L2 Switch MAC table

[Dragonss]

hello guys, there is one scenario where i am stuck. 

We have extended cable from ISP's MUX to port 5 of L2 switch. i have created vlan 10 on switch and port 5 is member of it. when i pinged next hop it is not working. then I checked with ISP, they said mac address is not learned from switch end. so for further TS i connected laptop to same switch port and i asked ISP to check, then they confirmed mac address is visible , but when i revert and connect to switch same issue. 
But on same port 5 of switch i ran command show mac address table int gi1/0/5 i can see mac address. i have asked ISP to confirm which device mac address we are learning(should be of mux.)

Anything more we have to check at switch level. ?

[Dragonss]

@MHM Cisco World  can you plz share your inputs on this topic as well

[MHM Cisco World · Accepted solution]

First please close previous two post.

Now for this since pc is send mac and switch not.

Only try ping from SW using vlan10 svi  as source.

[Dragonss]

ok, how to close the post

[MHM Cisco World]

Select any answer as solution.

Thanks 

MHM

[Mathias Garcia]

Some questions to give a better understanding of the scenario.
Where are you pinging from?
Is that device also on a port assigned to vlan10, or are you routing the trafik?
What status is port 5 when connected to the MUX? Does it negotiate to the right speed and duplex?
A simple drawing of the intended topology would also be useful.

[Dragonss]

Where are you pinging from - pinging next hop from firewall. 

Is that device also on a port assigned to vlan10, :- yes in diagram both ports 5 and 6 are members of vlan 10

What status is port 5 when connected to the MUX? Does it negotiate to the right speed and duplex?:- Yes port is up and negotiate correct speed and duplex