Symptom
When Illustra cameras are factory defaulted they have a gateway value of 0.0.0.0 in the network settings. Ubuntu servers use a mechanism called “reverse path filtering” set
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Affected platforms
Illustra Pro, Flex and Essentials cameras
Ubuntu 10.04, 12.04, 14.04
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Workaround
Edit the network security configuration file in /etc/sysctl.d/
Change the value from Strict mode (1) to Loose mode (2) for all interfaces0 – No source validation.
0 – No source validation.
1 – Strict mode as defined in RFC3704 Strict Reverse Path
Each incoming packet is tested against the FIB and if the interface
is not the best reverse path the packet check will fail.
By default failed packets are discarded.
2 – Loose mode as defined in RFC3704 Loose Reverse Path
Each incoming packet’s source address is also tested against the FIB
and if the source address is not reachable via any interface
the packet check will fail.
The exacqVision 7.2 service installer is being modified to set this value to 2 during install of exacqVision.