feldman@sun.com (Steve Feldman) (12/10/88)
I spent a few hours yesterday converting our class C Ethernet into a class B subnet, only to discover that none of the diskless clients would boot. They all hung after loading ndboot, while trying to load the kernel. I followed the instructions in the 3.3 upgrade document. A quick etherfind showed a client sending an nd broadcast to 131.146.0.0, but not getting any response. Our subnet is 131.146.2.*. Is there a step I've missed? We're running a mixture of 3.4 and 3.5 on our Suns, and there are also two 4.3BSD Vaxen and a Cisco gateway on the Ethernet. Thanks, Steve Feldman uucp: ..!sun!oliveb!tymix!feldman arpa: oliveb!tymix!feldman@sun.com
dlc@vetch.c3.lanl.gov (Dale Carstensen) (12/20/88)
You may not be able to get a class B network to work with pre-3.5 SunOS. And with 3.5 or newer SunOS, you need to set a netmask and probably a broadcast with the ifconfig commands in /etc/rc.boot. Example (all on one line): /etc/ifconfig le0 $hostname netmask 255.255.252.0 broadcast 128.165.23.255 -trailers up This is for a network where the lower 16 bits of the IP address are split between the 6 high-order for sub-net and 10 low-order for host, and the addresses for this subnet begin with 128.165.20 through 128.165.23.
mike@ists.yorku.ca (Mike Clarkson) (12/21/88)
oliveb!tymix!feldman@sun.com (Steve Feldman) writes: > I spent a few hours yesterday converting our class C Ethernet into a class > B subnet, only to discover that none of the diskless clients would boot. > They all hung after loading ndboot, while trying to load the kernel. I > followed the instructions in the 3.3 upgrade document. Did you remember to rename the symlinks in /tftpboot ? They are based on a hexadecimal representation of the Internet number. Did you set the netmask on the ifconfig line in /etc/rc.boot ? Did you remake the yellow pages on your YP master server with ypinit -m ? Mike. Mike Clarkson mike@ists.UUCP Institute for Space and Terrestrial Science mike@ists.yorku.ca York University, North York, Ontario, uunet!mnetor!yunexus!ists!mike CANADA M3J 1P3 +1 (416) 736-5611