Backup Exec - Server in another domain

Yes - you just need to install the remote agent on the other server. They need to be on the same IP range and subnet though. Establish trust between the servers and ideally use the same credentials.

https://www.veritas.com/support/en_US/article.TECH125617

https://www.veritas.com/support/en_US/article.000075481

Thanks for the nice links.
The remote server is on a complete different subnet.

ok I see and the network is ok and I use all networks.
But what do you think, do I need a domain trust ?

I would think that yes you need Trust established. That way you should be able to use the Domain account you use for Backup Exec on server 1 Domain 1 into the Domain Admins Group on the other Server 2 Domain2.

Article here which may help:

http://itshi-tech.blogspot.com/2012/12/backup-exec-cannot-connect-to-remote.html

I can ping the backup server but cannot create the agent to connect.
All services are allowed.

I think without a trust it is not working.

I can reach the vcenter of the other domain, but the backup is not possible.
Through the firewall all ports allowed.

But a backup of one VM fails always.

When I check the credentials I cannot connect to the VM with windows credentials but I entered the correct once for this machine. maybe its not possible without domain trust.

right ?

I believe you need trust yes

ok thanks a lot.

Thanks it works.