How to configure multiple Vlan in single domain and in multiple sites


We have in process to setup our new office. Right now we have one site which having one domain i.e test.lan in default site. Now we created another member domain server in our new office in a new site i.e. site2. In Site2, we have created 3 different VLans. Both office having different IP subnets which i have configured in AD sites and services. But some users from site 2 are still logging on to default site. So they cannnot authenticate local firewall and which will create the internet  issues.

Is it required to add multiple subnet for multiple Vlans in a single sites? Because i m facing this issue with only VLan2 and 3, not with Vlan1.

Please help.

syinfraSenior Deputy ManagerAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Mohammed KhawajaManager - Infrastructure:  Information TechnologyCommented:
Ensure each site has a DC which is also GC.   Ensure you have assigned the respective IP subsets for each site to the correct ones.
DrDave242Senior Support EngineerCommented:
Is it required to add multiple subnet for multiple Vlans in a single sites?
Yes, if you have multiple VLANs at a site and there are multiple IP subnets associated with those VLANs, you'll need to create the corresponding subnet objects in AD Sites and Services and bind them to the site. Otherwise, machines on those subnets have no way to tell which DCs they should use for authentication, so they'll often use a DC at another site.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.