D-Link DGS-6600-48TS Configuration Guide - Page 257

Volume 4-Layer 3 Configurations / Chapter 26-IPv6 Static Route Configuration IPv6 Static Route Configuration Commands IPv6 Static Route Configuration Commands Static Route with Specific Next Hop When the network prefixes and prefix-length are given with a next hop address on a specific interface for a static route, the system will forward the packets (destined for the configured network) to the next hop address on a specific interface. (The DGS-6600 supports vlan interface with next hop) In this case, the next hop address must be found on the specific interface, so that the designated static route could be registered in the routing table. The following example shows how to setup a static route on the DGS-6600: DGS6600>enable DGS6600#configure terminal DGS6600(config)#ipv6 route 2001:0DB8::/32 vlan 1 fe80::0200:00ff:fe00:a0a0 By using this configuration, system will forward the IPv6 traffic destined to the network of 2001:0DB8::/32 via the next hop fe80::0200:00ff:fe00:a0a0 on interface vlan 1. Note that, when the network prefix and prefix length are both zero, the specific static route presents default route in the DGS-6600 for IPv6. Floating Static Route When the network prefixes and prefix-length are given with a next hop address on a specific interface for a static route, the system will forward the packets (destined for the configured network) to the next hop address on a specific interface. If an administrative priority is also assigned, the static route may be competed with the same routes that come from other protocols. If the priority of the static route is higher than other ones, it will be active. If the priority of the static route is not higher than other ones, it act as the backup route of the others. In this case, the less number presents the higher priority. The following example shows how to setup a floating static route on the DGS 6600: DGS6600>enable DGS6600#configure terminal DGS6600(config)#ipv6 route 2001:0DB8::/32 vlan 1 fe80::0200:00ff:fe00:a0a0 distance 22 DGS6600(config)#ipv6 route 2001:0DB8::/32 vlan 2 fe80::0200:00ff:fe00:b0b0 distance 11 By using this configuration, system will check whether the route to the network of 2001:0DB8::/32 has more than one protocol sources. The system will choose the highest priority one(s) to register into the routing table with the corresponding next hop address. In this case, the static route via fe80::0200:00ff:fe00:b0b0 on vlan 2 will be the master one towards the destination 2001:0DB8::/32. Long Prefix Route Because of chip limitation, IPv6 routes with a prefix more than 64 bits cannot be set to H/W routing table by default. When user configure static route with long prefix, the route entry cannot be set to H/ W routing table. Use "ipv6 unicast-routing long-prefix" to support the IPv6 route with prefix longer than 64 bits can configure to FP table. After CMD enable, user can not add static route with long prefix when check FP table full. In the device, the long prefix route is not enabling. The follow flows are worked after long prefix route be enabled. The basic implement concept is check long prefix in HSL before route entry be added to DGS-6600 Configuration Guide 257