Comments (4)
You can give branch https://github.com/measurement-factory/dnstop/tree/cidr-aggregation a try. See new -C and -D options.
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Thanks!
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The in-line help on the app doesn't yet show the new commands ("./dnstop -h")
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I'm not quite sure how the view looks in the output, or if I'm interpreting things incorrectly. I ran "./dnstop en5 -C 24" and this is the output on the "source" view:
[snip]
Sources Count % cum%
192.168.1.39 15 93.8 93.8
192.168.1.50 1 6.2 100.0
I was expecting this to look something like:
192.168.1.0/24 16 100 100
Switching to "D"estination view has roughly the same output, even though the two destination addresses are in the same /24 but different /32's.
from dnstop.
Sounds like you might not be running the modified version? It definitely in the -h output. The Sources display won't show /nn but it should masked addresses, like this
Queries: 47 new, 3888 total Wed Oct 19 12:12:47 2022
Sources Count % cum%
-------------------------- --------- ------ ------
173.230.152.0 152 3.9 3.9
186.203.163.0 94 2.4 6.3
2600:3c01::f03c:91ff:0:0 68 1.7 8.1
212.142.48.0 51 1.3 9.4
179.55.90.0 38 1.0 10.4
198.142.152.0 37 1.0 11.3
45.182.72.0 35 0.9 12.2
12.121.91.0 22 0.6 12.8
2804:14d:810:672:189:7:: 21 0.5 13.3
77.20.151.0 17 0.4 13.8
2001:b000:180:8002:0:2:: 16 0.4 14.2
./dnstop: invalid option -- 'h'
usage: dnstop [opts] netdevice|savefile
-4 Count IPv4 packets
-6 Count IPv6 packets
-Q Count queries
-R Count responses
-a Anonymize IP Addrs
-b expr BPF program code
-B num Use num hash table buckets (default 100057)
-C len Aggregate IPv4 addresses by prefix length
-D len Aggregate IPv6 addresses by prefix length
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My apologies - yes, I fumbled the branch checkout suffix. Works as intended after re-compile - this is very helpful, thanks!
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