hi all im following through a cbtnuggets ospf lab but it asks to do 7 loopback addresses with the addresses 172.30.0.0-172.30.7.0 sh ip prowith a mask of 255.255.255.0 i know this is a class b add and the default mask is 255.255.0.0,i have done the command ip classless(the command is accepted but in sh run its not displayed,does this mean this ios doesnt support it) but i can not add the /24 mask to the interfaces it says /24 bad mask for 172.30.0.0.how would i get it to accept this mask for those addresses,iknow i could change them to the /16 mask but wanted to stay on the same as the vid to keep things simple.
thanks chris
