some built stuff, some questions

Francis Dupont fdupont at isc.org
Sun Mar 18 09:29:20 UTC 2012


> > For a SD-B4 you need too from standard packages ip (iproute2) and

=> it seems you already included it for the AFTR

> > the script changes from messages I exchanged with Alain (and I still
> > have to send to you).
> 
> any time...

=> sent

> that package has the dhcp4 version that has support for both
> ipv6 and ipv4.

=> I confused the 4 in IPv4 with the version 4 of DHCP.

> > => you can't run the two functions on the same kernel at the same time.
> 
> But you can run it on two of the same cheap boxes at the same time.
> Sharing the lab with io - which has howling fans - is not ideal....

=> why do you believe I use an iMac (:-)?

> > => including DHCP stuff?
> 
> including dhclient. not isc-dhcp server.

=> a real AFTR needs a DHCP server and a DNS server. Note not
mandatory on the same box.

> What of libpcp's binaries is actually required?

=> it is not the answer to the question but it can help: use
the shared entry of the Makefile. If it is possible it is very
fine to have the python version (python 2 or 3, both are supported).

> huchra is the main bufferbloat/cerowrt build box - an 8 core platform
> that was donated to the bufferbloat effort by isc last year. It's
> NICE.

=> ah! A real box!

> > => ge00? oops, it is the name of the interface.
> 
> http://www.bufferbloat.net/projects/cerowrt/wiki/Device_naming_scheme

=> you wrote 'the public address' (:-)

> > => BTW on an AFTR without a shared address
> > it is even better to disable iptables, i.e., put a NOTRACK in the raw
> > table chains.
> 
> noted.

=> the reason is the conntrack hash table can run out of memory,
conntrack has a real cost for the performance too.
Note for an AFTR perhaps the simplest will be to remove the iptables
from the kernel (or if you want to keep the shared public address hack,
to push them to a package).

> A start. I'm relieved it fit, and nothing segvioed and the
> dependencies on external libs was minimal
> (only libxml and libdb were required in addition to the normal libs on the
> box)

=> I know for libdb but where the libxml is from (in the case you have
the answer)

Thanks

Francis Dupont <fdupont at isc.org>

PS: I go to walk some hours this afternoon (we are in UTC+2 until
24-25 night).


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