[LARTC] Hash tables

[LARTC] Hash tables

[Charles Williams]

hey all,

I was looking through the script and trying to work out more example entries
to jump start me for when I can test the script and noticed in the filters
the following after I had added the filters to check eth1 for dst address.

// for eth0 -> Internet filtering on source address
$TC filter add dev eth0 parent 1:0 prio 5 u32 \
  ht 1:6: match ip src $ALIAS2 flowid 1:2
$TC filter add dev eth0 parent 1:0 prio 5 handle\
  ::1 u32 ht 800:: match ip nofrag \
  offset mask 0x0F00 shift 6 \
  hashkey mask 0x00ff0000 at 8 link 1:

// for somewhere -> eth1 filtering on destination address
$TC filter add dev eth1 parent 2:0 prio 5 u32 \
  ht 1:6: match ip dst $ALIAS2 flowid 2:2
$TC filter add dev eth1 parent 2:0 prio 5 handle\
  ::1 u32 ht 800:: match ip nofrag \
  offset mask 0x0F00 shift 6 \
  hashkey mask 0x00ff0000 at 8 link 2:

The first block seems correct to me.  However the second doesn't.  Can
anyone verify this and explain why/how?

thanks,
chuck

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