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Filter two RED interfaces through Proxy
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Topic: Filter two RED interfaces through Proxy (Read 21132 times)
Gavin
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Posts: 20
Filter two RED interfaces through Proxy
«
on:
Saturday 07 November 2009, 06:11:27 am »
Hey EFW Community!
I'm working on setting up a firewall with a single GREEN interface (192.168.0.1) and two RED interfaces which connect to two different ISP's. I'll call them ISP-A and ISP-B.
What I'm trying to do is have most of the staff use ISP-A for their connection. However, we have a select few that need a dedicated line. This is where ISP-B comes in. I've defined the MAC address of the selected computers to use ISP-B in the Network -> Routing -> Policy Routing area.
This works as expected. But, if I enable the Proxy service for content filtering, all traffic is forced through the "main" RED interface (ISP-A). If I disable Proxy, it again works as expected, the defined MAC addresses use ISP-B and everybody else goes through ISP-A.
My question is, how do I get the proxy to work with both RED interfaces? Its obvious that this is the problem, but I dont have much experience working with Squid or DansGuardian.
Any suggestions, links to resources etc. would be appreciated.
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Gavin
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Re: Filter two RED interfaces through Proxy
«
Reply #1 on:
Tuesday 10 November 2009, 05:49:19 am »
Anybody?
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npeterson
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Re: Filter two RED interfaces through Proxy
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Reply #2 on:
Tuesday 10 November 2009, 06:47:43 am »
You would need to define proxy access policys for the different users, then use a custom squid configuration defining the tcp_outgoing_address for the created ACL that matches your access policy.
http://www.squid-cache.org/Doc/config/tcp_outgoing_address/
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Gavin
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Re: Filter two RED interfaces through Proxy
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Reply #3 on:
Tuesday 10 November 2009, 07:02:01 am »
Thanks npeterson. I'll post back if I get this sorted.
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Gavin
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Re: Filter two RED interfaces through Proxy - SOLVED
«
Reply #4 on:
Wednesday 11 November 2009, 03:56:50 am »
What I ended up doing is splitting the services across the two ISPs instead of a workstation IP or MAC address.
For example, all users go through ISP-A for web-browsing, which is fed through the web proxy and content filter, and all high bandwidth traffic such as FTP are fed through ISP-B. Not only is this available in EFW without modification, but makes it quite easy to load balance traffic by simply defining routing policies.
Thanks again for your help.
Gavin
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yuthakarn
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Re: Filter two RED interfaces through Proxy
«
Reply #5 on:
Wednesday 13 January 2010, 08:07:54 pm »
Gavin, can you give me a hint to do this.
I tried but it's not success. If I turn on http proxy, the routing policies don't work.
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