Dell PowerConnect 6248 User's Guide - Page 598

Tunnels Configuration Use the Tunnels Configuration page to create, configure, or delete a tunnel. To display the page, click Routing →Tunnels →Configuration in the tree view. Figure 9-52. Tunnels Configuration The Tunnels Configuration page contains the following fields: • Tunnel - Use the drop-down menu to select from the list of currently configured tunnel IDs. Create is also a valid choice if the maximum number of tunnel interfaces has not been created. • Tunnel ID - When Create is chosen from the tunnel selector this list of available tunnel IDs becomes visible. You must select a tunnel ID to associate with the new tunnel and click Apply Changes before the remaining fields on the page display. • Mode - Selector for the Tunnel mode, which can be one of the following: - 6-in-4-configured - The 6in4 tunnel mode is configured rather than automatic. - 6-to-4 - 6to4 tunnels are automatically formed IPv4 tunnels carrying IPv6 traffic. The automatic tunnel's IPv4 destination address is derived from the 6to4 IPv6 address of the tunnel's nexthop. The switch supports the functionality of a 6to4 border router that connects a 6to4 site to a 6to4 domain. It sends/receives tunneled traffic from routers in a 6to4 domain that includes other 6to4 border routers and 6to4 relay routers. • Link Local Only Mode - Enable IPv6 on this interface using the Link Local address. This option is only configurable prior to specifying an explicit IPv6 address. • IPv6 Address -Select an IPv6 address for the selected Tunnel interface. Add is also a valid choice if the maximum number of addresses has not been configured. • IPv6 Address - When Add is chosen from the IPv6 Address drop-down menu, this IPv6 address input field becomes visible. The Address must be entered in the format prefix/length. You also have the option to specify the 64-bit extended unique identifier (EUI-64). • IPv6 Prefix Length - Specify the IPv6 prefix length. 598 Configuring Routing