


Peter,
 
Thank you very much for replying to my post. I thought of using SNMP
traps in order to be able to accomplish this, but what if the interface
of the Router goes down to which I send the SNMP traps? Nagios than is
going to think that the whole Router is down, which is not correct. 
 
If I send traps to Interface 192.168.0.10 on Router 3, and that
interface is down, the router is not necessarily down, only the that
interface.
 
--Samuel
 
-----Original Message-----
From: Peter Gutmann [mailto:peter.gutmann at db.com]
Sent: Monday, April 26, 2004 1:12 PM
To: Spencer Horn <shorn
Cc: nagios-users at lists.sourceforge.net;
nagios-users-admin at lists.sourceforge.net; petreski at ksu.edu
Subject: Re: [Nagios-users] Monitoring Redundant path routers
 
Why can't you use SNMP for this? The line up and the line down events
should generate SNMP traps. At the very least, could you use SNMP mib to
poll the status of the device....

----
Peter Gutmann
Peter.Gutmann at db.com
-----Original Message-----
From: nagios-users-admin at lists.sourceforge.net
[mailto:nagios-users-admin at lists.sourceforge.net]On Behalf Of Samuel
Petreski
Sent: Monday, April 26, 2004 12:33 PM
To: nagios-users at lists.sourceforge.net
Subject: [Nagios-users] Monitoring Redundant path routers
 
Hi,
 
I was looking into using Nagios for Enterprise wide monitoring and am
very impressed with all the capabilities, but ran into following
question:
 
                                      192.168.0.1          192.168.0.2
192.168.1.21
                        --------------------
--------------------192.168.1.1           --------------------
                        | Router 1     |----------------------------|
Router 2     |----------------------------|  Nagios       |
                        --------------------
--------------------                            --------------------
                  192.168.0.9 \
/  192.168.0.5
                                     \
/
                                      \
/
                                       \
/
                                        \
/
                                         \
/
                                          \
/
                                           \                          /
                                            \                       /
                                             \                    /
                                              \                 /
                            192.168.0.10\               / 192.168.0.6
                                              --------------------
                                              | Router 3     |
                                              --------------------
                                                      |  192.168.2.1
                                                      |
                                                      |  192.168.2.2
                                                -------------
                                                | Switch1|
                                                -------------
 
Can Nagios monitor the individual interfaces between the routers in
order to inform me when a link/interface goes down? I'm mainly
interested if monitoring Router 3, to have Router 1 and Router 2 as
dependencies, but also to know if the link between Router 1 and Router 2
goes down, because Nagios will be able to reach Router 3 through the
link between Router 2 and Router 3.
 
Any help would be greatly appreciated and if further information is
required, please feel free to let me know.
 
--Samuel
 
P.S. If this is a cross post, please let me know where I can find the
original post.
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