iftop-users April 2015

iftop-users@domain

3 participants
3 discussions

[Iftop-users] Add traffic accounting in PPS; drop short packets
by fred＠fperrin.net 23 Apr '15

23 Apr '15

Hi list, I'm sending the following patches. The first is a one-liner gcc was complaining about; the second add a new feature to do traffic accounting in packet per second rather than bit/s; the third is a fix to handle_ip_packet() which was reading past the end of certain malformed packets. [PATCH 1/4] Silence a warning [PATCH 2/4] Do traffic accounting in pps [PATCH 3/4] Drop packets shorter than sizeof (struct iphdr)

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[Iftop-users] unsubscribe
by Ali Jawad 23 Apr '15

23 Apr '15

unsubscribe On Thu, Apr 23, 2015 at 12:12 PM, <fred(a)fperrin.net> wrote: > Hi list, > > On my machine, if I generate the following IPv6 flood: > > ip -6 neigh add fe80::1234 dev eth0 lladdr 00:11:22:33:44:55 > nc -6 -u fe80::1234%eth0 1234 < /dev/zero > > The traffic reported by iftop is much less than the reality, as iftop > can't read packets off pcap fast enough. This patch only demonstrate > the problem, I don't intend for it to be applied. I haven't started to > dig into the cause yet. > > > _______________________________________________ > iftop-users mailing list > iftop-users(a)lists.beasts.org > http://lists.beasts.org/mailman/listinfo/iftop-users >

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[Iftop-users] iftop performance issue
by fred＠fperrin.net 23 Apr '15

23 Apr '15

Hi list, On my machine, if I generate the following IPv6 flood: ip -6 neigh add fe80::1234 dev eth0 lladdr 00:11:22:33:44:55 nc -6 -u fe80::1234%eth0 1234 < /dev/zero The traffic reported by iftop is much less than the reality, as iftop can't read packets off pcap fast enough. This patch only demonstrate the problem, I don't intend for it to be applied. I haven't started to dig into the cause yet.

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iftop-users April 2015