50 WAN interconnected LAN reference topologiesConfiguring tunnelsAfter the sites are configured, configure the branch and client tunnels asrequired by the site. See the figures "Branch tunnel configuration diagram"(page 50) and "Client tunnel configuration diagram" (page 51).Branch tunnel configuration diagramConfiguring a branch tunnelStep Action1 Start the Element Manager, and access the BSR222 Web page.2 In the Element Manager, Element Navigation Panel, click VPN toaccess the VPN page and click the Summary tab.3 From the Contivity VPN Client list, select an open item.4 Click Edit to access the VPN—Branch Office page.5 On the VPN—Branch Office pagea. Select Branch Office as the connection type.b. Select the Active check box and the Nailed Up check box.c. Type a name for the tunnel.d. Type the key that was previously shared and retype to confirm.ATTENTIONThis key must be identical at both ends of the tunnel.e. Type the secure gateway address for the far end of the tunnel.6 Click Add to save the settings and access the VPN—BranchOffice—IP Policy page.SMBSmall and Medium Business Solutions Overview and Configuration GuideNN47910-200 02.01 StandardRelease 1.00 11/22/2006Copyright © 2006, Nortel Networks Nortel Networks Confidential.