Why cant my switch ping my pc?

[WIZARD1325]

PC ----Switch----Router

Switch can ping Router

PC can ping Router

but my switch can't ping my PC ? why is this? Just curious I mean my internet works fine and everything works normal as it should.

interface FastEthernet1/0/1
switchport access vlan 10
switchport trunk encapsulation dot1q
switchport mode trunk
speed 100
duplex full

interface FastEthernet1/0/24
switchport access vlan 10
switchport trunk encapsulation dot1q
switchport mode trunk
speed 100
duplex full

----------------------------------------------

Nothing shows on CDP neighbors for switch

SW-1#show cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone,
D - Remote, C - CVTA, M - Two-port Mac Relay

Device ID Local Intrfce Holdtme Capability Platform Port ID

-----------------------------------------------

SW-1#show mac address-table dynamic
          Mac Address Table
-------------------------------------------

Vlan    Mac Address       Type        Ports
----    -----------       --------    -----
   1    000f.ff19.ae77    DYNAMIC     Fa1/0/24
   1    0805.81e8.c986    DYNAMIC     Fa1/0/24
   1    14bb.6e92.d63b    DYNAMIC     Fa1/0/24
   1    3c7a.8ad7.bdc7    DYNAMIC     Fa1/0/24
   1    3c7a.8ad7.bdce    DYNAMIC     Fa1/0/24
   1    6c0b.84f8.f20e    DYNAMIC     Fa1/0/24
   1    a01d.48ed.da40    DYNAMIC     Fa1/0/24
   1    ac22.0bbe.a73a    DYNAMIC     Fa1/0/24
   1    ac63.bec3.9031    DYNAMIC     Fa1/0/24
   1    ac9b.0a30.3c22    DYNAMIC     Fa1/0/24
   1    d073.d514.86b4    DYNAMIC     Fa1/0/24
   1    d073.d514.9a5b    DYNAMIC     Fa1/0/24
   1    d4be.d90b.ff45    DYNAMIC     Fa1/0/1
   1    ec1f.729a.13fe    DYNAMIC     Fa1/0/24
   1    f45c.89c0.0d43    DYNAMIC     Fa1/0/24

-----------------------------------------------------------

SW-1#show int fa1/0/1
FastEthernet1/0/1 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 001e.133d.6483 (bia 001e.133d.6483)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:01:24, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 7000 bits/sec, 6 packets/sec
14656 packets input, 2478722 bytes, 0 no buffer
Received 1272 broadcasts (687 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 687 multicast, 0 pause input
0 input packets with dribble condition detected
33478 packets output, 23736339 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out

SW-1#show int fa1/0/24
FastEthernet1/0/24 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 001e.133d.649a (bia 001e.133d.649a)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 4000 bits/sec, 4 packets/sec
5 minute output rate 1000 bits/sec, 2 packets/sec
37835 packets input, 24408469 bytes, 0 no buffer
Received 14282 broadcasts (7770 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 7770 multicast, 0 pause input
0 input packets with dribble condition detected
16907 packets output, 2593299 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out

[thiland · Accepted solution]

A few things you should clarify in your post:

• The L3 VLAN interface configuration of your switch
• Interface descriptions for F1/0/1 and F1/0/24 (which goes to PC, which to router)

It looks like you've likely configured a trunk interface to the PC.  Since the PC probably isn't configured with 802.1Q encapsulation, when the switch receives an untagged packet, it will assume it belongs to the native VLAN (default 1).

My guess is your L3 management interface on the switch is configured as "interface VLAN10" which is not on the native VLAN.  Maybe you have your router configured with 802.1Q trunking as well, but you'd need to specify that part of the config.