CCA Tech

Information on this page will be of a technical nature within the computer field that relates to Child welfare. We will attempt to cover the basics and advance into more detailed explanations so that everyone can understand and learn something. Please address comments, suggestions, things you would like to see on this page, and information you would like to add to this page,  to me at this email address,  [email protected] . You can also reach me with the programs/utilities at the bottom of the page 24/7.

TOC

  1. NAT Links
  2. SACWIS
  3. Terminology
  4. Your network and SACWIS
  5. Past Information
  6. Contact Information 
  7. SACWIS CCA Group

 

 
bullet

NAT Network Address Translation & SACWIS
bullet

For more information direct your specific questions to Stephen Bradshaw.

bulletDCFS had approved the use of NATs by private agency providers for use with the Statewide Automated Child Welfare Systems that is being developed. SACWIS
bulletDCFS has approved the use of NAT (network address translaters) for use on the POS side of the DCFS-provided router. DCFS can accept requests for reimbursement for the NAT as long as the agency has it in their plan. It may be possible to do the NAT function with a piece of software on on an agency's internal LAN, as opposed to hardware. The agencies will have to research this on their own, and, they will have to install and support whatever they use in the NAT area.

 

bulletNAT Links
bulletHow stuff works-NAT
bulletNAT IETF
bulletNAT Vicomsoft FAQ
bullet

SACWIS Technical Questions and Answers April 19, 2001

 

bulletSACWIS Links
bulletThis is SACWIS 
bulletHome Page
bulletSACWIS CCA Group
bulletCCA User group 
bulletMeetings
bulletInformation
bulletYahoo email list and web page

 

bulletSome terminology.
bulletNIC
bulletNetwork interface card (looks like modem but bigger) 
bulletHooks to a "patch cable" or "cat 5" cable.
bulletLAN/WAN Local area network/Wide area network
bulletLAN If your office has more then once computer, chances are you are connected to a LAN. Each computer in that LAN is its own little world.
bulletWAN If you are reading this from the internet you are accessing the WAN (the internet) It is a larger network of computers that is world wide.
bulletTerminal Services
bulletSoftware that delivers the Windows desktop and applications through terminal emulation
bulletIP Internet Protocol
bulletIs a unique 32-bit number that identifies the location of your computer on a on a LAN (Local area network) and/or WAN (Wide area network-the internet) It works like your street address. 
bullet66.100.112.145 is the IP for http://www.cca-il.org/ on the internet
bullet192.168.254.17 is the IP of my computer on the LAN
bulletIf you went into dos and typed in ping 66.100.112.145 you would send out a request to that IP and it would come back in ms how fast it responded (lower is better) If you typed in www.cca-il.org you would get the same results because it is the same address. 
bulletIf you went to dos and typed in ping 192.168.254.17 you may or may not get a ping because you are pinging your LAN not mine (unless of course you are on my LAN) 
bulletRouters/switches/hubs/bridges
bulletDevices that hook up LAN as well as WAN to each other and give them the ability to "see" each other.
bulletThe name gives you the clue on what they do, Routers rout your IP to the proper place, Switches will switch you to the proper place, hubs connect multiple LANs. And bridges bridge the gap between separate domains. 
bulletProtocol's for your IP's
bulletDHCP IP-Dynamic Host Configuration Protocol
bulletThe server automatically assigns your computer an IP. 
bulletStatic IP
bulletIP stays the same all the time, Network printers normally have a static IP. 
bulletWays to get and send data
bulletModem 56k slow
bulletISDN better
bulletDSL/Cable "modems" fast
bulletT1 line very fast (your internet provider uses T1 lines)

 

bulletYour network and SACWIS (I have not used or set up this, so consider this my "best guess")
bulletVisual PDF of Basic network setup.
bulletSACWIS function
bulletAgency's ability to access SACWIS (the agency-wide database) from their computers and add to or edit the information
bulletTechnical information
bulletSACWIS will be hooked to your agency via a T1 line and router, however think of it as a separate LAN not as the internet. 
bulletYou will access SACWIS using a front end called terminal services
bulletThe operating system will be Windows 2000
bulletThis router is not a NAT translator
bulletProblems
bullet If your LAN uses DHCP (most do) SACWIS needs a static IP. 
bulletSome solutions
bullettwo NIC
bulletTwo NIC on one computer will create a type of router. 
bulletI had a LAN at home and a Cable Modem for the internet, only one computer could hook to the internet. 
bulletBy taking one computer and putting in two NIC that computer routed or merged the LAN and WAN (with built in software in windows XP)  in other words two separate IP's  on two NIC
bulletWith SACWIS it would work as one computer in your office would be on the LAN and that other NIC would let it also be on SACWIS, however due to the way that computer hooks to SACWIS (terminal services) other computers on your LAN would not be on SACWIS.
bulletYou should be able to set the LAN NIC to DHCP and the SACWIS NIC to static IP (unconfirmed) 
bulletChanging your entire network to static IP
bulletNot recommended
bulletMultiple addresses to one NIC
bulletMultiple addresses to one NIC require a static route.
bulletDefault address should be used to connect to the terminal server
bulletOnce terminal service is in place and functional, additional connect schemas may be tested
bulletThis will most likely solve a lot of problems for all so please let me know to add any information that may help others.  

 

 
bulletPast information
bulletTech Journal January 2002
bulletTech Journal February 2002

 

 

bulletContact Information  

ICQ 163991452

Wolf216 163991452


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