Re: Cisco Packet Tracer Download Link
Emmanuelle Riker
Update 06/04/2024 : A new Cisco Packet Tracer 8.2.2 version has been released for download on Netacad website. This is a bugfix release fixing several bugs on accessibility, usability, and security of Packet Tracer 8.2. Cisco Packet Tracer 8.2 introduced a new command as well as bug fixing regarding incompatible DLLs that caused Packet Tracer crashes.
Cisco Packet Tracer 8.2 is created by Cisco SystemsTM and is provided for free to everyone. Self learners are able to download Cisco Packet Tracer after registering on Cisco Netacad website. This is a major change in Cisco delivery policy for Packet Tracer as previous versions were only available for Netacad students and instructors.
Cisco Packet Tracer 8.2.2 can be downloaded for FREE from official Cisco Netacad website. Log in to Cisco Netacad.com learning website and select Resources > Packet Tracer in the menu to access the download page. The software is provided with several tutorial files allowing academy students to discover the software features.
The NX-OSv 9000 is a virtual appliance designed to simulate the control plane of a Cisco Nexus 9000 switch. The NX-OSv 9000 shares the same software image running on Cisco Nexus 9000 hardware platform. Line card (LC) ASIC provisioning or any interaction from the control plane to rela switch ASICs are emulated by the NX-OSv 9000 software data plane.
Following the the Nexus 7000 Titanium emulator, the NX-OSv 9000 is a moder emulator for datacenter certifications training. It's also great plaform to test network automation prior to production deployment.
NX-OSv 9000 runs on GNS3, KVM, or VMware NSX. Current version of NXOSv is 10.4(1)F. This version adds or enhances VXLAN EVPN First Hop Security (IPv4), radius over DTLS, port-channel load-balance command for MPLS tagged traffic, support to redirect/deny all packets using ePBR policy, VXLAN QoS Outer Header Policy for Layer 2
UCS PE (Platform Emulator) is a powerful Cisco UCS Manager emulator allowing CCNP datacenter students to learn how to configure the UCS environment. The current version emulates the UCS manager 4.2(2aPE1), which includes 62xx/63xx/64xx Fabric Interconnect, C4200 series rack server chassis with C125 rack servers, as well as Cisco UCS M6 and HX220C and HX240C servers support. The S3260 storage server is also emulated in UCS PE. These release can be connected to GNS using VMware.
UCS PE is also featured in a Cisco dCloud programmability demo (cisco login required). The demo includes a comprehensive lab guide including the following content for Cisco UCS PowerTool and the Python SDK:
PT Anywhere is a web application designed to offer a network simulation environment based on Cisco Packet Tracer engine throug a web interface which can be accessed from a web browser. PT Anywhere can as such be integrated inside a website, an online course, a learning systm like moodle... It has been developed by the Open University and Cisco and has been funded by the FORGE project.
The PTBridge java utilitary has been validated working with Cisco Packet Tracer 7.0 . This tool provides real network connectivity to Cisco Packet Tracer, and thus the ability to connect to other lab environments. Download it from Github and connect your Packet Tracer labs to your real Cisco devices !.
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The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, ensure that you understand the potential impact of any command.
A link-local address is an IPv6 unicast address that can be automatically configured on any interface that uses the link-local prefix FE80::/10 (1111 1110 10) and the interface identifier in the modified EUI-64 format. Link-local addresses are not necessarily bound to the MAC address (configured in a EUI-64 format). Link-local addresses can also be manually configured in the FE80::/10 format with the ipv6 address link-local command.
These addresses refer only to a particular physical link and are used for addresses on a single link for purposes such as automatic address configuration and neighbor discovery protocol. Link-local addresses can be used to reach the neighboring nodes attached to the same link. The nodes do not need a globally unique address to communicate. Routers do not forward datagram with link-local addresses. IPv6 routers must not forward packets that have link-local source or destination addresses to other links. All IPv6 enabled interfaces have a link-local unicast address.
For this example, the routers R1, R2 and R3 are connected via serial interface and have the IPv6 addresses configured as mentioned in the network diagram. Loopback addresses are configured on the routers R1 and R3, and the routers use OSPFv3 to communicate with each other. This example uses the ping command to demonstrate the connectivity between the routers with link-local addresses. The routers R1 and R3 can ping each other with the IPv6 local unicast address, but not with their link-local address. However, router R2 is directly connected to R1 and R3 hence it can communicate with both the routers with their link-local address, because link-local addresses are used only within that local network specific to the physical interface.
The routers can ping each other with the global unicast address. If the routers use the link-local address only, the directly connected networks can communicate. For example, R1 can ping R3 with global unicast address but the two routers cannot communicate with link-local addresses. This is shown with the ping and debug ipv6 icmp commands in router R1 and R3.
When the router R1 tries to communicate with router R3 with the link local address, the router R1 returns with an ICMP time-out message that indicates the link-local address is locally specific and cannot communicate to link-local addresses that are outside the directly connected network.
For router R2, the routers R1 and R3 are directly connected and can ping the link-local address of both router R1 and R2 when they communicate the related interface that is connected to the router. The output is shown here:
The link-local address is specific only to that local network. The routers can have the same link-local address and still the directly connected network can communicate with each other without any conflict. This is not the same in case of global unicast address. The global unicast address that are routable must be unique in a network. The show ipv6 interface brief command shows the information about link-local address on the interface.
Trunks are commonly used between switches and other network devices such as a router, another switch, or a server. A network technician must be very familiar with configuring a trunk and ensuring it works properly.
A VLAN trunk is an OSI Layer 2 link between two switches that carries traffic for all VLANs (unless the allowed VLAN list is restricted manually or dynamically). To enable trunk links, configure the ports on either end of the physical link with parallel sets of commands.
To configure a switch port on one end of a trunk link, use the switchport mode trunk command. With this command, the interface changes to permanent trunking mode. The port enters into a Dynamic Trunking Protocol (DTP) negotiation to convert the link into a trunk link even if the interface connecting to it does not agree to the change. DTP is described in the next topic. In this course, the switchport mode trunk command is the only method implemented for trunk configuration.
The Cisco IOS command syntax to specify a native VLAN (other than VLAN 1) is shown in Table 3-6. In the example, VLAN 99 is configured as the native VLAN using the switchport trunk native vlan 99 command.
Look at the configuration of port F0/1 on switch S1 as a trunk port. The native VLAN is changed to VLAN 99 and the allowed VLAN list is restricted to 10, 20, and 30. If the native VLAN is not allowed on the trunk link, the trunk will not allow any data traffic for the native VLAN.
This configuration assumes the use of Cisco Catalyst 2960 switches, which automatically use 802.1Q encapsulation on trunk links. Other switches may require manual configuration of the encapsulation. Always configure both ends of a trunk link with the same native VLAN. If 802.1Q trunk configuration is not the same on both ends, Cisco IOS Software reports errors.
The following output shows the commands used to reset all trunking characteristics of a trunking interface to the default settings. The show interfaces f0/1 switchport command reveals that the trunk has been reconfigured to a default state.
The following sample output shows the commands used to remove the trunk feature from the F0/1 switch port on switch S1. The show interfaces f0/1 switchport command reveals that the F0/1 interface is now in static access mode.
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