Recommended settings for an adsl connection

[Romany]

I have to create a new internet and network connection at some of my clients place. I am not sure about the network here. There can be one or more PC. Here I only knows that I have to setup a broadband internet connection i.e. adsl connection to than work on PC. So before implementing anything I will prefer to get tips about creating a secure adsl connection. What are the settings for that.

[Shen]

If you are preliminary out with new hardware, I would suggest one of the subsequent setups when integrating your Firewall. The modem topology is superior to with routers, in view of the detail that the arrangement is easier and it is cheaper to purchase a modem than an ADSL router. Make a note of that the modem have to be exterior and not an interior card in a PC.

[Steve123]

Let’s assume that you have a sing pc connects. Then your network topology determines to be Phone to ADSL to Firewall to internal PC. This can be a fundamental map of your network correlation. It is safer and you have fortification it. If you have a diminutive network of up to 4 PCs are being secluded then it can be Phone to ADSL too Firewall to Hub to Internal PCs.

[Antonio1]

The fundamental sanctuary principle of most firewalls and routers is that departing traffic is permitted (Lan to Wan policy), but inward from the public network is blocked (Wan to LAN policy). Rules can be modified to permit unambiguous incoming services (none by evasion), and limit unambiguous outgoing services. In view of the detail that routers can permit a number of machines to right of entry the Internet and all outgoing traffic leaves with the IP address of the router, incoming traffic is deprived of by evasion, for the reason that the router does not recognize which internal host to send it to.

[Milton.J]

Modems on the additional hand, be inclined to generate a completely open correlation in mutually directions by evasion. So do not utilize a modem without a firewall. On routers, for inward traffic to be permitted, SUA (single user address) servers necessitate to be defined. SUA hides the actual address of servers behind one published address (this is also recognized as Network Address Translation - NAT or masquerading).

[Spyrus]

In the SUA either a 'default or evasion server' is defined, or a register of which ports are routed to which IP address is specific or particular. So, if you do not arrange several SUA on your router, inward traffic is blocked by evasion. This might be sufficient for a good number of users. Some routers also present firewall functions that might be used to constrict sanctuary auxiliary.