Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Question about Vlan connection in Layer 2 switch

Posted on 2014-03-03
7
Medium Priority
?
551 Views
Last Modified: 2014-03-03
Any expert can explain the vlan routing to me?

Here is topology: PC3 ------ SW1-----PC5. The switch (SW1) is layer 2 switch which connect PC3 and PC5, which are assigned to two vlan, vlan 13 and vlan 15, respectively. At SW1, I created SVI and configured vlan 13 and vlan 15, which are assigned to the SW1 port. The question is that PC3 and PC5 are in different vlan in the Layer 2 switch, why the two PC can ping each other ? Thank you.
0
Comment
Question by:EESky
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 3
7 Comments
 
LVL 26

Expert Comment

by:Soulja
ID: 39900966
At SW1, I created SVI and configured vlan 13 and vlan 15, which are assigned to the SW1 port.

Can you better explain this part. You lost me here. If you have each computer is assigned to a different vlan, they should not be able to ping each other.

Can you post the switch config?
0
 

Author Comment

by:EESky
ID: 39900997
Thank you for your fast reply

Here is some brief config:

SW1#show run

interface FastEthernet0/3
 switchport access vlan 30
 no ip address
!
interface FastEthernet0/5
 switchport access vlan 50
 no ip address
!
interface Vlan30
 ip address 13.0.0.1 255.255.255.0
!
interface Vlan50
 ip address 15.0.0.1 255.255.255.0
!



SW1#sh ip int bri
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0/0            unassigned      YES unset  administratively down down    
FastEthernet0/1            unassigned      YES unset  administratively down down    
FastEthernet0/2            unassigned      YES unset  administratively down down    
FastEthernet0/3            unassigned      YES unset  up                    up      
FastEthernet0/4            unassigned      YES unset  administratively down down    
FastEthernet0/5            unassigned      YES unset  up                    up      
Vlan30                     13.0.0.1        YES manual up                    up      
Vlan50                     15.0.0.1        YES manual up                    up    



PC1 and PC2 default gateway is 13.0.0.1 and 15.0.0.1 respectively
0
 
LVL 26

Accepted Solution

by:
Soulja earned 2000 total points
ID: 39901134
Which model switch is this? Are you sure it's in layer 2 mode only.

Enter sh ip route to confirm.
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 

Author Comment

by:EESky
ID: 39901143
SW1#sh ip route

Gateway of last resort is not set

     13.0.0.0/24 is subnetted, 1 subnets
C       13.0.0.0 is directly connected, Vlan30
     15.0.0.0/24 is subnetted, 1 subnets
C       15.0.0.0 is directly connected, Vlan50

I think this is a reason


Thank you
0
 
LVL 26

Expert Comment

by:Soulja
ID: 39901156
Yep, it's in layer 3 mode.
0
 
LVL 26

Expert Comment

by:Soulja
ID: 39901161
You probably already know, but just in case:

no ip routing


to disable layer 3 mode.
0
 

Author Comment

by:EESky
ID: 39901167
Thank you !
0

Featured Post

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In the hope of saving someone else's sanity... About a year ago we bought a Cisco 1921 router with two ADSL/VDSL EHWIC cards to load balance local network traffic over the two broadband lines we have, but we couldn't get the routing to work consi…
Shadow IT is coming out of the shadows as more businesses are choosing cloud-based applications. It is now a multi-cloud world for most organizations. Simultaneously, most businesses have yet to consolidate with one cloud provider or define an offic…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Suggested Courses

636 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question