ccnp 300-410

ccnp 300-410

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Cisco IOS allows the definition of individual static routes using the ip route global configuration command. With this command, you will specify the subnet, the network mask, and the next hop address, that is, the next step in the path toward the destination. In lieu of a next hop address, you may also use the outgoing interface as shown below: 1 0004.c16f.8741 SecureSticky Gi0/2 - 7.Confirm you have exit interface and next hop listed Cisco documentation advises us to put an EXTENDED ACL as close to the SOURCE as possible and STANDARD ACL as close to the DESTINATION as possible, because that will prevent unnecessary overhead but will still allow any “legitimate” traffic. Voice VLANs [Output Truncated] Verifying that the correct prefixes are being learned via the correct routing protocol A DHCP server can be configured to provide IP addresses in a number of different ways, including: SwitchA(config)#int FastEthernet0/2 SwitchA(config-if)#switchport trunk allowed vlan 2 SwitchA(config-if)#^Z Switch(config-if)#switchport mode dynamic ? ACL Rule 3 – There is an implicit “deny all” at the bottom of every ACL. 4.If the route entry is the same as an existing one, and it is received from the same protocol, then: Switch uptime is 1 hour, 8 minutes System returned to ROM by power-on Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone Link State Routing Protocols ACL Rule 2 – The lines are processed top-down. Switch(config-if)#switchport mode dynamic ? Platform: cisco C1841, Capabilities: Router 2.DHCP Offer packet: The DHCP servers on the local network see the broadcasted Discover message sent by the client and send back a response (DHCP Offer packet) using UDP source port bootps 67 and destination port bootpc 68, also in the form of a broadcast address, because the client still doesn’t have an IP address so it cannot receive Unicast packets. VLSM and MD5 authentication was added and the updates via broadcasts were changed to multicasts on 224.0.0.9. I added the version 2 command to the topology above (on each router),ccnp 300-410, and you can see the new packet capture in Figure 12.3 below: pagp-flap Disabled port-mode-failure Disabled The easy way to perform wildcard masking for the CCNA exam is simply to ensure that you add a number to the subnet mask to give you a total of 255. So, if your subnet mask in one octet was 192, you would add 63 to it to make ip route 192.168.1.10 255.255.255.255 10.0.0.1 Codes: C - Connected, S - Static, I - IGRP, R - RIP, M - Mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP 14.3below: Based on the contents of this routing table, if the router received a packet destined to 80.1.1.1, it would use the RIP route because this is the most specific entry, even though both EIGRP and OSPF have better administrative distance values and are therefore more preferred route sources. The show ip route 80.1.1.1 command illustrated below can be used to verify this statement: 7.Confirm you have exit interface and next hop listed Switch#show dtp Global DTP information In order for the ip route 0.0.0.0 0.0.0.0 command to work, IP routing must be enabled on the router. Here is an example of configuring a gateway of last resort using the ip route 0.0.0.0 0.0.0.0 command: exec-wait Delay EXEC startup on noisy lines finger Allow responses to finger requests i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area Switch#show cdp neighbors Banner messages can be: Dynamic allocation Automatic allocation Static allocation Router(config)#no ip domain-lookup 2.Issue some common show commands for IPv6. 1005 trnet-default active Administrative Mode: trunk Operational Mode: trunk N2 - OSPF NSSA external type 2, E1 - OSPF external type 1, E2 - OSPF external type 2, E – EGP, i - IS-IS, | Output modifiers Router#show ip access-lists Standard IP access list 1 Switch Port Security N2 - OSPF NSSA external type 2, E1 - OSPF external type 1, E2 - OSPF external type 2, E – EGP, i - IS-IS, Switch1(config)#no cdp run entry Information for specific neighbor entry interface CDP interface status and configuration neighbors CDP neighbor entries 　　(W) WLAN Access Point, (P) Repeater, (S) Station, (O) Other Device ID Local Intf Hold-time Capability Port ID Switch1 Gig0/1 120 B Gig0/1 Switch-1(config)#interface GigabitEthernet0/2 Switch-1(config-if)#switchport port-security Network administrators who want to configure a DHCP server also need to configure DHCP scopes as part of this process. A scope is a grouping of IP addresses for a particular section of the network. Each subnet usually has its own scope. 5.Your IT manager changes his mind and wants only SSH access, so change this on your VTY lines. Only certain models and IOS versions will support the SSH command. With default routing, if a router receives a packet and it doesn’t have a destination route in its routing table, it can forward the packet to the default route, which is usually a more powerful Internet edge router carrying a larger routing table. Switchport: Enabled 5.Last step are to check the commands to enable LLDP per interface and disable per device. As with NAT, DHCP issues are almost always due to an error in the configuration (jokingly referred to as a Layer 8 issue, meaning somebody messed up). The lines being pasted into the router configuration are shown below. Delete the previous ACL and then paste in the new version: Switch1(config)#int FastEthernet0/4 Switch1(config-if)#switchport mode trunk Switch1(config-if)#switchport trunk allowed vlan ? Although manual (static) configuration of a trunk link forces the switch to establish a trunk, Dynamic ISL and Dynamic Trunking Protocol (DTP) packets will still be sent out of the interface. This is performed so that a statically configured trunk link can establish a trunk with a neighboring switch that is using DTP, as will be described in the following section.

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