bug in 43 ???

xxxxserver[/]# lsattr -El inet0 | grep 255.240.0.0,32.224.0.0,32.78.120.254 | grep '.40'
route net,-hopcount,1,-netmask,255.240.0.0,32.224.0.0,32.78.120.254

How this is possible?

You have to escape the period

<stuff> | grep '\.40'