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тАО03-04-2011 05:58 AM
тАО03-04-2011 05:58 AM
Adding a bogus route to simulate network outage
I added a bogus route for a destination IP, yet I can still ping the destination IP.
Used the command "route add host DEST-IP GW 1"
The gateway IP that I used is not pingable.
Any ideas?
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тАО03-04-2011 06:53 AM
тАО03-04-2011 06:53 AM
Re: Adding a bogus route to simulate network outage
Run:
ndd -get /dev/ip ip_ire_gw_probe
If it responds "1", Dead Gateway Detection is enabled. To disable it, run:
ndd -set /dev/ip ip_ire_gw_probe 0
Then remove and re-add your bogus route.
MK
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тАО03-04-2011 07:56 AM
тАО03-04-2011 07:56 AM
Re: Adding a bogus route to simulate network outage
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тАО03-04-2011 08:01 AM
тАО03-04-2011 08:01 AM
Re: Adding a bogus route to simulate network outage
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тАО03-04-2011 08:22 AM
тАО03-04-2011 08:22 AM
Re: Adding a bogus route to simulate network outage
With the route add command, it seems I am required to enter a gateway address that is on the same subnet as my HP-UX server.
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тАО03-04-2011 09:21 AM
тАО03-04-2011 09:21 AM
Re: Adding a bogus route to simulate network outage
If its a test system, how about actually having a network outage.
Pull the cable or have the network admin misconfigure the port.
Make sure you still have console access and you will really see what happens.
Breaking the software network configuration is not imo realistic. Its a stupid human trick that is not how networks get broke. They get broke by the methods mentioned in paragraph two of this port.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО03-04-2011 10:20 AM
тАО03-04-2011 10:20 AM
Re: Adding a bogus route to simulate network outage
While it may not be a real-world scenario, it is better than disrupting critical business services.
Thx
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тАО03-04-2011 10:47 AM
тАО03-04-2011 10:47 AM
Re: Adding a bogus route to simulate network outage
This HP system is hosted on an HP VM and the network team is not comfortable creating an ACL affecting the trunked network link that is shared among other VMs on this host.