Wow Thanks Alan It Works ! Been fighting this for a long time.
Gary Ernst On Apr 15, 2012, at 9:28 AM, Alan Altmark wrote: > On Friday, 04/13/2012 at 03:07 EDT, Martha McConaghy <u...@vm.marist.edu> > wrote: >> However, when we try to ping the adapter on the far side of the router > from >> the network, the packets make it as far as the OSA and then drop. Our > TCPIP >> routing guru, Alan Altmark, reminded me that the PRIROUTER setting has > to be >> turned on in the vswitch for the OSA to recognize that it will be > routing >> other traffic through it. I've got that set now, but am still seeing > the >> problem. >> >> If this were a VM TCPIP machine, I would have to also set PRIROUTER on > the >> DEVICE statement to get this to work (I'm tempted to switch over to this > if I >> can't get it working). Is there an equivelent setting for qeth? I've > been >> googling around, but haven't found anything. > > Yes. Look for "primary_router" in the Linux Device Driver book. > > # echo primary_router > /sys/bus/ccwgroup/drivers/qeth/0.0.<addr>/route4 > (Similarly for route6.) > > Sorry I forgot to remind you of the need for primary router status in the > guest, too. This is why I don't like Layer 3 OSA. Too much to remember. > :-) > > Since each guest has its own "dedicated" virtual NIC, all guests can have > primary_router status, but keep in mind that that all incoming packets > with unrecognized (by CP) destinations IPs are copied to all guests with > primary or active secondary router status. (The VSWITCH doesn't have > "learning mode" and doesn't maintaing a forwarding database.) > > Alan Altmark > > Senior Managing z/VM and Linux Consultant > IBM System Lab Services and Training > ibm.com/systems/services/labservices > office: 607.429.3323 > mobile; 607.321.7556 > alan_altm...@us.ibm.com > IBM Endicott > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
