I can't ping my fa0/0 from my fa0/1 network..

[Ngjohnquilla]

I have a cisco 2600 router and a 3550 switch

Conf of my switch

vlan 10(active and up)

 fa0/1 this is connected to my router fa0/0

 fa0/3 this is connected to my laptop A

Conf of my switch

vlan 20(active and up)

 fa0/5 connected to my router fa0/1

 fa0/9 connected to my  laptop B

**************************************

Conf of my router 2600

Fa0/0 ip address 10.1.10.1

Fa0/1 ip address 10.1.20.1

Ip route 0.0.0.0 0.0.0.0 fastethernet 0/1

My question is why cant i ping fa0/0  from fa0/1

My laptop B

ip address is 10.1.20.12

Gateway 10.1.20.1

My laptop A

Ip address is 10.1.10.12

Gateway 10.1.10.1

[Ngjohnquilla]

What do you mean about the default route? Can you show me how to remove it?

[SATISH KATTIKA]

Please excute below commands .

R1#no ip-route

R1#ip route

[Ngjohnquilla]

Thank you! I will definitely try this one.. but this is a single interface connection right? I mean trunk to router? My previous configuration was switchport to router interface fa0/0 and fa0/1.. but i guess that wouldn't work..

[SATISH KATTIKA]

Yes , Single Interface trunk connection.

[Ngjohnquilla]

I have tried your suggestion but why is it that i get invalid  inout detected when enter 

Router <config-subif>encapsulation

It doesnt accept encapsulation 

[SATISH KATTIKA]

What model switch you have

[SATISH KATTIKA]

Un shut the interface and try.  If not you have to look for iOS up gradation 

[Ngjohnquilla]

I have a 3550 switch and ios version 12.3<23>..  

[SATISH KATTIKA]

Sub interface should be created on router , hope you are creating on the router 

may be iOS on router is not supported, you may have to go for iOS upgradation 

post me rhe router model

[Ngjohnquilla]

I got a 3550 switch and 2600 router with ios version 12.3.. can you help me where to download ios version 12.2<9> because i think the issue is on ios version.. and how to install it?

[SATISH KATTIKA]

Go to Cisco.con and downloads you should have a valid cisco id 

here you you with the procedure for iOS up gradation 

http://www.cisco.com/c/en/us/support/docs/routers/3800-series-integrated-services-routers/49044-sw-upgrade-proc-ram.html

[chrihussey]

The statics were definitely causing an issue and it should work

1- Clear the mac address table in the switch:

 clear mac address-table dynamic

2- Clear the arp cache in the router

     clear arp

3- Remove the mac security from f0/9

4- Reboot your PC

[Ngjohnquilla]

Should i assign ip address to my vlan 10 and 20?

[Ngjohnquilla]

I followed everything here but it seems that it's not working. . This give me a headache. ..

[Ngjohnquilla]