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i have four suse linux servers siting on different lan. they are connected by a router and it is configured to allow these machines to ping one another.
default routings have been added to all these machines. the problem is: 1) machine A can ping to machine B and D 2) machine B,C and D can ping to machine A why can't machine A ping C?
I troubleshoot by setting up machine E on the same lan as machine A, and set machine A ip address on machine E (disabled machine NIC card during this test). i was able to ping machine B,C and D on machine E.
they are not sitting behind any firewall. i have flush all ip tables for these machines. i have turned off all OS firewall.
nuttynibbles
Posted 2013-02-01T16:29:12.973
Reputation: 149
What are the subnets of the machines ? – Ofiris – 2013-02-01T16:33:39.913
machine A and E are in 10.6.10; machine B is 10.6.20, C in 10.6.30 and D in 10.6.40 – nuttynibbles – 2013-02-02T00:30:45.227