Hello 1935 -
I am sorry, but I do not understand what you mean by "the second vlan has the same network as the Cisco 2500 router". Do you that they have the same network (that is, IP) address, or that they are on the same IP subnet, or something else?
Also, by your comment, "can I then set the time server on HP?" I assume that you meant "ca I then set the TimeP (or SNTP) CLIENT on HP?", right?
Regards,
Ralph