ccna security dumps 2017 pdf

ccna security dumps 2017 pdf

The PMTU here refers to the one-way, the smallest of the data outbound MTU along the way . Image 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 PE1 , P , and PE2 form an LDP neighbor relationship and deliver IGP labels. In order to facilitate the observation of experimental phenomena, the label range of PE1 is set to The uniqueness of the MAC address guarantees the uniqueness of the interface ID . !! Note: If CDP- based detection and object tracking- based detection are applied, the latter is preferred. technical background 11 2 : RIP-2 ; Ip sla monitor 1 No passive-interface fast 0/24 Address resolution ( instead of ARP protocol, using ICMP to complete address resolution ) Image For the above problem, we can set the Fa0/0 port on the router to passive-interface . As a result, the interface will not send OSPF Hello messages. At the same time, the network segment 192.168.1.0/24 associated with the interface will still be Be declared into OSPF so that you can avoid unnecessary In-zone prefix LSA ( LSA type 0x2009 ): Interface tunnel 0 This way the routing table: Via FE80::FFFF:FE10:2, Serial0/0 OI 2001:34::/64 [110/192] 10.1.13.3 Tunnel mode gre ip Overview This is a simple method of data offloading and path redundancy using the longest matching principle. O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2 ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2 !! The red font part is the number of hops to be increased Ip nat inside source route-map nat4 interface serial0/0 overload Switching, so we can only disable fast switching by : no ip route-cache , which in another sense is to turn on process switching. Ipv6 access-list ipv6only-network permit 2001:1::/64 any ipv6 nat prefix 2001:2::/96 Interface loopback0 6to4 automatic tunnel configuration Ip route 0.0.0.0 0.0.0.0 10.1.12.2 !! ipv4 routing, so that the route can access the tunnel destination , which is 10.1.23.3 Last read 00:00:44, last write 00:00:47, hold time is 180, keepalive interval is 60 seconds Neighbor capabilities: 0.0.0.0 . !! ipv6 routing, all traffic to the IPv6 network is thrown into the tunnel <0-4294967295> 32-bit tag value Prefix readdressing OSPFv3 ( RFC2740 ) Preferred lifetime ( of Preferred Lifetime ) ICMP error messages limited to one every 100 milliseconds ICMP redirects are enabled Set metric sets the metric of the routing protocol The verification of Layer 2 and Layer 4 is already robust enough, so IPv6 directly cancels the Layer 3 check of IP . E000 – EFFF Respond to an RA after the router receives the RS : twenty two This global configuration command enables PBR to take effect on locally originated traffic. The route to the OR2 loopback interface is found . The next hop is FE80::5C10:8CFF:FEE0:FE89 , which is the link-local address of the OR2 interface. In the original Ipv6 environment, an interface often has multiple Ipv6 addresses, and OSPF. The maintenance of neighbor relationships is based on stability. The link-local address that is necessary for each interface becomes the best way to establish neighbor relationships. Why is ping unreachable? Because this is a frame relay environment,ccna security dumps 2017 pdf, FE80::5C10:8CFF:FEE0:FE89 is the IPV6 address. There is no mapping on OR1 , and OR2 is the same. Therefore, the frame of the link-local address of each peer is added. Follow the mapping.