CCNAv7 Lab 7.3.7 S2 not response to ping

[deadcode]

I've encountered issue as the Cisco Switch 2960 (configured as S2) in the lab does not response to ping.

PC-A can ping PC-B and S1

PC-B can ping PC-A and S1

S1 can ping PC-A and PC-B

S2 failed to ping S1, PC-A and PC-B

S1, PC-A, PC-B failed to ping S2

It looks like to be S2 become a ghost device.

I followed the lab instruction to configure all devices.

Attached please find the package tracer for reference.

Any insight would be greatly appreciated

[marce1000]

               - FYI : Community group for Packet Tracer project questions

 M.

[Martin L]

it seems to be ok, all pings are fine after first 2 fail; remember before u can ping, ARPs must be resolved

u must give some time for switches /PCs to build ARP and MAC tables 

Regards, ML
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[deadcode]

Thanks for your information.

I've no problem in packet tracer. But I have problem pinging S2 in the same setup in actually lab in school.

[Said73]

Switch(config)#hostname S2
S2(config)#interface vlan 1
S2(config-if)#ip address 192.168.1.12 255.255.255.0
S2(config-if)#no shutdown

S2(config)#line console 0
S2(config-line)#password cisco
S2(config-line)#login

S2(config-line)#line vty 0 15
S2(config-line)#pass cisco
S2(config-line)#login
S2(config-line)#exit

S2(config)#enable secret class

Best Regards,

[deadcode]

Thanks Said73, your answer  was what I did in the actually lab in school. And I can't ping S2 in the lab. No problem in package tracer though. Tried couple times in different lab but S2 still remains unresponsive to ping

[deadcode]

Below is how I setup the switch

>enable

# show flash

# delete vlan.dat

# erase startup-config

# reload (no/no)

> enable

# config terminal

For S1 only:

# hostname S1

For S2 only:

# hostname S2

# interface vlan 1

For S1 only:

# ip adress 192.168.1.11 255.255.255.0

For S2 only:

# ip address 192.168.1.12 255.255.255.0

# no shutdown

# line console 0

# password cisco

# line vty 0 15

# password cisco

# login

# end

# configure terminal

# enable secret class

[Martin L]

oh, so those are real c2960 switches in classroom with lots of users using it (i.e. previous class);

can directly connected PC to s2 ping its switch s2 ?  make sure PC firewall is off.

can switch 1 ping switch 2 ?

then check CAT5 cables, use crossover cable between switches; check interface vlan 1 is UP UP (interface vlan no shut with IP address), make sure all ports are in vlan 1 for now.  other useful commands are: show vlan brief , show interface trunk ; show interface status ; and show interface status err-disable, show arp , show mac-address-table

You should delete vlan.dat, erase startup-config, write (copy run start), add your new configs and reload choosing YES to save configs again and reboot. 

 Regards, ML
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[deadcode]

Hi Martin,

PC-B (the one connected to S2) cannot ping its switch S2. PC-B can ping all the other three devices. So PC firewall is not an issue.

Switch 1 cannot ping Switch 2 as well. Switch 2 is totally un-pingable by any devices.

But PC-A can PC-B so both switch is actually working as expected. Switch 2 just not responsible to ping.

I did reset both switch before setup as per your mentioned. (delete vlan.dat, erase startup-config then reload)

I'll try those show commands in next lab.

Thanks a lot.

[Martin L]

is interface vlan 1 UP UP state? earlier I forgot one of major commands show ip int brief that shows u IP and state of interface.  it should be UP UP.  And is there a MAC addresses listed (added) in show run under interface vlan 1? Maye there is MAC conflict with other PCs

Finally, check SDM template/ profile of Switch2 and set to default, save and reboot switch - Forgot exact command for SDM. Not likely that is fault of failure but does not hurt to check it. 

Regards, ML
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[deadcode]

It is like 8 months and I happened to revisit this and everythings is working now. Not sure what's wrong 8 months ago though. Thanks a lot guys.