Just pickup a cisco 2501 router and a 1912 switch

HKSturboKID

Golden Member
Oct 20, 2000
1,816
0
0
Guys,

I just pickup a cisco 2501 router and a 1912 switch.

Pretty much I connected the transceiver to the router aui port
run the cable to the port #1 on the switch
turn both on.
wait for both to boot up and display all the mumble jumble
setup the ip address on the router as 192.168.1.1 255.255.255.0
setup the ip address on the switch as 192.168.1.10 255.255.255.0
The link light on the switch is green
CDP is enable on port 1 on the switch
Check the port and it states its enable on the switch

How come I can't see the router when I do a show cdp nei from the router
How come I can't see the router when I do a show cdp nei from the switch

I was trying this over my friends house and i have no problem. Do I have to configure anything else to see this.

Thanks.

 

tjmaxz

Junior Member
Oct 8, 2002
19
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0
CDP by default sends update packets every 30 seconds. So maybe you want to wait a bit before you check.
Also, it's always a good practice to ping the connections and see if they are up. This help for me especially cuz I always forget to no shut the interface :p

you could always use
debug ip packets
to verify if cdp updates are sending.
But never issue that command in production environment, or in big lab without filtering the result.

and use
show cdp
to see what are the settings for cdp (timers and such).

Hope this help.