study ccna

study ccna

LSP Seq Num Ipv6 route 2002::/16 Tunnel0 Used by IPv6 nodes to send messages to themselves. Add route or ipv6 rtu Experimental needs Network 4.4.4.4 0.0.0.0 area 0 BGP based policy accounting on input is disabled BGP based policy accounting on output is disabled Hardware idb is FastEthernet0/0 No ipv6 rip RIPprocess enable Class and classless route lookup Ip address 2.2.2.2 255.255.255.0 no shutdown !! This is the direct link between R1-R3 Address-family ipv6 Address-family ipv6 Path At this time, he himself will still forward if he receives the data packet to 3.0.0.0 , but will not forward to other rips. Network 10.1.23.3 0.0.0.0 area 0 This RS message via IPv4 tunneling, the outer layer is the IPv4 header, source address ISATAP the IPv4 address 1.1.1.1 , the destination address is 2.2.2.2 , which is ISATAP of IPv4 addresses. The IPv4 header is wrapped with IPv6 packets. The source address is the ISATAP host. 2001:12::/64 [Note] If the interface is passive , but at the same time the network interface in the routing process,study ccna, the interface will not attempt to send updates or establish neighbor relationships, but the network segment where it is located will still be declared into the routing process. Maximum route entry FastEthernet1/0 ! ! Ipv6 nat / / Is to shield the route from the RIP re-released in addition to 1.1.1.0 , and re-release the local direct connection Access-list 1 permit 202.101.100.0 0.0.0.255 IPv6 IS-IS network design Image 2.2.2.0 Routing Although the next hop is directed to R1 , it does not use the outbound interface to create routing entries. From the experimental phenomenon, it is not matched by the match . Needless to say, 3.3.3.0 , the associated interface is s0/1 . 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. Image Ipv6 address autoconfig [default] Netsh can be used to configure, manage, and reset the IPV4 V6 protocol stack. 2001: 5555::5/128 Interface fa1/0 Ipv6 enable !! no-autoconfig is related to A bit, as defined in RFC2461 . The A bit also becomes an autonomous address configuration flag. When this optional keyword no-autoconfig is configured in CISCO IOS (that is, with the above command), the A bit is set to 0 . If the A bit is set to 1 (the default is 1 ), it indicates that the host on the local link can use this prefix for stateless autoconfiguration. After the command is configured on the interface, the routing table is not updated periodically in this direction, but the update is triggered. The routing table update will be minimal , including only the initial exchange information of the routing table and the updated information when the routing table changes. This command is only valid on the serial link and must be configured at both ends of the link to produce an effect.