Private Network and Internet Connection

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knmkonexion Participant Join Date: Sep 2009 Posts: 4	Private Network and Internet Connection 09/14/2009 6:58 PM
	I am trying to route the internet to our private network. I have a Cisco switch (unmanaged) that is feeding clients. On that switch I have a server (2k3r2) and 10 clients. The private IP schema is 10.0.10.x I am trying to pipe in our internet, which is on the 192.168.2.x subnet, being routed by a small router. I cannot touch this router as our building uses the subnet this is pushing. I installed a secondary router feeding my Cisco switch. I tried routing the internet and private network but cannot connect to both at the same time. I considered using Windows NAT but do not want to use software, I prefer a hardware solution. When I point my DNS to the router it doesn't see the domain from our Win server, just the opposite when I point back to our domain DNS, can't see the internet. Any ideas?
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JohnDG Guru Join Date: May 2006 Location: Reading, Berkshire, UK. Going under cover. Posts: 9684 Good Answers: 468	#1 Re: Private network and internet 09/14/2009 7:16 PM
	Networking's black magic. Much as I'd like to help, you obviously know a helluva lot more than I about it. Hope someone else here can help. Good luck. __________________ "Love justice, you who rule the world" - Dante Alighieri
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knmkonexion Participant Join Date: Sep 2009 Posts: 4	#2 In reply to #1 Re: Private network and internet 09/14/2009 7:35 PM
	Thx for the feeback...it is indeed black magic, hopefully someone on here has dealt with this issue before???
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CraziestOzzy Power-User Join Date: Apr 2009 Location: Australia, sunny North Queensland Posts: 380 Good Answers: 12	#3 Re: Private network and internet 09/14/2009 9:15 PM
	I am totally unfamiliar with Cisco. What I do know is how to resolve networking issues at home using a single router and a multi-computer network. Your router you are using (type?) may be seeing the Cisco unit as traffic from the internet and thus blocking it through its own internal firewall. This would cause the router to be 'unseen' by the Cisco, regardless of any attempt by you to manipulate addresses. I would check permissions for the relationship between the Cisco and Router union networked to those computers. ...that is my uneducated thought. Another wild guess is for me to ask, if the Workgroup is the same for all units (Cisco/Router/Computers)? Without using software, hardware trouble shooting involves truly the "blackmagic" approach. __________________ CraziestOzzy
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bwire Guru Join Date: Dec 2007 Location: Upper Mid-west USA Posts: 7498 Good Answers: 97	#4 Re: Private network and internet 09/15/2009 1:23 AM
	Essentially craziestozzy has answered your question. If your require two routers rather than switches you'll need disable dynamic host configuration protocol (DHCP) for one of them effectively rendering it as a switch or the current trouble will persist. __________________ If death came with a warning there would be a whole lot less of it.
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knmkonexion Participant Join Date: Sep 2009 Posts: 4	#5 In reply to #4 Re: Private network and internet 09/15/2009 2:34 PM
	Great feedback, it is much appreciated. I did disable DHCP on my private-side router, the public side still has DHCP enabled. I am leaning towards the Cisco switch attempting to grab an IP from the DHCP enable router. Since I have not confog'd the switch yet, it is DHCP enabled by default...if that is the case, then I would be consistently kicked off the network, which hasn't happened??? I'll keep hacking away at this...it's definitely black magic.
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bwire Guru Join Date: Dec 2007 Location: Upper Mid-west USA Posts: 7498 Good Answers: 97	#6 In reply to #5 Re: Private network and internet 09/15/2009 2:47 PM
	I've discontinued use of D-Link due a lack of magic You're gonna need to magically manifest a power down of the public router. __________________ If death came with a warning there would be a whole lot less of it.
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knmkonexion Participant Join Date: Sep 2009 Posts: 4	#7 In reply to #6 Re: Private network and internet 09/15/2009 4:23 PM
	My private-side router is a D-Link, go figure! I am probably going to configure the Cisco switch to be on the same subnet as private, then create a Virtual port that is on the same subnet as the public side. This is my final straw, as I can not make our public router Static, our client machines on the public side are all dynamic, would be too much work. Thanks to all the gurus for your expert advice...great feedback as usual!
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bwire Guru Join Date: Dec 2007 Location: Upper Mid-west USA Posts: 7498 Good Answers: 97	#8 In reply to #7 Re: Private network and internet 09/16/2009 12:04 AM
	No UPS eh? Can't handle a 15 second power down? Oh well, D-link isn't VPN capable? I could recommend a replacement. Last straw, use connection from public to private LAN instead of WAN, forcing private to be a repeater?? __________________ If death came with a warning there would be a whole lot less of it.
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Chankley Power-User Join Date: Sep 2007 Location: South coast of England Posts: 411 Good Answers: 36	#9 Re: Private Network and Internet Connection 09/17/2009 5:05 AM
	I am not an expert on this but it seems to me that you are trying to mix class A addressing in the 10.0.0 series with class C addressing in the 192.168 series. this doesn't work. I don't think you can do both on the same private network. You need to decide which class you are going to use and re-address everything that doesn't match. See the Wikipedia article for an introduction to this. http://en.wikipedia.org/wiki/Private_network
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bwire Guru Join Date: Dec 2007 Location: Upper Mid-west USA Posts: 7498 Good Answers: 97	#10 Re: Private Network and Internet Connection 09/17/2009 12:24 PM
	You may accomplish with VPN capabilities. Your 2003 windows server has VPN capability built in however I don't know it will service you well. You need a dual VPN firewall/router, be sure to correct NIC issues check the CISCO documents. __________________ If death came with a warning there would be a whole lot less of it.
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