[Click] for help on Roofnet

[Roberto Riggio]

Il 09/01/2011 12:39, 欧阳鑫 ha scritto:
> Hi everyone,
>       We are running experiments with Roofnet on PCs. I have downloaded
> click-1.8.0, and configured, make, make install it successfully. Then
> I run: "./gen_config_roofnet.pl --dev wlan0 | click -" on TWO PCs. The
> problem is, we cannot ping each other on the 2 PCs.  We do not have
> the old Atheros wireless cards, but use the new Atheros wireless cards
> (802.11n supported) drived by ath9k. I am not sure if this is ok.
it should work. However as far as I remember the official mac80211
modules do not support the rate and the retries radiotap fields. I
assume that in this case you are always transmitting at the base rate.
> The srcr interface's HWaddr is
Yes
> On PC1, "./read_handler srcr/es.bcast_stats" shows
>
> 200 Read handler 'srcr/es.bcast_stats' OK
> DATA 360
> 5.32.234.144 00-25-86-20-EA-90 seq 1294477713 period 30000 tau 300000 sent
> 45 last_rx 10.843367
> 5.32.234.144 00-25-86-20-EA-90 [ 2 60 0 0 -1 -1 ]
> 5.32.234.144 00-25-86-20-EA-90 [ 2 1500 0 0 -1 -1 ]
> 5.32.234.144 00-25-86-20-EA-90 [ 4 1500 0 0 -1 -1 ]
> 5.32.234.144 00-25-86-20-EA-90 [ 11 1500 100 100 0 0 ]
> 5.32.234.144 00-25-86-20-EA-90 [ 22 1500 100 100 0 0 ]
this is strange because it looks like you are transmitting and receiving
probes at both 5.5 and 11 Mbps but not at the lower rates.
>
> On PC2, "./read_handler srcr/es.bcast_stats":
>
> 200 Read handler 'srcr/es.bcast_stats' OK
> DATA 352
> 5.167.1.211 00-25-86-A7-01-D3 seq 1294477686 period 30000 tau 300000 sent 36
> last_rx 3.115970
> 5.167.1.211 00-25-86-A7-01-D3 [ 2 60 0 100 0 0 ]
> 5.167.1.211 00-25-86-A7-01-D3 [ 2 1500 0 100 0 0 ]
> 5.167.1.211 00-25-86-A7-01-D3 [ 4 1500 0 100 0 0 ]
> 5.167.1.211 00-25-86-A7-01-D3 [ 11 1500 100 100 0 0 ]
> 5.167.1.211 00-25-86-A7-01-D3 [ 22 1500 85 100 0 0 ]
this means that you are receiving probes for every rate but you
are successfully transmitting only at the 5.5. and 11 rates
> The questions are:
> (1) Why as neighbors, PC1 and PC2 cannot ping each other?
because you have no routes and you have no routes because
the probes at the lowest rate (1 Mbps) are not transmitted
>   (2) srcr/lt.routes shows no data, Is this OK?
no
> (3) Each PC has 3 interfaces, srcr, rate and wlan0. Which one should
> be used to do experiments (like COPE)?
srcr
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