### Configure LLDP Global and Interface (Packet Tracer) Source: https://www.packettracernetwork.com/tutorials/pt7-lldp-configuration Demonstrates how to globally enable or disable LLDP using the '[no] lldp run' command and how to control LLDP transmission and reception on specific network interfaces with '[no] lldp transmit' and '[no] lldp receive' commands. ```ios # Globally enable LLDP Router(config)# lldp run # Globally disable LLDP Router(config)# no lldp run # Enable LLDP transmission on an interface Router(config-if)# lldp transmit # Disable LLDP transmission on an interface Router(config-if)# no lldp transmit # Enable LLDP reception on an interface Router(config-if)# lldp receive # Disable LLDP reception on an interface Router(config-if)# no lldp receive ``` -------------------------------- ### Configure Interface and DHCP Server on RouterA (Cisco IOS) Source: https://www.packettracernetwork.com/tutorials/voipconfiguration Configures the FastEthernet 0/0 interface with a static IP address and sets up a DHCP server to assign IP addresses and TFTP server information to IP phones. This is a prerequisite for VoIP services. ```cisco ios RouterA>enable RouterA#configure terminal RouterA(config)#interface FastEthernet0/0 RouterA(config-if)#ip address 192.168.10.1 255.255.255.0 RouterA(config-if)#no shutdown RouterA(config)#ip dhcp pool VOICE #Create DHCP pool named VOICE RouterA(dhcp-config)#network 192.168.10.0 255.255.255.0 #DHCP network network 192.168.10 with /24 mask# RouterA(dhcp-config)#default-router 192.168.10.1 #The default router IP address# RouterA(dhcp-config)#option 150 ip 192.168.10.1 #Mandatory for voip configuration. ``` -------------------------------- ### BGP IOS Commands in Packet Tracer Source: https://www.packettracernetwork.com/tutorials/bgp Lists essential BGP commands available in Cisco Packet Tracer 8.2.2 for both 'enable' and 'router bgp' modes. These commands are crucial for configuring and monitoring BGP sessions, including neighbor relationships, network advertisements, and redistribution. ```text enable mode: show ip bgp show ip bgp neighbors show ip bgp summary clear ip bgp * router bgp mode: bgp log-neighbor-changes bgp redistribute-internal bgp router-id A.B.C.D neighbor A.B.C.D next-hop-self neighbor A.B.C.D remote-as <1-65535> network A.B.C.D network A.B.C.D mask A.B.C.D redistribute connected / eigrp <1-65535> / ospf <1-65535> / static synchronization timers bgp <0-65535> <0-65535> ``` -------------------------------- ### Show LLDP General Information (Packet Tracer) Source: https://www.packettracernetwork.com/tutorials/pt7-lldp-configuration Displays general information about the LLDP protocol's status and configured timers on a Cisco device. This command is useful for verifying if LLDP is active and understanding its advertisement and hold times. ```ios Router#show lldp Global LLDP Information: Status: ACTIVE LLDP advertisements are sent every 30 seconds LLDP hold time advertised is 120 seconds LLDP interface reinitialisation delay is 2 seconds ``` -------------------------------- ### Sample eBGP Configuration: WAN1 Router Source: https://www.packettracernetwork.com/tutorials/bgp Demonstrates the configuration for a simple eBGP peering between a WAN1 router and an ISP1 router. This includes interface IP addressing and the BGP router configuration, specifying the neighbor's IP address and remote AS number. ```cisco interface Serial0/0/0 ip address 156.12.1.6 255.255.255.252 ! router bgp 65000 bgp log-neighbor-changes no synchronization neighbor 156.12.1.5 remote-as 10000 ``` -------------------------------- ### Sample eBGP Configuration: ISP1 Router Source: https://www.packettracernetwork.com/tutorials/bgp Shows the configuration for the ISP1 router, establishing an eBGP peering with the WAN1 router. It includes interface configurations for loopback networks to be advertised and the serial interface for peering, along with the BGP router settings. ```cisco interface Loopback0 ip address 156.100.1.1 255.255.255.0 ! interface Loopback1 ip address 156.100.2.1 255.255.255.0 ! interface Loopback2 ip address 156.100.4.1 255.255.254.0 ! interface Serial0/0/0 ip address 156.12.1.5 255.255.255.252 clock rate 500000 ! router bgp 10000 bgp log-neighbor-changes no synchronization neighbor 156.12.1.6 remote-as 65000 network 156.100.4.0 mask 255.255.254.0 