network folder

hi,
  I have 3 pcs in one office.  2 are connected to a network 10.0.100.235 behind a sonic wall and 1 is connected to the network before sonic wall 10.0.1.1
the 2 behind the wall can talk and share fine but they cant share with the one before the wall :-(
the one pc before the wall has a printer connected via usb that id like to share with the other two.  is this possible?
I would also like to set up a shared folder that all three can access at same time.  can this be done (ie google drive or dropbox etc)
thank you :-)
StewartGilliganAsked:
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StewartGilliganAuthor Commented:
I was thinking of installing google drive on all three pc's.  since all 5 users on the pc before the sonicwall can use the folder called "shared documents", I thought I would drag that into the google drive.  next on the pcs after the sonic wall, I would install the google drive and make a desktop shortcut from the shared documents folder in the drive.  hmmmmmm...  thoughts?
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convergintCommented:
You can definitely use something like Google Drive for sharing.  We use a great product called Egnyte that does enterprise file sharing.

As for the firewall issue, the firewall is doing exactly what it is meant to do and block connections between devices in front and behind.  You need to setup a VPN connection between the PC outside the Sonicwall to the Sonicwall itself before you can get full communications between all the devices.

However, since they are all in one office, why are you unable to connect the one outside the firewall to be behind the Sonicwall network 10.0.100.235?
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StewartGilliganAuthor Commented:
they are both behind the same sonic wall it appears.  
two were given a gateway of 10.0.100.235 and ips of 10.0.100.100 and 10.0.100.101.  
the one I thought was before the wall was given a gateway of 10.0.1.1 with an ip of 10.0.1.5
what do I need to do to let all three share?  thanks and sorry for confusion
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StewartGilliganAuthor Commented:
help me please (see above)  :-(.  
also, if I plug a printer into this sonic wall will all pcs (10.0.100.100 &101 as well as 10.0.1.5) be able to use it?
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StewartGilliganAuthor Commented:
I have made this way too confusing.  going to repost.  sorry
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StewartGilliganAuthor Commented:
I made it way too confusing.  going to repost
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