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f60f3cec34
Previously, the ethernet device index was used as rt_table index and packet marking id/integer. With eth0 that is sometimes used as link-local interface, the rt_table index `0` would fail as `0` is already defined as a catchall (unspecified). The fwmarking on packets on eth0 with 0x0 would also fail. This fixes the routing issues, by adding 100 to the ethernet device index so the value is a non-zero, for example then the relationship between rt_table index and ethernet would be like: 100 -> Table_eth0 -> eth0 -> fwmark 100 or 0x64 101 -> Table_eth1 -> eth1 -> fwmark 101 or 0x65 102 -> Table_eth2 -> eth2 -> fwmark 102 or 0x66 This would maintain the legacy design of routing based on packet mark and appropriate routing table rules per table/ids. This also fixes a minor NPE issue around listing of snapshots. This also backports fixes to smoketests from master. Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>