network 156.100.2.0 mask 255.255.255.0 network 156.100.1.0 mask 255.255.255.0 ! ``` -------------------------------- ### Verify PTP Global Configuration Source: https://www.packettracernetwork.com/tutorials/precision-time-protocol This command displays the global Precision Time Protocol (PTP) configuration details on a Cisco switch. It provides information such as the PTP device type, clock identity, domain, port count, and quality metrics, essential for confirming PTP is active and configured correctly. ```ios Switch#show ptp clock ``` -------------------------------- ### Verify PTP Port Configuration Source: https://www.packettracernetwork.com/tutorials/precision-time-protocol This command verifies the Precision Time Protocol (PTP) configuration on a specific network interface of a Cisco switch. It shows the PTP port state (e.g., MASTER), PTP version, delay mechanism, and timing intervals, crucial for ensuring PTP is functioning as expected on the interface. ```ios Switch#show ptp port ``` -------------------------------- ### Show LLDP Neighbors Detail (Packet Tracer) Source: https://www.packettracernetwork.com/tutorials/pt7-lldp-configuration Provides detailed information about each LLDP discovered neighbor, including chassis ID, port ID, system name, system description, capabilities, and management addresses. This command is crucial for in-depth network troubleshooting and inventory. ```ios Router#show lldp neighbors detail ------------------------------------------------ Chassis id: 0001.C916.6501 Port id: Fa0/0 Port Description: FastEthernet0/0 System Name: Router System Description: Cisco IOS Software, 1841 Software (C1841-ADVIPSERVICESK9-M), Version 12.4(15)T1, RELEASE SOFTWARE (fc2) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2007 by Cisco Systems, Inc. Compiled Wed 18-Jul-07 04:52 by pt_team Time remaining: 90 seconds System Capabilities: R Enabled Capabilities: R Management Addresses - not advertised Auto Negotiation - supported, enabled Physical media capabilities: 100baseT(HD) Media Attachment Unit type: 10 Vlan ID: 1 ------------------------------------------------ Chassis id: 00D0.FFE9.B901 Port id: Fa0/1 Port Description: FastEthernet0/1 System Name: Switch System Description: Cisco IOS Software, C2960 Software (C2960-LANBASE-M), Version 12.2(25)FX, RELEASE SOFTWARE (fc1) Copyright (c) 1986-2005 by Cisco Systems, Inc. Compiled Wed 12-Oct-05 22:05 by pt_team Time remaining: 90 seconds System Capabilities: B Enabled Capabilities: B Management Addresses - not advertised Auto Negotiation - supported, enabled Physical media capabilities: 100baseT(HD) 1000baseT(HD) Media Attachment Unit type: 10 Vlan ID: 1 Total entries displayed: 2 Router# ``` -------------------------------- ### HSRP Configuration Commands in Cisco Packet Tracer Source: https://www.packettracernetwork.com/tutorials/hsrp-configuration-new This snippet lists the available IOS commands for configuring HSRP in Cisco Packet Tracer. These commands enable HSRP, set virtual IP addresses, manage router priorities, configure timers, and enable interface tracking. ```text standby <0-4095> ip : Enable HSRP and set the virtual IP address standby <0-4095> preempt : Overthrow lower priority Active routers standby <0-4095> priority :Priority level standby <0-4095> timers :Hello and hold timers standby <0-4095> track :Priority Tracking standby version <1-2> :HSRP version ``` -------------------------------- ### Configure Frame Relay Hub Router (R0) in Packet Tracer Source: https://www.packettracernetwork.com/tutorials/framerelay This configuration sets up the hub router (R0) with two sub-interfaces for Frame Relay virtual circuits. It includes IP addressing, Frame Relay encapsulation, DLCI mapping, and clock rate settings. The `encapsulation frame-relay` command on the main interface is crucial before configuring sub-interfaces. ```cisco interface Serial0/0/0 no ip address encapsulation frame-relay ! interface Serial0/0/0.101 point-to-point ip address 192.168.101.1 255.255.255.252 frame-relay interface-dlci 101 clock rate 2000000 ! interface Serial0/0/0.102 point-to-point ip address 192.168.102.1 255.255.255.252 frame-relay interface-dlci 102 clock rate 2000000 ``` -------------------------------- ### Configure Guest SSID - Cisco IOS Source: https://www.packettracernetwork.com/tutorials/cisco-isr819-ap-configuration