Hi Laurence,
Laurence Shen wrote: > Hi, Jan, > > By changing the ISO image, AI is working properly for systems in the > same subnet. A system can not be installed on a different subnet. > > bash-3.2# snoop -V 10.6.239.87 > Using device nge0 (promiscuous mode) > ________________________________ > mpk14-2404-239-87.SFBay.Sun.COM -> 224.0.0.251 ETHER Type=0800 (IP), > size=95 bytes > mpk14-2404-239-87.SFBay.Sun.COM -> 224.0.0.251 IP D=224.0.0.251 > S=10.6.239.87 LEN=81, ID=18465, TOS=0x0, TTL=255 > mpk14-2404-239-87.SFBay.Sun.COM -> 224.0.0.251 UDP D=5353 S=5353 LEN=61 > mpk14-2404-239-87.SFBay.Sun.COM -> 224.0.0.251 MDNS C > osol_ai._OSInstall._tcp.local. Internet Unknown (33) ? > ________________________________ > > After checking with IT, it turns out broadcast and multicast are > blocked between subnet networks by default. Thus, AI will fail on a > client system which is located in different subnet segment without > multicast for mDNS. > > Is there any solution to workaround this issue by AI? At time of being, only multicast DNS is supported for AI service discovery - that means AI server and AI client must reside on the same local link. The workaround might be to use take advantage of forwarding multicast traffic, but I haven't tried yet (I think multicast capable router will need to be used, as routing of multicast packets require special treatment), so I am not sure if it might help you to solve your problem. As far as longer term solution is concerned, AI will support unicast DNS for service discovery and in that case, it will be possible to run AI server on different subnet. Thank you, Jan > > Thanks. > > -Larry > > > > jan damborsky wrote: >> Hi Larry, >> >> >> larry wrote: >>> After configured opensolaris AI (automated install) server by >>> following the instruction from >>> http://dlc.sun.com/osol/docs/content/2008.11/AIinstall/scenario.html, >>> I have two ai_client systems both showing the following messages on >>> screen while installing osol-2008.11 from the AI server: >>> ============================================== >>> SunOS Release 5.11 Version snv_101b 64-bit >>> Copyright 1983-2008 Sun Microsystems, Inc. All rights reserved. >>> Use is subject to license terms. >>> Hostname: opensolaris >>> Remounting root read/write >>> Probing for device nodes ... >>> Preparing live image for use >> >> This message indicates that you passed incorrect ISO image >> file to installadm(1M) command when configuring AI server. >> >> When AI is in process of preparing AI environment for the >> installation, following message should be seen instead: >> >> Preparing automated install image for use >> >> Correct ISO image containing AI environment could be obtained >> from following location: >> >> http://dlc.sun.com/osol/opensolaris/2008/11/osol-0811-ai.iso >> >> Following bug was filed against installadm(1M), so that it informs >> user in the case incorrect ISO image was provided: >> >> 4712 setup-image giving warnings -installadm is not checking validity >> of image >> http://defect.opensolaris.org/bz/show_bug.cgi?id=4712 >> >> Thank you, >> Jan >> >> >>> Requesting System Maintenance Mode >>> (See /lib/svc/share/README for more information.) >>> Console login service(s) cannot run >>> >>> Enter user name for system maintenance (control-d to bypass): >>> ============================================== >>> >>> All three systems are connected in an isolated private network and >>> the AI server also hosts DNS and DHCP server. >>> >>> Could someone shed some light on me? >>> >>> Thanks. >> >
