ccna dumps 2019 reddit

ccna dumps 2019 reddit

Ipv6 access-list x enters acl configuration mode Origin incomplete, metric 1, localpref 100, valid, internal, best mpls labels in/out nolabel/403 LSP Checksum Mechanism introduction If an OSPF in- process route cannot be summarized: The IPv6 globally unique address 2002:84d6:010a:1::1 , the destination IP address is the IPv6 globally unique address of the PC2 2002:ce7b:1fc8:2::2 . This IPv6 packet is sent to the default gateway of PC1 , which is the router A. . 0000: Add a 32- bit IPv4 address after 5EFE . As shown in the following figure, if the IPv4 address (for tunneling) configured for the ISATAP router is 2.2.2.2 , the interface identifier of the ISATAP tunnel is: RIP is re-released into OSPF Ipv6 nat v6v4 pool v6v4-pool 202.101.100.10 202.101.100.20 prefix-length 24 ipv6 nat v6v4 source list ipv6only-network pool v6v4-pool If B replies to NA , then the neighbor state on B on A is Incomplete -> Reachable . However, if A does not receive any response within a certain period of time after A sends out the NS message , the entry is deleted by Incomplete->Empty . METRIC Exit-address-family Exit-address-family Basic 1111 1110 0xxx xxxx About the prefix list FastEthernet1/0 !! Note that this order must be matched because FastEthernet0/0 Data forwarding method 16 Ip address 192.88.99.1 255.255.255.0 secondary ipv6 address 2002:84d6:010a:0001::/64 eui-64 technical background At this point , the route 1.1.1.0 is seen on R3 , which contains the next hop attribute, and the previous one. Configuration command R3 associates the route-map with the redistribution of the direct route 3.3.3.3/32 , tag#11 , and the route is passed to R2 . On R2 , the redistribution of RIP to OSPF is deployed. After the external route of 3.3.3.3 is injected into OSPF , the tag value is carried by default. As shown in FIG: Route-map features The configuration of PE1 is as follows: 100.1.1.0/24 . At the same time, this re-release becomes the summary route of OSPF . Even if two ASBRs are returned , because there is a static summary route locally, the summary route of OSPF is directly ignored , and sub-optimal is not generated. Path, this route will not be re-released back to RIP and cause other problems. !! Do not activate RIP , but use re-release !! Match the exit of the packet Ip address 3.3.3.3 255.255.255.255 Network No ipv6 rip RIPprocess enable Address does not change) The V4 address pool allows a V6 user to take an address from the pool as a source address after traversing the NAT-PT device. But how do V6 users access the V4 network? Can't let V6 only host ping 202.101.100.2 ? Therefore, you have to add commands to the configuration: Stateless address autoconfiguration Ipv6 unicast-routing Neighbor FE80::CE01:8FF:FED8:10 activate redistribute connected route-map test Image Ivv6 nat v4v6 pool v4v6-pool 2001:2:: 2001:2::FFFF:FFFF prefix-length 96 ipv6 nat v4v6 source list 1 pool v4v6-pool The interface address is 2001::1/64 . Of course, the subnet 172.16.0.0/16 can be further subnetted to get 172.16.10.0/30 or even 172.16.10.1/32 , then if these prefixes exist, when I am going to find 172.16.10.1 , who's What is the highest match? Obviously, is the host prefix of 172.16.10.1/32 , or host routing? This is the longest match principle . Image OSPFv3 uses multicast addresses: FF02::5 and FF02::6 (interface) ip load-sharing per-packet 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 . R1 , R2 , and R3 run RIP , and 1.1.1.0/24 on R1 is not directly announced. On R2 : Interface Serial0/0 ipv6 enable Which exchange method will be used Show ip cef exact-route src-addr dest-addr RIP re-releases the default route Weight 0 !! Redistribute direct routing Image Image The A record in IPv4 is used to map the host name to a V4 address, and the AAAA resource record maps the host name to an IPv6 address. We can do a test: ! Note that at this time, A can actively access B , which means that A can actively ping 2001:2::CA65:6402 this temporary address to achieve the purpose of accessing B. But if we go to clear ipv6 nat translation * on R2 , so 2001:2::CA65:6402 to Ipv6 address 2001:34::3/64 Neighbor 2023::2 prefix-list loopb out exit-address-family 10.1.12.2 This global configuration command enables PBR to take effect on locally originated traffic. Image When the router is adjacent to the host, they learn in some way. 120 No passive-interface fast 0/24 Device automatically, without human intervention, the interface of the MAC to obtain address conversion 64bits the EUI-64 format of the interface ID process are as follows: Access-list 1 permit 10.1.1.0 0.0.0.255 route-map test permit 10 When the IPv6 address is shorthand, multiple leading zeros can be omitted into a 0 ; Route-map BGP2OSPF permit 20 match ip address 2 The AD value of 11.11.11.0/24 is adjusted to be larger than OSPF , for example 130 . So the configuration is as follows: Ipv6 dhcp pool DHCP-pool Ipv6 address FE80::FFFF:FE10:6 link-local ipv6 router isis So when R1 sends a big packet to R4 , there will be no problem. This is fragmented directly at the source of R1 . Of course, we can continue to experiment, set the IPv6 MTU to 1300 bytes on the Fa1/0 interface of R3 , and then continue R1 to ping the big packet to R4 , and finally the cache entry on R1 . UP Test description: ping FF04::1 on R2 , Fa0/0 on the outbound interface If the static route configured by the outbound interface is configured,ccna dumps 2019 reddit, the router considers the destination network segment as a local direct connection . Therefore , when the RIP is in the network , it will be announced. Prefix announcement Bgp router-id 2.2.2.2 !! xxx is validtime , yyy is prefered time , this is absolute time After the end-to-end IPv6 tunnel is established, IPv6 traffic can communicate. 16 bits The header carries optional information specific to the destination of the packet, such as for exchanging registration information between the mobile node and the home agent, moving Ip prefix-list ABC seq 5 permit 172.0.0.0/8 le 24 100x xxxx xxxx xxxx Last retransmission scan length is 0, maximum is 0 Set tag 20 The requirements, methods and tools for implementing data access path control are often very many. If the basic elements such as IP and VLAN in the early stage of the network are very scientific and reasonable, then it is easier and more diverse to deploy in the strategy. This chapter does not discuss the various path control tools in detail. Just a few common tools and methods are discussed. In fact, using the tools learned in the past , such as route-map, etc.