hola, router to switch connection

[chr6is000]

                   ok, so i have my router and made subinterfaces

int e0/0

no ip address

no shutdown

int e0/0.1

encapsulation dot1q 1

ip address 10.10.10.17 255.255.255.240

               and i set my switch up with this

config t

int vlan 1

ip address 10.10.10.18 255.255.255.240

no shut

               made the 1st port a trunk

int fa0/1

switchport mode trunk

               then made my 2nd port like the access

int fa0/2

switchport mode access

switchport access vlan 1

switchport port-security mac-address sticky

switchport port-security maximum 1

switchport port-security violation shutdown

ready for the question? i can ping my computer of 10.10.10.19, but why cant i ping my default gateway of 10.10.10.17.

im not sure but is it because the router is ethernet and switch is fast. does the router not support vlan(sub-int).

it let me set-up the sub-interfaces for vlan 1, but maybe the port does not support it, 2600 router and 2950 switch.

thanks,

chris

[cadet alain]

Hi,

just add the keyword native at the end of your encapsulation command on the router subinterface and let us know if it works.

Regards

Alain

Don't forget to rate helpful posts.

[chr6is000]

no that did not seem to help

any other ideas, did i miss anything while setting up?

[johnlloyd_13 · Accepted solution]

Hi,

Could you try:

- shut/no shut the ports on both devices
- issue clear ip arp
- use another VLAN
- check PC TCP/IP setting and personal FW



Sent from Cisco Technical Support iPhone App

[chr6is000]

eureka, ima genious.........

i wish, lol

thanks floyd, i made a vlan 2 and it let me ping and telnet to the router. it would not let me in the administrative vlan 1 for some reason. if you know why ill wait for an explianation.

ill mark you as the best answer, thanks

[johnlloyd_13]

hi chris,

i'm glad your issue is resovled. your setup should work flawlessly but i suspect it might be due to the fact your running "legacy" equipment (i.e ethernet on 2600) and doesn't support native VLAN (VLAN 1).

best practice is that VLAN 1 should not be used for anything.

[chr6is000]

thanks im studying for my ccna, legacy is all i have for now. thaks for your reply

[Peter Paluch]

Chris, John,

You may be interested to know that the 2610 and 2611 series routers with Ethernet (i.e. 10Mbps) interfaces do not support configuring a subinterface for the native VLAN. This appears to be a limitation of the Ethernet controller in these routers. If you want to use the native VLAN, you must configure the physical interface directly. Subinterfaces for all other VLANs work just fine but instead of configuring a subinterface for the native VLAN, configure the Ethernet0/0 interface directly instead.

FastEthernet-based routers like 2620, 2621, the 2600XM series etc. do not have this limitation anymore.

Best regards,

Peter

[johnlloyd_13]

hi peter,

this is a cool fact! thanks for educating us. +5 sir!

[Peter Paluch]

Hi John,

It is a pleasure and an honor. Thank you!

Best regards,

Peter