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Internal Traffic via Firewall

I have one internal network cloud.OSPF is configured in the same.My external traffic goes via Firewall.But I want to do all internal traffic passed via Firewall Only.Because If internal users can put any threating tool and traffic would not go via firewall.Then it will create a problem,

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Re: Internal Traffic via Firewall

You have to do natting and use access list .Here is nat command and the access list in case you need them

ip nat inside source list 120 interface Serial0 overload

access-list 120 permit ip 192.168.a.a 0.0.0.255 any

For more information please click following URL:

http://www.cisco.com/en/US/docs/ios/12_0/security/configuration/guide/scfirewl.html

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