This configuration snippet defines and enables a guest SSID on a Cisco network device. It includes setting the SSID name, enabling guest mode, configuring authentication methods (open, WPA-PSK), and associating the SSID with a Dot11Radio interface. ```cisco dot11 ssid GUEST_SSID authentication open authentication key-management wpa wpa-psk ascii 0 12345678 guest-mode ! interface Dot11Radio0 no ip address encryption mode ciphers aes-ccm ssid GUEST_SSID ``` -------------------------------- ### Configure CME IP and Telephony Services Source: https://www.packettracernetwork.com/tutorials/voipadvancedconfiguration Sets up the IP address, routing, and telephony services for the CME router, including maximum ephones, DNs, and source address. ```cisco hostname CME ! interface FastEthernet0/1 ip address 192.168.65.3 255.255.255.0 duplex auto speed auto ! ip classless ip route 0.0.0.0 0.0.0.0 192.168.69.1 ! telephony-service max-ephones 42 max-dn 144 ip source-address 192.168.65.3 port 2000 auto assign 4 to 6 auto assign 1 to 5 ``` -------------------------------- ### Configure Phone Directory Entry for IP Phone 2 (Cisco IOS) Source: https://www.packettracernetwork.com/tutorials/voipconfiguration Assigns a second directory number (extension) to another IP phone within the Call Manager Express configuration on a Cisco router. This enables the second phone to be registered and used for communication. ```cisco ios RouterA(config)#ephone-dn 2 #Defining the first directory entry# RouterA(config-ephone-dn)#number 54002 #Assign the phone number to this entry# ``` -------------------------------- ### Configure Frame Relay Spoke Router (R1) in Packet Tracer Source: https://www.packettracernetwork.com/tutorials/framerelay This configuration sets up a spoke router (R1) with a single virtual circuit to connect to the hub router. It includes IP addressing, Frame Relay encapsulation, and DLCI mapping. The DLCI is locally significant between the WAN Cloud and the router. ```cisco interface Serial0/0/0 ip address 192.168.101.2 255.255.255.252 encapsulation frame-relay frame-relay interface-dlci 100 ``` -------------------------------- ### Configure Phone Directory Entry for IP Phone 1 (Cisco IOS) Source: https://www.packettracernetwork.com/tutorials/voipconfiguration Assigns a directory number (extension) to an IP phone within the Call Manager Express configuration on a Cisco router. This allows the phone to be registered and used on the network. ```cisco ios RouterA(config)#ephone-dn 1 #Defining the first directory entry# RouterA(config-ephone-dn)#number 54001 #Assign the phone number to this entry# ``` -------------------------------- ### Show LLDP Neighbors (Packet Tracer) Source: https://www.packettracernetwork.com/tutorials/pt7-lldp-configuration Lists discovered LLDP neighbors, including their device ID, the local interface on which they were discovered, hold time, capabilities, and the remote port ID. This helps in understanding network topology and device connectivity. ```ios Router#show lldp neighbors Capability codes: (R) Router, (B) Bridge, (T) Telephone, (C) DOCSIS Cable Device (W) WLAN Access Point, (P) Repeater, (S) Station, (O) Other Device ID Local Intf Hold-time Capability Port ID Router Fa0/0 120 R Fa0/0 Switch Fa0/0 120 B Fa0/1 Total entries displayed: 2 ``` -------------------------------- ### Show Power Inline Configuration on Cisco Switch Source: https://www.packettracernetwork.com/tutorials/pt71-wlc-configuration Displays the power status of inline interfaces on a Cisco switch, indicating the power consumed and remaining for connected devices like Lightweight Access Points. This is crucial for ensuring sufficient power budget for APs. ```cisco Switch#show power inline Available:370.0(w) Used:15.0(w) Remaining:355.0(w) Interface Admin Oper Power Device Class Max (Watts) --------- ------ ---------- ------- ------------------- ----- ---- Fa0/1 auto on 5.0 Light Weight Access Point0n/a 15.4 Fa0/2 auto on 5.0 Light Weight Access Point1n/a 15.4 Fa0/3 auto on 5.0 Light Weight Access Point2n/a 15.4 ``` -------------------------------- ### Configure Frame Relay Spoke Router (R2) in Packet Tracer Source: https://www.packettracernetwork.com/tutorials/framerelay This configuration sets up another spoke router (R2) with a single virtual circuit to connect to the hub router. It