I have 2 switches and 1 router and 3 VLans 10,20 an 99.I cannot ping the P.C. from Vlan 99 to either Vlan 10 or Vlan 20.Vlan 10 and 20 can ping each other.I have attached the configs of R1, S1 and S2 and your help with be deeply appreciated.
Please remove layer-3 SVI interface from switch 1 (SW1)
remove the following.
interface Vlan99 ip address 172.17.99.2 255.255.255.0 !
All the inter-vlan routing is happening at the R1.
hope that helps you.
My issue has been resolved by allowing all Vlans at port fa0/1 ie., the trunk port at S1 which is between S1 and R1.I couldn't remove the SVI interface from S1 as I need to access it from PC3 since its a part of the management Vlan99.
I really appreciate you to take out the time and respond to my question.