ccnp r&s validity

ccnp r&s validity

The configuration of R3 is as follows: !! When the route matching ACL1 when Received a Layer 2 frame. When a router connects through a multi-access medium such as Ethernet, a dynamic mechanism is needed to discover each other, such as ARP . ARP can map Layer 2 addresses to IP . If it is a frame relay multipoint link, the adjacency relationship can be learned by using an address resolution protocol, a mapping table, and the like. Configuration example 1 ( -RIP in a single routing protocol environment ) * i100.0.1.0/24 This global configuration command creates a route-map that uses a custom string to represent this route-map . You can do this in a 100 Switch(config-if)# switchport port-security aging static Ip address 192.168.100.254 255.255.255.0 Show ip bgp 10.10.10.0 on R3 If you want to turn off ICMP redirects, you need to use no ip redirects on the interface . Host address. Fa0/20 Ip default-network 108 Other solutions, we will continue to introduce in the following experiments 13 AD Not advertised to any peer Local 5.5.5.5 ? Match ip address 1 Option82 RSTP is designed so that we don't have to rely on the adjustment timer and can make the interface safely transition to the forwarding state. To achieve fast convergence on the interface, RSTP introduces some new concepts: (64513) 200 i After the above configuration is implemented, R1 will filter out the 3.0 route. Portfast,uplinkfast,ccnp r&s validity, backbonefast On R1 , filter out 11.11.11.0/24 routes, other release If ip next-hop and ip next-hop recursive are used in the same sequence of a route-map list , then ip next-hop is valid. If ip next-hop is hanged, ip next-hop recursive is enabled . If ip next-hop recursive and ip next-hop are both hanged, they are thrown to the routing table for processing . Note: A route-map sequence (such as route-map test permit 10 ) allows only one configuration. Remove VLANs from the current list By default, BGP does not allow static default routes to be injected when static is re-released ; unless it is in the BGP process at the same time default-information originate Router ospf 1 MED The portfast interface is enabled to activate the bpdufilter feature. 0 00:04:30 SW3#sh vtp st Ip address 192.168.10.254 255.255.255.0 Field name Experimental example: Called when republishing ACL Distribute-list 1 in Aggregate-address summary address as-set advertise-map (1) can learn the routing entries of R2 update, and the routing table is loaded with 192.1.168.3 3 0003.44d6.c52f 2BB648EB interface-id 1bdb223f Enable the routing function of the Layer 3 switch. Next Hop . Knowledge review DHCP If it is RIP , the network specified by the ip default-network command does not need to be displayed to announce RIP , and once the default gateway is specified, RIP Also pay attention to the sending conditions of ICMP redirects here . At the same time, note that this default route on R3 , if configured to associate with the outbound interface, can not observe the phenomenon of redirection, as for the reason, you know, proxy ARP . If the route is marked d , it means that the route is suppressed. If it is h , it means that the route has signs of flipping. Match abcd , abccd , abcccd, etc. A CFI of 0 indicates a classic format. PROTOCOL We expect the effect of the above configuration is implemented R1 to 100.0.1.0 routing setting MED = 100 , 2.0 disposed MED = 200 is , while R2 to 100.0.2.0 disposed MED = 100 , 1.0 arranged MED to 100 , respectively, to the respective property The EBGP neighbor takes effect, so the MED attribute will be passed along the route in AS345 and finally arrive at R4 . In the above example, the phenomenon we mentioned, R4 will know the route from OSPF and RIP to 192.168.1.0/24 , and finally R4 will choose OSPF route. This is a phenomenon we don't want to see in this environment, because it creates a sub-optimal path. The AD values ​​for several common routing protocols are listed below: Origin IGP, metric 0, localpref 100, valid, internal Paths: (1 available, best #1, table Default-IP-Routing-Table) Not advertised to any peer As shown in the figure on the left, if the PC wants to Telnet the switch, first the PC should be able to ping the switch. Secondly, the VTY should be activated on the switch and the password should be configured. Then we create a VLAN 10 on the Layer 2 switch , assign the F0/1 port to VLAN 10 , and configure an IP address for the logical interface of VLAN 10 of the Layer 2 switch , and the IP of the same network segment as the PC . In this way, the PC can access the switch. But the problem is coming, so that the PC and the switch are on the same network segment and the same VLAN . In case there is a conflict between the IP address configured by the PC and the switch, we can consider dividing the switch into one. Separate VLANs for managing these switches. This VLAN is suitable for the entire traffic network, unified VLAN and unified IP.Planning, it is the management VLAN , so the management VLAN is not a specific VLAN , not VLAN1 , which is a misunderstanding of many people. In general, we will use a more "unprecedented" VLAN ID and IP , such as VLAN255 in this lab , and the network segment.