300-815 claccm

300-815 claccm

Global port security configuration parameters can be validated by issuing the show port-security command. The following shows the output printed by this command based on default values: To add a static route for the network above, you would write the following line of configuration on the router on the left: Router#show ip ospf ? This is one of the hardest parts to understand. I’ve never seen a complete list of rules written down in one Cisco manual. Some refer to them generally or explain some of them, but then miss others completely. The difficulty is that the rules always apply but (until now) you found them only by trial and error. Here are the rules you need to know: R1(config-if)#ip add 172.16.1.1 255.255.0.0 R1(config-if)#no shut Network Time Protocol Sending 5, 100-byte ICMP Echos to 2001:AAAA:BBBB:CCCC::2, timeout is 2 seconds: Take today’s exam A “network” as it applies to network routing is a remote subnet that you would like to reach. Some examples may be 10.1.0.0/24, 192.168.0.0/16, or 38.122.188.0/25. Basically,300-815 claccm, if it’s anything below a /31 subnet, then you ultimately would need to rely on a network route to reach it. Renewal (T1) timer (default 50% of the lease time): Whenever a workstation obtains an IP address, this timer starts up, and when 50% of the lease time has been reached, the DHCP client will try to renew its lease with the original DHCP server. Switchport: Enabled Administrative Mode: trunk Operational Mode: trunk The next packet is the DHCP Offer packet, presented below: 3.Configure the interface for VLANs 10 and 11. Switch-1(config-vlan)#name Example-VLAN-10 Switch-1(config-vlan)#exit Max Addresses limit in System : 1024 There will often be situations where you have VLANs 20 to 50, for example, on one side of your network and 60 to 80 on the other. It doesn’t make sense for VLAN information from the switches on one side to be passed to every switch on the other. For this reason, switches can prune unnecessary VLAN Packet Forwarding 2.6.bLLDP If you have SSH enabled, you should probably disable Telnet and HTTP. When you enter the transport input command, any protocol entered after it is allowed. Any protocol not entered is not allowed. In the output below, you can see that only SSH is allowed: Connect to the switch using a console connection. Connect a PC to the switch or connect the switch to the fast ethernet port on a router. Administrative Mode: trunk Operational Mode: trunk MD5 digest : 0x7D 0x5A 0xA6 0x0E 0x9A 0x72 0xA0 0x3A SwitchA(config)#vlan 2 SwitchA(config-vlan)#name passhot MAC address spoofing is used to spoof a source MAC address in order to impersonate other hosts or devices on the network. Spoofing is simply a term that means masquerading or pretending to be someone you are not. The primary objective of MAC spoofing is to confuse the switch and cause it to believe that the same host is connected to two ports, which causes the switch to attempt to forward frames destined to the trusted host to the attacker as well. Figure 9.