OK,let me start, i have setup simple networking system for connection between two VLANs using 2950 switch and 1841 router. The problem is I dont know how to configure 1841 router to enable VLAN1 and VLAN2 to communicate each other(to enable PC VLAN1 can ping PC VLAN2).Please refer the diagram:
Please advise me how to configure 1841 router to make VLAN1 and VLAN2 can communicate.
Re: How to connect inter VLANs?
7 years 2 months ago #36853
For communication to work between VLAN's, there are two configurations you can choose from.
1. Traditional Inter-VLAN Routing
For the topology you have provided, Router-on-a-stick would work best, since you are only using one router interface.
You will need to make the link between the router and switch a trunk link and assign sub-interfaces to the connected router interface. (i.e. For Fa0/0 you would have Fa0/0.10 and Fa0/0.20) Follow? Assign VLAN 10 to sub-interface Fa0/0.10 and VLAN 20 to Fa0/0.20.
Before you assign IP addresses to the sub-interfaces, you must configure an encapsulation method (i.e. dot1q) on the router for EACH INTERFACE.
Assign IP addresses to the sub-interfaces according to the subnet used in each corresponding VLAN AFTER the previous step.