Trunk help

[whiteford]

Hi, based on:

http://www.cisco.com/en/US/tech/tk389/tk815/technologies_configuration_example09186a00800949fd.shtml

A little progress, the trunk is nearly working I think, but both PC's can't ping each other.

I have a PC (PC A) with:

IP address - 192.168.2.50

Gateway - 192.168.2.1

In FE 0/9 of switch VLAN10

I have a PC (PC B) with:

IP address - 192.168.3.10

Gateway - 192.168.3.1

In FE 0/17 of switch VLAN20

PC A can ping 192.168.2.1 and 192.168.3.1

PC B can ping 192.168.3.1 but NOT 192.168.2.1

What could this be?

[Giuseppe Larosa · Accepted solution]

Hello Andy,

I was meaning

sh int fas0/1 switchport

Excuse me for not having typed an enter before.

I got it :

no ip routing

in the router config

you need to turn ip routing on the c2600

conf t

ip routing

Hope to help

Giuseppe

[whiteford]

Well done.

I'm sorry I missed that too.

For my understanding Guiseppe, does the native vlan play any role in this setup? I'm confused why it is required?

Also I want to draw this netork diagram for my documentation, do you know of a tool that can do this that's free?

Here is the info anyway that you wanted :)

Switch#sh int fas0/1 switchport

Name: Fa0/1

Switchport: Enabled

Administrative Mode: trunk

Operational Mode: trunk

Administrative Trunking Encapsulation: dot1q

Operational Trunking Encapsulation: dot1q

Negotiation of Trunking: On

Access Mode VLAN: 1 (default)

Trunking Native Mode VLAN: 1 (default)

Voice VLAN: none

Administrative private-vlan host-association: none

Administrative private-vlan mapping: none

Administrative private-vlan trunk native VLAN: none

Administrative private-vlan trunk encapsulation: dot1q

Administrative private-vlan trunk normal VLANs: none

Administrative private-vlan trunk private VLANs: none

Operational private-vlan: none

Trunking VLANs Enabled: ALL

Pruning VLANs Enabled: 2-1001

Capture Mode Disabled

Capture VLANs Allowed: ALL

Protected: false

Unknown unicast blocked: disabled

Unknown multicast blocked: disabled

Appliance trust: none

[whiteford]

Hi,

How would I now set this up so I can telnet to the switch from the users VLAN 10?

Thanks

[Giuseppe Larosa]

Hello Andy,

on the switch you just need to create an SVI for vlan 10

int vlan 10

ip address ....

no shut

the address must be in ip subnet associated to vlan 10.

Hope to help

Giuseppe

[whiteford]

Hi,

SVI, is this a sub vlan interface? So o I create this on the switch:

int vlan 10

ip address ....

no shut

Then on the router aswell or just the switch and does the switch need a gateway?

[Giuseppe Larosa]

Hello Andy,

only on the switch and then you are right you need to specify the router ip address in vlan 10 as the default-gateway for the switch

int vlan 10

ip address 192.168.2.x

no sh

where x stays for the last byte and is what you want among the free addresses.

ip default-gateway 192.168.2.1

Sorry for the missing info

Hope to help

Giuseppe