update

[Francis Dupont]

> * open questions
> 
> 1) do we have a ipv4 subnet assigned at the ietf yet?

=> I can't see an answer from Jim about this.

> 2) how to renumber pcp's default ports after a dhcp port range change and
>    (shell scripts, please, no python!!!)

=> on the SD-AFTR:
 - change the AFTR config file (two versions, cp the second one to
  the active one), use a command channel (the terminal where 'aftr -g'
  was launched or 127.0.0.1:1015 or [::1]:1015 via telnet or nc
  or what you want, type reload<enter>, should get 'reload succeeded'
  and 'LOG: garbage collection done'. BTW the reload is interleaved
  with the NAT function so can take time even I never saw a significant
  delay, quit by 'session close')

 - change the TSV (in DHCP/server/tsv.conf) config file, restart the
  DHCP server: as explained in the man:
  Whenever  changes  are  made  to  the  dhcpd.conf  file,  dhcpd must be
  restarted.   To restart dhcpd,  send  a  SIGTERM  (signal  15)  to  the
  process  ID  contained  in  RUNDIR/dhcpd.pid, and then re-invoke dhcpd.

on the SD-B4:
 - either flush conntrack and iptables (rules (-F) and chains (-X),
  don't forget the '-t nat' as by default iptables is '-t filter').

 - update /etc/sdctld.conf (the parameters are in the last line
  so it should be easy to do it automatically)

 - launch the IPv4 setup with the new range

 - restart sdctld (same than DHCP server)

> 3) icmpv6 message?

=> NO!

> 4) who/how to test  failover

=> it seems it will be me with the help of Alistair. BTW has someone
tested the suspend/hibernate of the netbooks? Some hardwares are
a bit limited but usually at least one works.

> 5) configuration documentation for aftr for demo? - where to put on
> wiki? (I'm not writing this)

=> the first version of the config was saved on
rt28354/conf/testbeds/vm/*sd*. I'll put the last files on the hw.
For the sdb4 we have sdb4-ubuntu and sdb4-openwrt, for the second
I'd like to get the files and the doc)

> 6) configuration doc for sd-cpe - will write friday night - where to
> put on wiki?

=> under git in rt28354/conf/testbeds/sdb4-openwrt (you can rename
into sdb4-cerowrt).

> lan and wireless interfaces route successfully through tun0

=> fine

> complex web sites such as this eat all available ports and can hang forever

=> there are 512 ports so it is not our fault if NATs offer a bad
service. For me the right solution was developed 19 years ago
(cf the log of the second connection between two independent IPv6
implementations the 25 March 1993 :-).

> * Core files on sd-cpe2

=> thanks, I'll copy all of them

> /etc/crazy sets up an iptables rule for icmpv4, I think we need v6

=> no, it must be ICMPv4.

> /etc/crazymon a start at trying to do something with an icmp (20
> second delay inherent in log)

=> 20 s is not a problem for an event which is supposed to be very
unfrequent.

> /etc/dhclient-script # hopefully does almost the right thing on a
> renew, but pcp??

=> cat fixed part + echo with variable expansion > sdctld.conf,
launch the process (-d -f /etc/sdctld.conf).

> /etc/init.d/sdcpe start

=> it is not explained but it is the master script.

> * mods from default cerowrt
> 
> dnsmasq substituted for bind9 as a forwarder (/etc/resolv.conf.auto
> written by setup6)
> bind9 (and dnssec) disabled
> local time server disabled
> babel mesh router disabled

=> thanks

Francis Dupont <fdupont at isc.org>