LAN---Core Switch----Firewall---Internet router -----ISP
I want to know how users can go to internet by proxy server??? i have setup a LAN and Internet firewall with a natting for the internal users.Windows team has ISA server (proxy server) ,located in inside network, client workstation has specified a proxy server IP address in internet explorer browser, tools options.
what my understanding is when a users type's a yahoo.com in a browser,the browser looks for the proxy server ip address,the packet comes to default gateway (core switch SVI vlan interface) from there it routes to proxy server address.Proxy server do the lookup and forwards to its default gateway (again core switch SVI) from core switch default route to firewall and the packet is natted and sent out to internet router and so on to the ISP.
Can anybody explain me why the packets are not going to internet.what i m missing.