Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!husc6!rice!sun-spots-request From: dlc@vetch.c3.lanl.gov (Dale Carstensen) Newsgroups: comp.sys.sun Subject: Re: Help with subnets Message-ID: <8812112246.AA10810@vetch.c3.lanl.gov> Date: 20 Dec 88 07:06:53 GMT Sender: usenet@rice.edu Organization: Sun-Spots Lines: 11 Approved: Sun-Spots@rice.edu Original-Date: Sun, 11 Dec 88 15:46:07 MST X-Sun-Spots-Digest: Volume 7, Issue 63, message 8 of 11 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.