Switching

Hi Everyone,

It may great if you can help me with my problem.

I have EX2200 switch (L3 switch) and I need to setup an Intervlan Routing so User from different vlan can communicate each other. My problem is i've already config my switch but still unable to achieve my goal. 

Please see below my configuration.

Vlan Interface:

vlan {
         unit 10 {
                 family inet {
                 address 10.10.10.1/24;
                 }
         }
         unit 20 {
                family inet {
                address 20.20.20.1/24;
                 }
          }
          unit 259 {
                  family inet {
                  address 121.96.56.232/28;
                  }
          }
}

Interface Port Mode:

interfaces {
           ge-0/0/0 {
                      unit 0 {
                          family ethernet-switching {
                               port-mode access;
                               vlan {
                                      members vlan10;
                               }
                          }
                       }
             }
             ge-0/0/1 {
                      unit 0 {
                          family ethernet-switching {
                                port-mode access;
                                vlan {
                                       members vlan20;
                                }
                           }
                      }
             }
            ge-0/0/2 {
                     unit 0 {
                            family ethernet-switching {
                                 port-mode access;
                                 vlan {
                                      members vlan259;
                                 }
                             }
                       }
             }

}

Vlan Interface binding:

vlans {
         vlan10 {
                 vlan-id 10;
                 interface {
                        ge-0/0/0.0;
                  }
                 l3-interface vlan.10;
         }
         vlan20 {
                vlan-id 20;
                interface {
                        ge-0/0/1.0;
                }
                l3-interface vlan.20;
         }
         vlan259 {
               vlan-id 259;
                interface {
                        ge-0/0/2.0;
                }
                l3-interface vlan.259;
         }
}

I'm not so sure if i missed anything else on my configuration. 

best regards,

JM Espanol

Yehp sure, you did not miss any thing but some time overdoing is not good. You have assigned interfaces to vlan at two different hierarchies , one under interfaces and under vlan, delete one of it I hope this will resolve your problem

Hi Kashif Nawaz,

I've already done with that but still not working.

Please see my configuration attached on this.

kind regards,

JM Espanol

Attachment(s)

config_.txt   7 KB 1 version

output of show route could be helpful, as well as show interface terse.

Not that it will affect L3 routing but you're tagging vlan 30 with id 259.

    vlan30 {
        vlan-id 259;

Hi smicker,

Sorry I forgot to edit that one that would be vlan-id 30.

kind regards,

JM Espanol

Hi Guys,

I found out whats wrong with my setup. I've configured my end device with wrong default gateway. However I'm still having a problem.

Image above will be my setup. As of now my DNS server is configured with IP and Gateway above. As you can see DNS server is not configured with Gateway IP 30.30.30.1 as my configuration on juniper switch that's the reason why vlan 10 and vlan 20 won't able to reach the dns server.

To achieve my setup do i need to configure my juniper switch with routing? What is my route?

set routing-option static route 0.0.0.0/0 next-hop 30.30.30.2

or 

set routing-option static route 0.0.0.0/0 next-hop 30.30.30.10 

Please advise.

It should be,

set routing-option static route 0.0.0.0/0 next-hop 30.30.30.2

Thanks,

/Charlie

The DNS server and all clients on the vlan 30 would need to use the vlan.30 IP address 30.30.30.1 as the gateway, otherwise, how will the traffic leave the vlan? Unless you create a static route on the DNS server for destination 30.30.30.2 gateway 30.30.30.1

And yes the GW or the switch to use should be

set routing-option static route 0.0.0.0/0 next-hop 30.30.30.2

Hi lyndidon,

I appreciate your explanation it  helps me.

kind regards,

JM