That one should be required reading for anyone working with Linux on z. It tells you how to operate all your devices! I think the title with the words "device drivers" in it probably scares everyone away.
I'll add a reference to it in my SHARE presentation :) Might be a good whole session though to consider though if the right speaker can be found! Marcy Cortes "This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation." -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Bauer, Bobby (NIH/CIT) [E] Sent: Wednesday, October 17, 2007 5:48 AM To: [email protected] Subject: Re: [LINUX-390] Unkown multicast packets with unknown mac address I did a quick browse of that manual. What an eye opener. Wish they had bothered to mention these things at some of the many Linux Share sessions I attended in San Diego recently. Bobby Bauer Center for Information Technology National Institutes of Health Bethesda, MD 20892-5628 301-594-7474 -----Original Message----- From: Mark Perry [mailto:[EMAIL PROTECTED] Sent: Wednesday, October 17, 2007 8:25 AM To: [email protected] Subject: Re: Unkown multicast packets with unknown mac address Bauer, Bobby (NIH/CIT) [E] wrote: > I got it working. Not sure if I understand the results yet. > Thanks for the pointer. > Bobby, this is easy on SLES 10, but you are correct that is is not on RHEL 5 :-( However you can use the qeth fake_ll=1 option to fake out the missing LLC headers. For example edit /etc/sysconfig/network-scripts/ifcfg-eth0 and add a line: OPTIONS='fake_ll=1' I restarted my system and tcpdump now works fine. An alternative/check is to look at: /sys/bus/ccwgroup/drivers/qeth/0.0.0700/fake_ll A value of 0 is off and 1 is on, you cat list the values use cat and set with echo. For all about fake_ll and LLC headers read the IBM Device Drivers PDF: http://download.boulder.ibm.com/ibmdl/pub/software/dw/linux390/docu/l26c dd03.pdf Mark ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
