Multicast Wake on LAN with Fujitsu Lifebook E556

[Deimos]

@sebastian-roth said in Multicast Wake on LAN with Fujitsu Lifebook E556:

Just bumping this so we don’t loose track of it. @Deimos Let us know when you have new information on this.

Jap, I will. But now we have other FOG problems. “HTTP 500 Internal Server Error”. I will make new thread.

[Deimos]

A simple test environment did not make things easier. All 6 computers have deployed via WOL in multicast without difficulty.

Previously, when multicast with about 25 computers some have failed at the WOL, and I can´t say what it might have been. All computers have identical settings in the BIOS, all had the same image history etc.

I’ll keep working on it.

Maybe it´s still a 1.4.0 problem. I’m a little bit scared to update the FOG, because failure would have serious consequences and work, and there’s really no time for it.

[Sebastian Roth]

@deimos I guess we need to get a packet dump of the WOL packets to rule out FOG being the issue. Please install tcpdump and then run tcpdump -w /tmp/wol.pcap port 9 (as root - leave the command running). This will only capture WakeOnLAN packets. Then schedule a Multicast Task for your 25 clients and wait for most of them to boot up, then stop tcpdump (ctrl + c). Please upload the wol.pcap to your dropbox/fileshare and post a link here.

[Deimos]

Today is test day.

I have five devices where WOL used to work, and five devices that do not mess with WOL. I will group these together and then start a multicast task with the processes mentioned by @SebastianRoth in the background.

Also I will test a multicast WOL with our HP ProBooks 650G1.

[Deimos]

The command tcpdump -w /tmp/wol.pcap port 9 doesn´t work. Error message:
“NFLOG link-layer type filtering not implemented.”

With command tcpdump -w /tmp/wol.pcap it works.
But the file is crashed.
Content: "Ôò¡   ï "

I´ll try again and wait till the four WOL-working clients are deploying.

[Deimos]

So, now none of the clients are booting with WOL.

Restarted service FOGMulticastManager.

tcpdump doesn´t make any other log either.

[Sebastian Roth]

@Deimos What do you mean by file is crashed. The dump file is not ascii readable text but a binary format. You need to load that in wireshark for example. Or upload to your gdrive/dropbox and post a link so we can have a look.

[Deimos]

@sebastian-roth said in Multicast Wake on LAN with Fujitsu Lifebook E556:

@Deimos What do you mean by file is crashed. The dump file is not ascii readable text but a binary format. You need to load that in wireshark for example. Or upload to your gdrive/dropbox and post a link so we can have a look.

It´s only 1KB and the message after stopping the process is

Last login: Fri Feb 16 08:28:52 2018 from CLIENT.DOMAIN
[root@fog-sig-bund-de ~]# sudo tcpdump -w /tmp/wol.pcap
tcpdump: listening on nflog, link-type NFLOG (Linux netfilter log messages), cap ture size 262144 bytes
^C0 packets captured
0 packets received by filter
0 packets dropped by kernel
[root@fog-sig-bund-de ~]#

I am not sure if this is expected.

[Deimos]

I will upload the file on my homepage later.

[Deimos]

So I looked at the file with my wireshark at home (forbidden in office)
There´s no data.

I will set up a new fog from scratch and try to WOL the devices. I will report later.