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RIP and OSPF re-release When the network is normal, the data is forced to go ISP1 , ping 100 remote network data to ISP1 Let's take a look at PE1 : PC can take the initiative to send RS to trigger router sends RA , without waiting for RA periodically sent before closing time to the RA . 2001::1 Exit-address-family Ipv6 nd other-config-flag STALE 1 when the area to which an interface belongs is NSSA . RIP re-releases the default route Then the configuration of R2 is as follows: 136 PE1 and PE2 activated between MPBGP neighbor relations, to pass VPNv6 ready prefix Ready to work Neighbor 4.4.4.4 send-community extended exit-address-family R Management distance problem Redistribute rip subnets tag 1111 Experimental example: Called when republishing Ipv6 address 2002:CA65:0C01::FFFF/64 R3 configuration is as follows Associate the static route of the next hop Image Image !! Interface activates IS-IS 25 The local site address will never be used to communicate with the global ipv6 Internet. Generally used for intranet communication. Of course, in fact, the IPv6 address space is so large that it is not necessary to use the Site-local address, and the global unicast address can be used directly. ! The allocated portion of the entire IPv6 space: Generally, it is 60-240 seconds longer than the invalid timer . If this time also expires, the routing entry is completely deleted. Cisco default 60s (note than invalidtimer multi- 60s ), RFC default 120s Ipv6 unicast-routing View the ipv6 address information of the network card , such as validity period, prefered lifetime, etc. ( ipconfig is also available) Complete MPLS Backbone of IGP and LDP Configuration Image In addition, if the command is configured when writing: VLSM support ! Image ! Ipv6 route 2002:CA65:C01::/48 Tunnel0 Neighbor 2.2.2.2 update-source Loopback0 Of course, this time 1.1.1.0 is unable to access 3.3.3.0 , because R3 does not have a route in the RIP routing domain (that is, there is a problem with the backhaul routing, data communication must always consider the round-trip path, remember), so if To achieve network-wide interworking, you need to be on R2 : Internal EIGRP It is delivered to the ISATAP host,ccna course in pune, enabling it to build its own IPv6 address. Ipv6 unicast-routing Route Tag 0400 – 05FF Image Netsh can be used to configure, manage, and reset the IPV4 V6 protocol stack. Allocation Interface FastEthernet0/0 After the above configuration is completed, the entire network route is passed. Tunnel tunnel Therefore, in the case of dual stack, when the PC DNS is parsed, the AAAA record is generally requested first . Situation 3 IPv6 interface address: This TLV contains an IPv6 interface address ( 128bits ). The decimal value assigned to the IPv6 interface address TLV is 232. For IS HELLO PDUs , this TLV must contain the Linklocal address, but for LSPs , the TLV must contain a non- Linklocal address. This technology is used less and is one of the first conversion mechanisms of the IETF . The automatic IPv4- compatible tunneling mechanism allows only IPv6 data between two dual-stack hosts to be automatically tunneled (without manual configuration) over the IPv4 network. This mechanism allows for isolated hosts and another on an IPv4 network 1/128 Therefore, from here we can see that the route summary is a risk of looping. One way to solve the above problem is to add a static route on the Layer 3 switch: ip route 192.168.0.0 255.255.0.0 null 0 , this way, when it receives access Advertised to update-groups: 1 The packet contains a maximum of 25 routing entries. As we R3 on the RIP routes injected into OSPF marked the Tag 1111 , then the next !! Call ipv6 local pool and set the lifetime Both ends are common IPv6 networks, using regular global IPv6 addresses. Image RFC1058 Image The GW configuration is as follows: Technical overview Associate the IPv6 network allowed by the ACL with this v6v4 address pool. As defined in RFC2462 , plug and play utilizes RS and RA messages. Passing the value of Tag 2 : Reponse message, send all or part of its routing information, a Response 6PE and 6VPE In an IP network, Routing is a very, very basic concept. The basic function of the network is to make two in the network Router ospf 100 Ipv6 unnumbered fast 0/0 tunnel source loopback0 tunnel mode ipv6ip 6to4 Router(config)#router rip Label associated with the VPNV6 prefix: Interface FastEthernet0/0 vrf forwarding cisco ipv6 enable Jul 20 2012 23:59 // Old prefix We see that the PC first generates an interface ID of 64 bits according to its locally configured IPv4 address: 1.1.1.1 : 696 Also pay attention to the sending conditions of ICMP redirects here . Also note, R3 this default route on if configured to associate an outgoing interface, then it can not be observed phenomena redirection, as to the reason, you know, proxy ARP thing. Image Image V2 defaults to send v2 to receive v2 R2#show ip bgp ipv6 unicast summary Tunnel mode ipv6ip Next Hop Configure all interfaces as passive and manually activate specific interfaces: The following are the addresses and ports that DHCPv6 might use: When one or more consecutive 16- bit fields are 0 , the ::: is available, but only one is allowed in the entire abbreviation: Holddown timer Ipv6 enable "Double-point bidirectional" routing re-release is a simple model that can often be used in large networks. For example, in a financial network, if a dynamic routing protocol is run between a secondary line and a branch router, then this model may be involved. The so-called two-point bidirectional refers to a node with two routes re-issued on the boundary of two routing domains, and the direction of re-distribution is bidirectional. For example, in the above figure, the secondary line has two aggregation routers for access to the following outlets or branch routers. Then the two routers are two-point. In addition, in order to make the routes of the entire network reachable, two-way routing re-distribution is deployed on the two routers, that is, OSPF is re-released to RIP , and RIP is also re-released to OSPF. .
Exam Code: 200-125
Certification Provider: Cisco
Certification Exam Name:CCNA Routing & Switching
Update Date: Dec 21,2024
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