I have an issue with VLANing. I have everything configured properly on 8 switches and a router. This is a router-on-a stick design. I am planning on using 5 3560 Cat switches with VLAN 54(default gateway 10.10.54.1 VLAN1 10.10.54.2) and 3 3560 Cat switches with VLAN 51(default gateway 10.10.51.1 VLAN1 10.10.51.2). All switches have the trunk ports with dot1q configured properly as well as the subinterfaces on the router.
When I assign an Ip address to a client that is plugged into one of the swiches that have VLAN54 and try to ping the switch or router, the ping fails. The same is true when I try to ping the client from the switch or the router. What seems to be the problem ?
2- When should I configure a native dot1q on the router? Is it required when configuring a router-on-a-stick?
Attached is the output from the router and one of the switches.
I was able to ping from a PC to a router and vice versa. The router's port is plugged into the same switch(SW1) as the PC and this switch (SW1)is configured with VLAN54. However, the PC that is connected to other switch(SW2), which is configured with VLAN 51 and has a trunk port connected to SW1, is unable to ping the router and the router isn't able to ping this PC. I spent almost half a day trying to figure out why this is happening but couldn't. Any assistance will be appreciated!!
Thank you Jon!! You did enlighten me on creating VLAN51 on SW1 and that did the trick. I acutally configured SW2 with the same VTP domain and gave it a server mode where the same VLANs were replicated to both switches.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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