I recently reworked my network and made my G4 Cube an IPSEC tunneling
host. Here is what I have done.
[jupiter] <----> [uranus] <--- wireless network starts here --->
[wireless router] <----> [mars]
Jupiter is a core i7 computer running OpenBSD/amd64
Uranus is a Lanner atom based router running OpenBSD/i386
Wireless router is AVM Fritzbox 3270
Mars is G4 Cube running OpenBSD/macppc on 100 Mbit/s Lan port 2 on
Wireless router
Now what I'm seeing is the following when downloading a large file
(7GB): I only get 5 Mbit/s.
Here is the CPU stats on mars:
CPU states: 0.4% user, 0.0% nice, 11.4% system, 4.4% interrupt, 83.9%
idle
in a "systat vmstat 1" it shows that the gem0 card is at 1300 interrupts
and packets in out are both around 1300 as well. Is this the limit with
these cards? Here is what mars is doing:
it gets 5 Mbit/s worth of traffic, it then encapsulates it in a gif0 and
encapsulates that with IPSEC (running iked for key management). It then
sends a bit more than 5 Mbit/s to Jupiter.
The AVM Fritzbox has around 55% cpu shown on its internal monitors. I
doubt it's causing slowdowns.
Considering that without this tunneling host Jupiter and Uranus have
done 20 Mbit/s I don't think it's they who are causing it. Which
leaves me with Mars. Is there any way I can speed up this box? It
behaves as if it's on a 10 Mbit/s half-duplex link (5 Mbit + 5 Mbit, per
second) only that it's on 100 Mbit/s full-duplex.
Can anyone confirm that these boxes only do 10 Mbit/s, which is weird
considering the 80% idle cpu.
Regards,
-peter
