which is the best ccna dumps

which is the best ccna dumps

Image In the figure above, we started the re-release action on R2 . We "inject" the OSPF route into the RIP process, so that The GRE tunnel is a well-known standard tunneling technology that guarantees a stable and secure end-to-end link. Update timer update timer Route Distinguisher: 1:1 (cisco) Router(config-rtr)# port x multicast-group X:X:X:X::X Adjust the parameters of the prefix announcement Neighbor 2023::3 activate ! 8 8 8 8 Manual tunneling technology: manual IPv6 over IP tunnel, GRE tunnel Redistribute connected level-1 exit-address-family R2 entries ( 2033 :: 3 is R3 is Loopback0 port IP address): BGP table version is 1, local router ID is 1.1.1.1 For example, in this example,which is the best ccna dumps, we want to inject, the metrics of the two routes 192.168.1.0 and 192.168.2.0 become 2 hops, and 3.0 becomes Image Y If this command is configured, the host needs to use dhcp to configure other information besides the ipv6 address, such as DNS , domain name or something. !! core in the IGP !! Construct an Ipv6 address using the EUI64 address; Redirect message Use " ipv6 neighbor ipv6 address interface number mac address" to add a static entry to the neighbor discovery table, for example: Ip route 10.1.12.0 255.255.255.0 10.1.1.2 Source starts to send IPv6 packets using MTU=1300 , and the packets reach the destination smoothly. Network 2.2.2.2 0.0.0.0 area 0 In this way, the entire network is interconnected. Note that when redistributing routes to OSPF , redistribute rip subnets , this subnets Ip route 10.1.12.0 255.255.255.0 10.1.1.2 Route-map defaults to permit , the default serial number is 10 , the serial number is not automatically incremented, and the serial number needs to be specified. 1/128 Image The configuration of R3 is as follows: R2(config)# access-list 1 deny 192.168.3.0 R2(config)# access-list 1 permit any R2(config)# router rip !! Ping link local address and site local address may need to add index number, ping global unicast The configuration of PE2 is as follows: LocPrf Set tag 20 mechanism The R3 routing table is OSPF 's B segment route, then this B network route will be re-released back to the RIP domain, and ultimately to update In the authentication section, the authentication method defined in OSPFv2 is not used . Instead, use AH and ESP to extend the header as a security mechanism. Configure RIP unicast updates: Ip route 1.1.1.0 255.255.255.0 serial 0/0 Disadvantages: Each device needs to be configured with two protocols, which need to occupy resources. The device needs to store two routing tables (if it is a router), and each protocol needs to be processed independently. ICMPv6 ( RFC2463 ) ! Support follow RFC 's NBMA on-multipoint topologies and modes of OSPV3 operation. OSPFv3 also supports other CISCO modes, such as point-to-point, etc. !! 4.4.4.4 is also PE2 R1(config-if)#ipv6 nd prefix 2001::/64 ? R2#show ipv6 interface f1/0 FastEthernet1/0 is up, line protocol is up Ip address 202.101.12.1 255.255.255.0 Experimental needs Ip route 10.1.12.0 255.255.255.0 10.1.1.2 Set metric sets the metric of the routing protocol Configure RIP unicast updates: BGP table version is 5, local router ID is 2.2.2.2 To prove this again, we are on PE1 : Match ip address 1 Ipv6 unicast-routing interface Serial0/0 encapsulation frame-relay Image The MPBGP neighbor relationship is activated between PE1 and PE2 to prepare for the delivery of IPv6 routes. Se0/1 B removes the IPv4 header of the packet , obtains the original IPv6 data, and forwards it to PC2 . Interface Image Incoming interface: Loopback0 The configuration of CE1 is as follows: Image Provides information about the existence and lifetime of the default router IPv6 address. In IPv6 , the default router address used by the node is the linklocal address of the router , so that even if the prefix is readdressed , the default gateway is reachable ( linklocal) The MPBGP neighbor relationship is activated between PE1 and PE2 to prepare for the delivery of IPv6 routes. R4#sh ip ro 192.168.1.0 BGP Network 10.1.23.2 0.0.0.0 area 0 BGP table version is 5, local router ID is 2.2.2.2 [Start fast exchange] The router uses the ICMPv6 redirect message ( ICMP TYPE 137 ) to inform the nodes on the link that there is a better router for forwarding packets on the link. The node that receives this ICMPv6 redirect message can modify its local routing table based on the new router address in the redirect message. Basically up from the mechanism with IPv4 in ICMP redirect no different. This flag is also related to stateful autoconfiguration. When it is not set (by default), nodes should not use stateful autoconfiguration mechanisms to configure parameters other than IPv6 addresses. At another point, R2 will take 10.0.0.0 , 11.0.0.0 (the network segment where the secondary address is located), and 1.0.0.0 and 3.3.3.0 from their own loopback. Interface Loopback0 Ip address 10.1.23.2 255.255.255.0 Router#show ip route Ipv6 address 2001::1/64 The configuration of R3 is as follows: Prefix readdressing This is a simple method of data offloading and path redundancy using the longest matching principle. Ipv6 address 2001::1/64 16 bits R The command distribute-list out works only on the routes being redistributed by the Autonomous System Boundary Routers (ASBRs) into OSPF. It can be applied to external type 2 and external type 1 routes, but not to intra-area and interarea routes. ! BGP Show vrf ipv6 detail view vrf details ! 