300-420 ensld

300-420 ensld

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Use the default-information originate command to generate a default route into an OSPF routing domain. Telnet traffic sends the password in clear text, which means that it could easily be read on the configuration or by a network sniffer, if one was attached to your network. Switch(config)# 2.Turn CDP off on the remote interface. Clear the CDP entry on the switch and check the outputs again. The entry should be blank. Take today’s exam BranchRouter(config)#ip route 192.168.1.0 255.255.255.0 172.16.5.3 Switch#show lldp neighbors Capability codes: Following this configuration, the show ntp associations command can be used to verify the communications between the NTP devices, as illustrated in the following output: R1#show ipv6 route static IPv6 Routing Table - 6 entries 2.On Switch A, set the hostname, create VLAN 2, and put the interface to which your PC is connected into VLAN 2. You can also give the VLAN a name if you wish. Troubleshooting will almost always involve a configuration issue (unless your interface is down). If traffic isn’t arriving at the destination, you can test the route with the traceroute command or tracert command for a Windows PC. R1(config-subif)#ip add 10.30.30.1 255.255.255.0 R1(config-subif)#exit By having the lease process in place and correlated to the timers presented above, you can be assured that you will always have an IP address in a timely manner without any downtime associated with this and will automatically have a way to build redundancy into the DHCP process. In the previous module, you learned that 802.1Q, or VLAN tagging, inserts a tag into all frames, except those in the native VLAN. The IEEE defined the native VLAN to provide for connectivity to old 802.3 ports that did not understand VLAN tags. 2.7.aStatic 5.Change the MAC address of the PC or plug in another machine. Vlan Mac Address Type Ports Clock is synchronized, stratum 6, reference is 10.0.0.1 An important routing protocol design and configuration consideration is to Port Vlans allowed on trunk Fa0/1 1,10,20,30,40,50 Gateway of last resort is not set ! Switch-1(config)#interface range FastEthernet0/1 – 2 Switch-1(config-if-range)#switchport Purpose Port Status : Secure-up Violation Mode : Restrict Copyright (c) 1986-2005 by Cisco Systems, Inc. Compiled Wed 18-May-05 22:31 by jharirba advertisement version: 2 Router(config)#access-list 1 permit host 172.16.2.2 Router(config)#exit Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Sending updates every 30 seconds, next due in 10 seconds Invalid after 180 seconds, holddown 180, flushed after 240 Redistributing: rip 2.Give VLAN2 an IP address of 192.168.1.1 (SVI) on A and 192.168.1.2 on B. 1.Add an enable password to the switch of cisco. Day 14 – DHCP,300-420 ensld, DNS and NTP Switchport: Enabled Administrative Mode: static access Operational Mode: static access Switch(config)#line vty 0 15 Switch(config-line)#transport input ssh All of these options are configured directly on the DHCP server, but not all DHCP servers offer the ability to set DHCP options. If network administrators would like to use these features, they should utilize an enterprise-level DHCP server. When using small routers as DHCP servers for home offices, there may be no benefit from such functionalities. RouterA#ping 10.1.1.1 Generally, you can look at the configuration syntax for extended ACLs, as follows: R1(config)#interface FastEthernet0/0 security is enabled. Access Mode VLAN: 1 (default) and therefore has a default administrative distance value of 90. The third route is 80.1.0.0/16. This route is learned via OSPF and is an external OSPF route that has an administrative distance of 110. Code: * - installed in RIB Gateway of last resort is not set U - per-user static route, o - ODR, P - periodic downloaded static route R1(config-router)#passive-interface loopback0 R1(config-router)#end Day 7 Lab Duplex:full Dynamic secure MAC addresses are dynamically learned by the switch and are stored in the MAC address table. However, unlike static secure MAC addresses, dynamic secure MAC address entries are removed from the switch when the switch is reloaded or powered down. These addresses must then be relearned by the switch when it boots up again. Router(config-if)#no shut 2.7.eViolation actions Inside the defined DHCP scopes you can configure a number of parameters, such as: RIP protocol debugging is on Bindings from all pools not associated with VRF: l2ptguard Disabled Max Addresses limit in System : 1024 Switch(config)#hostname SwitchOne SwitchOne(config)#ip domain-name mydomain.com SwitchOne(config)#crypto key generate rsa Router# compress-config Compress the configuration file config TFTP load config files The commands above may not work if you are using Packet Tracer. Also, please do try these commands on a router because they are exam topics. Bear in mind that you should disable the ACL on the interface (so it’s no longer live) before you edit it in order to avoid strange or unpredictable behavior. I’ll show you how to edit live ACLs on IOS 12.4 and later shortly. Automatic network summarization is in effect Router#show run ‹ or show ip access lists access-list 1 permit host 172.16.1.1 Read today’s lesson notes (below) Review yesterday’s lesson notes and labs Complete today’s labs Client Mode Troubleshooting Port Security Static secure MAC addresses Dynamic secure MAC addresses Sticky secure MAC addresses Topology The switching process allows the router to accept the packet via one interface and send it out of another. The router will also encapsulate the packet in the appropriate Data Link frame for the outgoing link. Trunking Native Mode VLAN: 1 (default) Shutdown (default) Restrict SwitchA#show interface fa1/1 switchport Name: Fa1/1Switchport: Enabled Administrative Mode: trunk Operational Mode: trunk Router>en Router#conf t It is worth noting that if you have a switch set to transparent mode in- between two other switches, then pruning will not work. In order to understand default routing, you must remember that routers will forward traffic to the most specific route. So, a router will forward a packet to 192.168.1.0/24 before it will send a packet to 192.168.0.0/16. Understanding this concept, the default route is a single route that matches all packets. This means that any valid route to a destination other than a default route will be preferred over the default route. The default route will only be used if there is no valid route to a destination. The default route is the “catch-all” route that says, “If I don’t know where it goes, then I’m going to send it here as a last resort.

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