ccna 301

ccna 301

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Ring Security Zones IP telephony refers to a special type of telephone using IP packets to send and receive voice traffic. The phones connect into a switch, just like laptops and desktops. The phones then communicate using the same network as every Switching Concepts The Need for Switches IPv6 has security capabilities built in, including authentication and privacy via IPSec. Day 2 Tasks The switchport trunk encapsulation command sets the trunking protocol on the port, and the switchport mode trunk command sets the port to trunking. and 200.100.2.128 The other rule is that you can’t use the broadcast address on each network or subnet. A broadcast address goes to all devices on the network, so, logically, it can’t be used for devices. A broadcast address is one in which all the host bits are active, or turned on: Modify Router Advertisement settings Supports up to 4096 VLANs On a Layer 3-capable switch, such as the 3560, you would have to set the port manually to access it with the switchport mode access command before putting it into a VLAN. Now let’s look at the output for the show vlan command: My_Router(config)#line vty 0 15 ‹ enter 0 ? to find out how many lines you have My_Router(config-line)# www.subnetting.org – subnetting question generator 0 output errors, 0 collisions, 10 interface resets Take the day 2 exam Complete today’s lab Operational Mode: trunk Ethernet 802.2 SNAP The Network Layer takes the segments from the Transport Layer and breaks them down into smaller units called packets. Most network engineers refer to data as packets, no matter what the OSI layer, which is fine; however,ccna 301, just remember that they are technically packets at the Network Layer. Instructions R2#ping 2001:aaaa:bbbb:cccc::1 Type escape sequence to abort. If you were to check the Ethernet frame, you would see the broadcast address in hexadecimal, which is the Destination field filled with Fs in Figure 2.3 below: Enterprise Wireless Solutions For Class C addresses, the first three bits on the first octet must be set to 110, giving us addresses 192 to 223, for example: Remember also that there are a few subnetting resources available for you to use: 172.16.160.0 End Device - a PC A Class B address must have the first two bits of the first octet set to 10. This means that the first octet can only use the numbers 128 to 191, for example: IPv6 addressing hierarchy IPv6 extensibility access Set trunking mode to ACCESS unconditionally 200.100.2.0 Basic VLAN Troubleshooting Ethernet 802.2 SAP Now imagine that once again you are the bouncer at a nightclub, only this time you have to make sure that the picture matches the person, and you must write down the name and address of everyone before they can enter. Checking IDs this way causes a great deal of delay, and this is how the store- and-forward method of switching works. Switch port default settings are auto-detect duplex and auto-detect speed. If you plug a 10Mbps device into a switch running at half duplex (if you could even find such a device), then the port should detect this and work. This isn’t always the case, though, so the generic advice is hard set the switch port speed and duplex, as illustrated in the output below: Now, Telnet traffic will not be permitted into the VTY ports. The M bit in Router Advertisement messages is the Managed Address Configuration Flag bit. When this bit is set (i.e., it contains a value of 1), it instructs the IPv6 host to obtain a stateful address, which is provided by DHCPv6 servers. The O bit in Router Advertisement messages is the Other Stateful Configuration Flag bit. When this bit is set (i.e., it contains a value of 1), it instructs the IPv6 host to use DHCPv6 to obtain more configuration settings, such as DNS and WINS servers, for example.

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