Messages in this thread | | | From | Keith Owens <> | Subject | Re: Is netmask 255.255.255.254 illigal? | Date | Sun, 12 Jan 1997 16:49:46 +1100 |
| |
On Sat, 11 Jan 1997 22:46:39 -0500 (EST), Eugene Kanter <eugene@saturn.net> wrote: >kernel 2.1.20 > >ifconfig eth0 206.42.0.97 netmask 255.255.255.254 broadcast 206.42.0.255 >SIOCSIFNETMASK: Invalid argument > >What is wrong? > >Did I do something not right or it is kernel bug?
netmask 255.255.255.254 only leaves 1 bit host addresses. Since you must have a network (all bits 0) and a broadcast address (all bits 1), this leaves no room for hosts. 2.1.20 checks and rejects this. If you really mean a broadcast address of 206.42.0.255 then your netmask should be 255.255.255.0.
| |