Cisco things

Sometimes, I feel like I stuck in a text book problem.   Because the silly system isn't doing what it is supposed to do.

So!   You have a cable run to two locations that are beyond the 330 feet range of CAT5.  The conduit running through the ground is broken and filled with water.  That will make the pull easier, but otherwise causes havoc.  You run 330 feet of CAT 5 out, and put in a dumb (not managed) switch you bought from the local store just to get this all working.

Run a 2nd cable the remaining 50 or so feet off to your managed switch.   Disable all port security because this is a switch.   End up with a config that looks like... 

interface FastEthernet0/11
 description ==dumb switch==
 switchport access vlan 2
 switchport mode access
 macro description cisco-desktop
 spanning-tree portfast
 spanning-tree bpduguard enable
end



Plug in your wonderful cable.  And get NOTHING.  Set to DHCP, the system can draw an IP address, but it can't ping the gateway.  Plug your laptop into the end of the line (the same line you'd plug into your managed switch) and you can ping all day long. 




Move the line over the your router and set that up like so....

interface FastEthernet6
 description == Dumb Switch==
 switchport access vlan 2
 no ip address
end



Now, you can 1) Get an address using DHCP, 2) Ping/SSH/Telnet the gateway 3) Connect to the outside world. 

Problem is, you can't connect to ANYTHING else in the same VLAN.    What a crock...  

Yeah, my life is occasionally a text book problem.