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jordan-jj
Beginner

inconsistent address and mask for static routing

I am trying to  create  static ip  route from R3 to R1  

R3 :  30.30.30.2 /24

R2;30.30.30.1/24  and 10.10.10.2/8

R1:10.10.10.1 /8

R3:ip route 10.10.10.0 255.0.0.0 30.30.30.1  

The above returns inconsistent address and mask error for R3 : 

7 REPLIES 7
Karsten Iwen
VIP Mentor

If the network is a /8, then the network-address that you have to use in the "ip route" statement ist 10.0.0.0:

ip route 10.0.0.0 255.0.0.0 30.30.30.1
pwwiddicombe
Enthusiast

R2 and R3 both have identical IP addresses?  that probably won't do what you want !

(30.30.30.1/24).  Did you intend one to be 30.30.30.2/24 for one of them, maybe ?

edited

PS - if you aren't running a routing protocol, you'll also need a static on R1, to get to the other 2 routers, for the 30.30.30.0/24 network.  Even pings from R3 to R1 would fail, as the packet would make it R3->R1, but there wouldn't be a return path.

(Unless you happened to have ip proxy-arp enabled on R2).

I am trying to  create  static ip  route from R3 to R1  
R3 :  30.30.30.2 /24
R2;30.30.30.1/24  and 10.10.10.2/8
R1:10.10.10.1 /8
R3:ip route 10.10.10.0 255.0.0.0 30.30.30.1  
The above returns inconsistent address and mask error for R3 : 

Hi,

Either you do proper subnetting for your destination network and do routing configuration, As 10.10.10.1 will fall under 10.0.0.0/8 ..so put route for 10.0.0.0/8 on your R3 towards R2 and check the connectivity.

Hope it Helps..

-GI

hi 

How come 10.10.10.10/24 comes under /8 network. ? I thought that i am implementing classless routing

Yes, you need either

R3:ip route 10.0.0.0.0 255.0.0.0 30.30.30.1  

or   ip route 10.10.10.0 255.255.255.0 30.30.30.1

You can't effectively "wildcard out" in the subnet mask and include all the details, as it doesn't make sense.