Hi, Am 25.05.11 12:48, schrieb Simon Annear:
At least I can spot an error here: > Here is the output of utquery on my sunray > > > me@sunray29:/opt/SUNWut/sbin$ ./utquery 192.168.0.199 > terminalID=080020f94a6a > terminalIPA=192.168.0.199 > model=CoronaP2 > currentAuth=192.168.0.29 > currentFW=4.3_50_2011.04.22.22.07 > currentBarrier=430 > currentBarrierLevel=430 > currentMTU=1472 > currentLease=5791 > Subnet=255.255.255.0 > Router=192.168.0.210 > MTU=1472 The MTU of 1472 is definitely wrong here. You most probably followed the following guide to find your optimal MTU settings: http://blogs.oracle.com/ThinkThin/entry/the_importance_of_mtu However, the author there was slightly wrong and suggested to simply use the ping command and increase the buffer size until fragmentation of packets occur. That's why you most probably have set 1472 here. But the buffer size you usually specify with the ping command is without including the header size of the IP packet itself. So to correctly identify your maximum MTU size you need to add 28 bytes to the value you found being the one that was transferred without getting fragmented. Thus, if you used the ping command and identified 1472 bytes to be transferred without getting fragmented you need to add 28 bytes and you have to set 1500 for your MTU. Therefore you should set your MTU to 1500 in the DHCP settings that get send to your sunrays. best regards, jens -- Dr. Jens Langner Ph: +49-351-2602757 Helmholtz-Zentrum Dresden-Rossendorf Institute of Radiopharmacy - PET Center [email protected] Germany http://www.hzdr.de/ _______________________________________________ SunRay-Users mailing list [email protected] http://www.filibeto.org/mailman/listinfo/sunray-users
