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How to setup interVlan communication?

kenleung77
Occasional Contributor

How to setup interVlan communication?

I have purchased a 3com switch 4500( 3CR17761-91) 5 days ago.  I am worried over how to setup interVlan communication on it.  Could you please help me to solve the technical problem shown as below? Otherwise, i will highly probably get sack. Please help me!


 


I have build up 3 Vlans and details as following:


 


Vlan 1 : 192.168.1.254  255.255.255.0 ---------> connected with a group of desktop computer and a router (1) to internet


Vlan 2 : 192.168.2.254  255.255.255.0 ---------> connected with a computer (VPN client) and a route (2) to internet


Vlan3  : 192.168.3.254 255.255.255.0 ----------> connected with a network printer.


 


Routing table:


0.0.0.0     0.0.0.0     192.168.1.1   Vlan-inter1   ( Router 1)


192.168.1.0     255.255.255.0     192.168.1.254 Vlan-inter 1


127.0.0.0 .............   .............    Vlan-inter 1 


192.168.2.0     255.255.255.0     192.168.2.254 Vlan-inter 2           


127.0.0.0 ............  ...............    Vlan-inter 2




192.168.3.0     255.255.255.0     192.168.3.254 Vlan-inter 3




 


127.0.0.0 .............   .............    Vlan-inter 3




 


 


I would like the network printer share with Vlan 1 and Vlan 2, but between Vlan 1 and Vlan 2 must be isolate. I have use command "ping" a lot of time between Vlans, but failed. 


How can i setup a interVlan communication between them?


is the network infrastructure is wrong ?


is my concept is wrong?