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training:sanog32:d-6rd [2018/07/26 15:57] – [Testing] philiptraining:sanog32:d-6rd [2018/08/05 19:56] (current) – [Disabling IPv6 on the Core and Access routers] philip
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 We also need to remove any IPv6 configured on the network as we will be replacing it with 6rd technology. The following subsections describe what needs to be done. We also need to remove any IPv6 configured on the network as we will be replacing it with 6rd technology. The following subsections describe what needs to be done.
  
-==== Disabling IPv6 on the core router ====+==== Disabling IPv6 on the Core and Access routers ====
  
 The first step is to disable IPv6 on the Access and Core routers. Be sure to keep a copy of the configuration of the Access and Core routers first! (We won’t worry about the Peering Router as it isn’t needed for this part of the lab work.) The first step is to disable IPv6 on the Access and Core routers. Be sure to keep a copy of the configuration of the Access and Core routers first! (We won’t worry about the Peering Router as it isn’t needed for this part of the lab work.)
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 And confirm that IPv6 routing no longer works - you should no longer have any IPv6 connectivity between the Border, Peering and Access routers. And confirm that IPv6 routing no longer works - you should no longer have any IPv6 connectivity between the Border, Peering and Access routers.
 +
 +==== Originating IPv6 Aggregate on the Border router ====
 +
 +Because we have removed IPv6 routing from the Core router, we have also stopped announcing our IPv6 aggregate to the Transit network. To test that our 6rd deployment is working, we need to temporarily originate our IPv6 aggregate from the Border router. Here is an example:
 +
 +  router bgp X0
 +   address-family ipv6
 +    network 2001:DB8:X::/48
 +  !
 +  ipv6 route 2001:DB8:X::/48 Null0
 +
 +
  
 ==== Removing IPv6 on the link to the Customer ==== ==== Removing IPv6 on the link to the Customer ====
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 What we will set up is something similar to the diagram below. What we will set up is something similar to the diagram below.
  
-![](diagrams/6rd-diagram.png)+{{:training:sanog32:6rd-diagram.png?600|}}
  
 The Customer Router in the diagram is our Customer Router in our network. And the ISP 6rd BR capability will be configured on our autonomous system’s Border Router. The Customer Router in the diagram is our Customer Router in our network. And the ISP 6rd BR capability will be configured on our autonomous system’s Border Router.
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   interface Loopback0   interface Loopback0
    description Customer Router Loopback    description Customer Router Loopback
-   ipv6 address PDLAB ::2:0:0:0:1/64+   ipv6 address 6RDLAB ::2:0:0:0:1/64
    no shutdown    no shutdown
   !   !
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 ===== Configuring the Access Router ===== ===== Configuring the Access Router =====
  
-The point-to-point link address from the network operator to the customer is normally not carried in the IGP or eve in the BGP. However, 6rd uses the point-to-point link address as the basis for the IPv6 prefix generated for 6rd. So the network operator needs to carry the point-to-point link address at least as far as the 6BR router so that the IPv6 tunnel can see its end point on the customer router.+The point-to-point link address from the network operator to the customer is normally not carried in the IGP or even in the BGP. However, 6rd uses the point-to-point link address as the basis for the IPv6 prefix generated for 6rd. So the network operator needs to carry the point-to-point link address at least as far as the 6BR router so that the IPv6 tunnel can see its end point on the customer router.
  
 The simple and scalable way to do this is to put the point-to-point link address into iBGP on the Access Router. Like this: The simple and scalable way to do this is to put the point-to-point link address into iBGP on the Access Router. Like this:
training/sanog32/d-6rd.1532584640.txt.gz · Last modified: 2018/07/26 15:57 by philip