Can anyone tell me how come my switch knows only to issue my dhcp pool to the relevant vlan, the vlan and dhcp pool are are the same subnet, but what if I didnt have a vlan in that subnet, would it not issue them ?
I'm not entirely sure on what you mean, however I'll explain a bit on how I see your question.
Basically a PC on a subnet will send a Layer2 Broadcast requesting an IP address and various other details. Therefore, you will find that in most cases the DHCP server should be on the same subnet to receive the broadcast frame.
All your switch does is forward frames (unicast, broadcast and multicast) across the same Vlans that are configured. Generally speaking switches do not forward to different vlans unless you have configured a multilayer switch.
The exception in the dhcp case is where you use a dhcp relay agent to forward dhcp requests across different subnets to a central dhcp server.
Please let me know if this makes sense or not. I'm not quite sure what you mean if you didn't have a vlan in that subnet.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.