3 ! Ipv nd prefix default ? EIGRP 's passive-interface neither sends nor receives routing updates, nor does it send HELLO packets. Experiment 3 Ipv6 nd prefix 2001:0002::/64 Requested node multicast address corresponding to each unicast and anycast address used ::FFFF:4.4.4.4 (metric 3) from 4.4.4.4 (4.4.4.4) EIGRP , BGP and other dynamic routes learned. The above is the address that the host node must have. The router is different. The following addresses are added: All routers have multicast addresses: FF01::2 ; FF02::2 ; FF05::2 Ipv6 enable Do not advertise prefix 11 Image Nexthop 10.1.23.3 FastEthernet0/1 label 301 403 Router ospf 100 Route redirection Test phenomenon: can ping through R4.00-00 Image FastEthernet1/0 [Test 4 ] 192.168.1.0 declares that it has entered RIP , and R3 and R4 can learn this route and load it into its own global routing table. Then if we are at But you need to pay special attention to the reachability of next-hop . Set as-path set community The problem that the static route associated with the outgoing interface is re-released. Environmental description Distribute-list 1 out rip Solution: Modify the routing protocol management distance 1 !! If you add the default keyword, it will add a default on the interface that gets the address. Image Protocol ID: 0x86DD RFC1723 RPF nbr: FE80::CE02:1BFF:FE54:0 technical background Situation 3 Image Configure OSPF unicast updates: 1/1024 Ip prefix-list ABC seq 5 permit 172.0.0.0/8 Experimental needs BGP based policy accounting on input is disabled BGP based policy accounting on output is disabled Hardware idb is FastEthernet0/0 10.1.13.3 Set next-hop specifies the address of the next hop , specifying the next hop of BGP . Complete the basic interface IP configuration . Add the following configuration on R2 : Neighbor FE80::CE01:8FF:FED8:10 password cisco neighbor FE80::CE01:8FF:FED8:10 activate redistribute connected route-map test (Of course, in the case of FA=0.0.0.0 ), then, in this figure, if the cost of R2 to ASBR-R3 is smaller, the final R2 will be preferred. ! R1#show ip bgp ipv6 unicast summary EIGRP please see the three cups of EIGRP notes on black tea (visit ccietea.com ) Ipv6 nat prefix 2001:2::/96 Ip default-network 172.16.0.0 Nolabel/403 Image Show vrf ipv6 view vrf ipv6 BGP router identifier 1.1.1.1, local AS number 12 Where the State if REACH represents a neighbor up; as STALE means that these neighbors in the last 30s inside is not reachable Image Route tag: A tag that distinguishes between internal routing protocol routes and external routing protocol routes. Ipv6 dhcp server DHCP-pool !! Enable ipv6 DHCP on the interface and call the pool Subnet router anycast address: UNICAST_PREFIX : 0:0:0:0 R2(config)# access-list 1 deny 192.168.3.0 R2(config)# access-list 1 permit any R2(config)# router rip IPv6 addressing Ipv6 router ospf 1 router-id 2.2.2.2 100 In any IS-IS network, the L2 router responsible for inter-area routing must be contiguous. Similarly, for IPv4 single protocol environments, IPv6 single protocol environments, or IPv4-IPv6 environments, L2 routers must be contiguous. Otherwise a routing black hole will be generated. No synchronization Route-map Configure an interface as a passive interface: Static routes Image Image First, in order to avoid the suboptimal path problem, we use the distribution list in the in direction on R2 and R3 to filter out 1.1.1.0 . Image IPv6 header replace IPv4 header prior to forwarding to B . Associate route-map when route is republished (typical case) RIP-1 compatibility RIPv2 sends updates in the form of broadcasts, enabling V1 to receive Optimum and Distributed Switching Interface FastEthernet0/0 vrf forwarding cisco ipv6 enable R2(config)# access-list 1 deny 192.168.3.0 R2(config)# access-list 1 permit any R2(config)# router rip 3.3.3.3/32 PE1#show ipv6 cef vrf cisco 2001:5555::5/128 Single match includes a plurality of conditional statements, logical or operation; multiple match when the statement, using the logic and operation. FastEthernet1/0 Neighbor FE80::CE01:8FF:FED8:10 activate Unassigned Below we summarize some of the key points of the router about route lookup: During the transition of the network from the IPv4 single-protocol network to the IPv4-IPv6 IS-IS router, this command maintains the IS-IS adjacency between IS-IS routers using different protocol sets . It prevents IS-IS routers that use different protocol sets from performing hello checks and losing IS-IS adjacencies. After the network switch or transition is complete, you can configure the adjacency-check back.