Hello friends, I have Router_A (FastEthernet0) and Router_B (FastEthernet0) connected to Switch_A on FastEthernet1/0/1 and FastEthernet1/0/2.

Router_A

FastEthernet0 IP address: 172.18.123.2 /24

Router_B

FastEthernet0 IP address: 172.18.123.3 /24

Switch_A

Vlan123 IP address: 172.18.123.250 /24

Both FastEthernet1/0/1 and FastEthernet1/0/2 belong to VLAN123 on the switch.

Port      Name               Status       Vlan       Duplex  Speed Type

Fa1/0/1                      connected    123        a-full  a-100 10/100BaseTX

Fa1/0/2                      connected    123        a-full  a-100 10/100BaseTX

I have EIGRP running on both routers and neighbors are UP on both ends.

I have another VLAN on the switch (VLAN120) with IP address 172.18.120.1 /24.

I have port FastEthernet1/0/13 assigned to VLAN 120 and it has a PC plugged into it with IP address 172.18.120.240 /24

IP Routing is enabled on the switch.

From the switch I can ping both routers.

From the PC I am able to ping 172.18.120.1 but I can't ping 172.18.123.2 or .3.

What do I need to configure on the switch in order for my PC on vlan 120 to be able to ping the routers?