Not able to connect mongodb from host machine

I am not able to connect to MongoDB using below command-

mongo --host 192.168.42.100

Try

vagrant ssh
mongo

Many reasons might prevent you to be able to do it the way you try to do it. The ssh way is the recommended way.

Thanks
Earlier, I was able to connect mongoDB in the guest machine.

Now I am able to connect from host machine using below command.
mongo --host localhost:27017