Inconsistent address and Mask

[CiscoUser10]

When statically routing a route in the format [destination network address] [mask] [next hop address or interface name], I get the Inconsistent Address and mask error. Any assistance would be appreciated.

Network address:148.148.148.48
Mask: 255.255.255.0 (fitted to suit 300 host )
Hop address: 106.106.106.1

[omz]

Hi

as you have learned .. you can't do 

ip route 148.148.148.48 255.255.255.0 106.106.106.1

because 148.148.148.48 is not correct network id for subnet mask of 255.255.255.0

i think what you need is - 

ip route 148.148.148.0 255.255.254.0 106.106.106.1

and 255.255.255.0 does not cover 300 hosts it gives you 254 hosts

255.255.254.0 covers 510 hosts - 148.148.148.1 - 148.148.149.254

[Martin L]

to check your subnetting skills please use subnetting calc, this one is free online http://www.subnet-calculator.com/subnet.php?net_class=A

[paul driver]

Hello

ip route 148.148.148.48 255,255,255,255 106.106.106.1 <-- static host route

ip route 148.148.148.0 255,255,255,0 106.106.106.1 <-- static  route

[Richard Burts]

@omz and @paul driver have shown how to correctly configure the static route. I would like to approach the question from a slightly different perspective and talk about why it is inconsistent. If you want to specify 148.148.148.48 in the static route you are saying that all 4 octets have significance and should be considered in the route. But when you use the mask of 255.255.255.0 you are saying that only the first 3 octets are significant and that the fourth octet does not need to match. So the inconsistency is between the address indicating 4 significant octets and the mask indicating only 3 significant octets. You can solve the inconsistency by either using 4 significant digits in the address and changing the mask to match or you can keep the mask of 255.255.255.0 and changing the address to 148.148.148.0.