I have a weird issue in my lab network. Below is my present layout.
3750x <-----long IP Backhaul(trunk line)-------> 3750x ---->test hardware
I have a /25 vlan trunked between the two 3750X. If the test hardware is set to 10.48.100.83, I cannot ping the test hw from the vlan gateway(10.48.100.1/25) at the far end 3750x. If I change the test hw to 10.48.100.43, I am able to ping it. The network is segmented to /25 but only the first half of the subnet seems valid. Any ideas?