I have configured a network. I have following equipments.
a) Cisco 3560 Switch
b) Cisco 2821 Router
There are two vlans configured on my switch named Vlan 2 and Vlan 3. I have configured port Gi0/8 on switch as trunk port. On router I have configured two subinterfaces which are Gi0/0.1 and Gi0/0.2 for Vlan 1 and Vlan 2. And routers Gi0/0 is connected to switch port Gi0/8.
a) Network 172.16.0.0/255.255.255.252.0 (Vlan 3) is configured on On Gi0/0.2
b) Network 192.168.40.0/255.255.255.255.0 (Vlan 2) is configured on On Gi0/0.1
Whenever I shutdown the subinterface Gi0/0.1, all the traffic of network 172.16.0.0 also goes down. Please suggest some solution!!!!!!!!!!
When you say network 172.16.x.x also goes down. What do you mean by that? How do you determine that? Is it not able to ping its gateway which is the sub interface address on the router? did you check if sub interface 2 stays up after shutting down sub interface 1?
you only mentioned 2 networks in your topology and if you shut down the logical routed port or gateway for one of them they won't be able to talk to each other. So I hope you are not trying to reach 192.168.x.x from 172.16.x.x after shutting the sub interface.
Even after shutting the sub interface 192 168 X X should be able to talk to other hosts in that subnet and for the other network it should have reachability to its gateway. Make sure physical interface on the router that is connected to switch is up and so is the sub interface associated with 192 168 X X address.
Please share the configuration of switch and router if you continue to have this issue and also the state of sub interface 2 after shutting down sub interface 1.
It means that whenever I shut down the subinterface Gi0/0.1 which is for network 192.168.40.0, the other network 172.16.0.0 also goes down. And that means users of that network can't access internet. They can perform interVlan routing in switch. But at router side they can't move forward to get access the internet.
I can't correlate these 2 networks until you share configuration. You mentioned users on network 172.16.0.0 are only affected if sub interface for 192.168.40.0 is shut down, so I am assuming when sub interface for 192.168.40.0 is up users on network 172.16.0.0 are able to access the internet, is this correct?
You didn't answer the question if users on 17.16.x.x network are able to ping the gateway for that subnet when sub interface for 192.168.40.0 is down.
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.