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netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface UG 0 0 0 ens33 U 0 0 0 ens33 U 0 0 0 ens37 U 0 0 0 ens33 UH 0 0 0 ens33

I like to know what mean in Gateway column.
this is a router with ens33- and ens37- and ipforward is set.
ping (other server) not work.


It looks like there are multiple errors in the last entry: UH 0 0 0 ens33 Should be: UH 0 0 0 ens37 'genmask' column needs to be set for a /24, not /32, subnet (assuming is a /24 subnet) and the interface ("Iface" should be ens37, not ens33 (right now, both routes are pointing to the same interface).

What version of RHEL is this, and how is routing configured? (via NetworkManager, or via /etc/sysconfig/network-scripts/route-* files? or other configuration?)

marius, the in the gateway column indicates that packets that match the destination network can be sent directly via the listed interface, without forwarding the packet through another gateway.