RRAS and DHCP help

[ric949396]

Hi guys,

Interesting issue I have so maybe someone here has an idea. Basically what I need to do is have RRAS clients coming into my RRAS servers to be able to grab one DHCP pool over another. I have a dual WAN firewall with two ISP lines coming into my environment. Each ISP line has its own RRAS server so for example if VPN 1 dies, users work via VPN 2.

So, does anyone know how to tell one RRAS server to grab DHCP addresses from one pool over another? I want VPN 1 to grab from one pool, and VPN 2 another but right now I can’t figure a way. Any ideas??

 

[TechyMcSe2k]

http://technet.microsoft.com/en-us/library/cc773765.aspx

Maybe a DHCP relay? Maybe run DHCP on each of the RRAS servers and specify that gateway (scope options) so it will only hand out ips for users coming in on that VPN. The VPN concentrators/firewalls could possibly include a command to specify whcih DHCP server to look at as well.

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[ITPangaeaArchitect]

or you can just exclude a range of IPs from the scope and add it in RRAS as a pool of IPs to assign to incoming clients as well...at least as a simple method

- Brandon Wilson
MCSE:Security00/03; MCSA:Security03
MCSA:Messaging00; MCP; A+
IT Pangaea (

http://it-pangaea.com)

 

[ric949396]

Yes but.. That won’t solve the problem. The issue is that any client coming in off my VPN 2 ISP has no internet and no msn messenger. This is because when traffic goes to route out of the environment it cannot resolve as the DNS default in the firewall is my VPN 1 IP. I need to somehow separate the traffic going out of the environment based on how it came in, over Optimum (VPN 1) or Verizon (VPN 2) and wanted to do this via DHCP pool. But until i can tell RRAS to look at one DHCP pool over another im stuck.. :-(.

 

[TechyMcSe2k]

I would post your question here:
VPN Forum

http://www.tek-tips.com/threadminder.cfm?pid=463

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Great knowledge can be obtained by mastering the Google algorithm.