VLAN Routing  Cisco 6509E Switch

Posted on 2014-09-08
Last Modified: 2014-09-25
I have a Cisco router and a 6509E switch.  I do not have access to the router but do have access to the switch.  The vendor tells me that on the switch he has setup primary IP and secondary IPs on his interface. On my switch I am doing dot1q VLANS.  At this point the only VLAN that can pass traffic to their router is the default VLAN.  Any of the other VLANs will not pass any traffic to the router.  I am at a loss as to what I am missing.  InterVLAN routing on my network is working fine but I cannot see any of the gateway addresses i.e.: secondary IPs on their router.  Any help will be greatly appreciated!
Question by:DaveKall42
  • 2
  • 2
LVL 18

Expert Comment

ID: 40310670
Routes must exist between the two networks. My guess is the vendor created a route that includes your other networks. Unfortunately, you will need to configure your router to include a route to their network also.
LVL 11

Expert Comment

ID: 40310692
Simple question: is the router configured to support your VLANs (either via subinterfaces or physicals interfaces)?

Accepted Solution

DaveKall42 earned 0 total points
ID: 40310701
No, they are not passing dot1q traffic on the router. Makes sense why its not working. Basically I had to configure a secondary IP on my default vlan and now it all works.  I was hoping to have more control over my traffic with vlaning but I guess that isn't work to work.  The vendor is the WAN provider. Actually they are a govt entity so I don't have much wiggle room with them.
LVL 18

Expert Comment

ID: 40334825
Glad to know everything works now

All the best

Author Closing Comment

ID: 40343525
Figured out answer to issue on my own.  Basically came down to remote router not passing dot1q VLAN tagging.

Featured Post

Highfive Gives IT Their Time Back

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

Join & Write a Comment

Suggested Solutions

Title # Comments Views Activity
Cisco C3750X Switch 19 75
Command "logging persistent size .... " 6 28
how to access my server 9 28
traffic flow without STP 9 13
There are times where you would like to have access to information that is only available from a different network. This network could be down the hall, or across country. If each of the network sites have access to the internet, you can create a ne…
Hello to you all, I hear of many people congratulate AWS (Amazon Web Services) on how easy it is to spin up and create new EC2 (Elastic Compute Cloud) instances, but then fail and struggle to connect to them using simple tools such as SSH (Secure…
After creating this article (, 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 (, 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…

762 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

Need Help in Real-Time?

Connect with top rated Experts

18 Experts available now in Live!

Get 1:1 Help Now