@matgar, well i just wanted to borrow 1 bit from network add, but i couldn't use 255.255.254.0 mask. it wouldn't match the leftmost bits of the network add, i think.
if you guys have some time, could you please check this PKT
. particularly the routing table, running config in R1 n R3. Thank you.
I don't have PT so i cant check your file, but I'm not sure why you won't accept what we are telling you.
172.16.0.0/25 will conflict with 172.16.0.0/22 or /23 /25 /21 as well for that matter.
I would suggest you use an online subnet calculator if your doubting us or need to have it visual before your eyes.
Try adding 172.16.1.0/22 and you will see that it states the net id 172.16.0.0 and that valid ip is 172.16.0.1 to 172.16.3.254 which means that you cannot use a subnet/ip that falls within that range on another place.