We have like 20 vlans on a network. We had DHCP relay configuration with all the vlans, all was working ok, but somehow today, one of the vlan is not receiving the proper addresses from the DHCP Server.
We have two SW-3850 in a stack as a Core, where we had this configuration:
interface Vlan1 ip address 10.2.0.11 255.255.0.0 !
ip address 10.100.30.1 255.255.255.0 ip helper-address 10.2.173.151 ! interface Vlan32 ip address 10.100.32.1 255.255.255.0 ip helper-address 10.2.173.151 ! interface Vlan34 ip address 10.100.34.1 255.255.255.0 ip helper-address 10.2.173.151 ! interface Vlan36 ip address 10.100.36.1 255.255.255.0 ip helper-address 10.2.173.151
each vlan has it proper DHCP scope configure on the Server; the Server is on VLAN1 as you can see.
Don't know why when I connect a client into an access port on the same switch on VLAN34 we receive an address from 10.2.0.0/26, more weird is that that client can navigate to other networks without being on a VLAN1 port.
This happens on wire and wireless devices on VLAN34 only, other VLANs are working ok.
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.