[Nagiosplug-devel] Re[2]: [Nagios-devel] question about check_ping

[martin mcflysr]

Hello Subhendu,

Wednesday, April 23, 2003, 5:44:44 AM, you wrote:

SG> Actually a better posted on nagiosplug-devel - its a plugin after all.

SG> Would this feature be useful?
Yes, of course.

Example:


+--------+                         +------+
|unix box|iface1 10.0.0.1          |ROUTER|1.1.1.1     1.1.1.2
|        |---------------  NETWORK |      |======= ...   ISP1
|        |                 CLOUD   |      |
|        |iface2 10.0.0.2          |      |2.2.2.1     2.2.2.2
|        |---------------          |      |======= ...   ISP2
+--------+                         +------+


Unix box have a two interfaces: 10.0.0.1, 10.0.0.2.
Router  have  a  two  interfaces too: 1.1.1.1 and 2.2.2.1, connected
to different ISP.

Router have a such route policy, that packet from 10.0.0.1 sending out
via router interface 1.1.1.1, and packet from 10.0.0.2 sending out via
router interface 2.2.2.1.


For  exmaple,  we  need  a  check  from  unix  box  interface  of ISP2
(2.2.2.2).  we  can take command

# ping 2.2.2.2

then packets will be route via ISP1, .... external cloud ..., and ISP2.


Also, we can take command

# ping -S 10.0.0.2 2.2.2.2

In this case, packets will be routed via router interface 2.2.2.1.


Now, in nagios, if we are want a check (by check_ping) interfaces some
ISPs,  that  connected  to  our  one  router,  we  are  can check this
interfaces only via default interface.


ufff.


[sorry for poor english.]


thank you.

-- 
Best regards
from future, HillDale
martin                            mailto:martin at mcflysr.kurgan.ru