Because there are two tunnel endpoints, there are two rules. The filters in each rule must represent the source and destination IP addresses in IP packets that are sent to that rule's tunnel endpoint. In the new policy properties, click to clear the Use Add Wizard check box, and then click Add to create a new rule.
Type an appropriate name for the filter list, click to clear the Use Add Wizard check box, and then click Add. Click the Protocol tab. Make sure that the protocol type is set to Any , because IPSec tunnels do not support protocol-specific or port-specific filters. If you want to type a description for your filter, click the Description tab. It is generally a good idea to give the filter the same name that you used for the filter list. The filter name appears in the IPSec monitor when the tunnel is active.
Click the IP Filter List tab, and then click to select the filter list that you created. Click the Tunnel Setting tab, click The tunnel endpoint is specified by this IP Address box, and then type 3rdextip where 3rdextip is the IP address that is assigned to the non-Microsoft gateway external network adapter.
Click the Filter Action tab, click to clear the Use Add Wizard check box, and then click Add to create a new filter action because the default actions allow incoming traffic in clear text. Keep the Negotiate security option enabled, and then click to clear the Accept unsecured communication, but always respond using IPSec check box. You must do this for secure operation. Note None of the check boxes at the bottom of the Filter Action dialog box are selected as an initial configuration for a filter action that applies to tunnel rules.
Only the Use session key perfect forward secrecy PFS check box is a valid setting for tunnels if the other end of the tunnel is also configured to use PFS. Click Add , and keep the Integrity and encryption option selected or you can select the Custom for expert users option if you want to define specific algorithms and session key lifetimes.
Click OK. Click the Authentication Methods tab, configure the authentication method that you want use preshared key for testing, and otherwise use certificates. Kerberos is technically possible if both ends of the tunnel are in trusted domains, and each trusted domain's IP address IP address of a domain controller is reachable on the network by both ends of the tunnel during IKE negotiation of the tunnel before it is established.
But this is rare. Any outbound traffic on the interface type that matches the filters tries to be tunneled to the tunnel endpoint that is specified in the rule. Inbound traffic that matches the filters is discarded because it must be received secured by an IPSec tunnel. Click the Filter Action tab, and then click to select the filter action that you created.
Click the Authentication Methods tab, and then configure the same method that you used in the first rule the same method must be used in both rules. Click OK , make sure both rules that you created are enabled in your policy, and then click OK again.
A green arrow appears in the folder icon next to your policy. To see the active filters, type the following command at a command prompt:. If you want to prevent traffic that does not have a source or destination address that matches NetA or NetB , create an output filter for the external interface in the Routing and Remote Access MMC so that the filter drops all traffic except packets from NetA to NetB. Also create an input filter so the filter drops all traffic except packets from NetB to NetA.
You do not have to specifically allow the IPSec protocol because it never reaches the IP packet filter layer. Click Outbound Filters , and then click New. You cannot add or remove certificate templates to the stand-alone CA. You must add the CA certificate to the Root Store manually. The stand-alone CA can receive limited support from the Active Directory when it is installed by a domain administrator in an Active Directory domain.
When the stand-alone CA is installed by a domain administrator , the CA certificate of the stand-alone CA will be added to the Trusted Root Certification Authorities certificate store for all domain users and computers. The machine can be a standalone server, a member server in an Active Directory domain, or even a domain controller: Click Start , point to Control Panel and click Add or Remove Programs.
Figure 1 fig On the Windows Components window, click on the Application Server entry and click the Details button figure 2. Figure 5 fig Click Next on the Windows Components dialog box figure 6. Figure 7 fig Installing Microsoft Certificate Services Perform the following steps to install and configure a stand-alone CA on a Windows Server computer: Note: We recommend that you install the stand-alone CA on a member server or domain controller on your internal network.
At a member server or domain controller in your internal network, log on as a domain administrator. Figure 8 fig In the Windows Components dialog box figure 9 , click on the Certificate Services entry and click the Details button. A Microsoft Certificate Services dialog box appears and informs you that you can not change the machine name or the domain membership of the machine while it acts as a certificate server. Read the information in the dialog box and click Yes.
Click OK in the Certificate Services dialog box. Figure 11 fig Click Next in the Windows Components dialog box figure Click Next. Accept this default value unless you have a reason to change it. You do not need to specify a shared folder to store configuration information because this information will be stored in the Active Directory. Figure 15 fig Click Yes on the Microsoft Certificate Services dialog box figure 16 informing you that Internet Information Services must be stopped temporarily.
Figure 18 fig Close the Add or Remove Programs window. Approving Certificate Requests to a Standalone Certificate Authority The stand-alone CA does not automatically issue a certificate when a certificate request is made.
Perform the following steps to obtain a certificate from the Windows Server standalone Certificate Authority via the Web enrollment site: Note : In this example we assume the VPN client computer is located on the internal network.
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Figure C The Figure D Choose an IP addressing mechanism. Figure E Create an address space for remote clients. Editor's Picks. The best programming languages to learn in Check for Log4j vulnerabilities with this simple-to-use script.
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