includes IP addressing, Frame Relay encapsulation, and DLCI mapping. The DLCI is locally significant between the WAN Cloud and the router. ```cisco interface Serial0/0/0 ip address 192.168.102.2 255.255.255.252 encapsulation frame-relay frame-relay interface-dlci 100 ``` -------------------------------- ### Configure CME-3 IP and Telephony Services Source: https://www.packettracernetwork.com/tutorials/voipadvancedconfiguration Sets up the IP address, routing, and telephony services for the CME-3 router, including maximum ephones, DNs, and source address. ```cisco hostname CME-3 ! interface FastEthernet0/0 ip address 192.168.69.254 255.255.255.0 duplex auto speed auto ! ip classless ip route 0.0.0.0 0.0.0.0 192.168.69.1 ! telephony-service max-ephones 5 max-dn 5 ip source-address 192.168.69.254 port 2000 auto assign 4 to 6 auto assign 1 to 5 ``` -------------------------------- ### Configure Voice VLAN on SwitchA (Cisco IOS) Source: https://www.packettracernetwork.com/tutorials/voipconfiguration Configures a voice VLAN on a Cisco switch to separate voice traffic from data traffic. This ensures Quality of Service (QoS) for VoIP communications by assigning voice packets to a specific VLAN. ```cisco ios SwitchA(config)#interface range fa0/1 – 5 #Configure interface range# SwitchA(config-if-range)#switchport mode access SwitchA(config-if-range)#switchport voice vlan 1 #Define the VLAN on which voice packets will be handled# ``` -------------------------------- ### Configure PTP Modes in Packet Tracer Source: https://www.packettracernetwork.com/tutorials/precision-time-protocol This snippet shows how to configure the Precision Time Protocol (PTP) mode on a Cisco IE2000 switch within Packet Tracer 8.2. It demonstrates selecting a PTP mode (boundary, end-to-end transparent, or forward) and enabling PTP on a specific interface. ```ios Switch(config)#ptp mode boundary Switch(config)#interface fastEthernet 1/1 Switch(config-if)#ptp enable ``` -------------------------------- ### Configure WPA Enterprise on Linksys AP with RADIUS Source: https://www.packettracernetwork.com/tutorials/radiusconfiguration This section outlines the steps to configure a Linksys WRT300N wireless access point for WPA Enterprise security using RADIUS authentication. It involves setting up the AP's IP, configuring the RADIUS server (Server-PT) with client details and user credentials, and then configuring the AP and a client laptop with the appropriate wireless security settings. ```configuration 1. Linksys AP IP: 192.168.1.1/24 2. RADIUS Server (Server-PT) IP: 192.168.1.2/24 3. Server-PT AAA Service: - Client Name: Linksys - Client IP: 192.168.1.1 - Client Password: deltapassword - User: user1, Password: test 4. Linksys AP Wireless Settings: - Security: WPA TKIP - RADIUS Server IP: 192.168.1.2 - Shared Secret: deltapassword 5. Laptop Wireless Settings: - Security: WPA TKIP - User ID: user1 - Password: test ``` -------------------------------- ### Configure PoE on Cisco 3560 Switch Interface Source: https://www.packettracernetwork.com/tutorials/voip-devices This configuration enables Power over Ethernet (PoE) on a specific interface of a Cisco 3560 multilayer switch, allowing it to power an IP phone. The 'power inline auto' command automatically detects and supplies power to connected devices. ```cisco-ios Switch(config)#int fastEthernet 0/1 Switch(config-if)#power inline auto ``` -------------------------------- ### Configure Call Manager Express Telephony Service on RouterA (Cisco IOS) Source: https://www.packettracernetwork.com/tutorials/voipconfiguration Enables and configures the Call Manager Express (CME) telephony service on a Cisco router. This involves setting the maximum number of directory numbers and phones, specifying the IP source address, and configuring auto-assignment of extension numbers. ```cisco ios RouterA(config)#telephony-service #Configuring the router for telephony services# RouterA(config-telephony)#max-dn 5 #Define the maximum number of directory numbers# RouterA(config-telephony)#max-ephones 5 #Define the maximum number of phones# RouterA(config-telephony)#ip source-address 192.168.10.1 port 2000 #IP Address source# RouterA(config-telephony)#auto assign 4 to 6 #Automatically assigning ext numbers to buttons# RouterA(config-telephony)#auto assign 1 to 5 #Automatically assigning ext numbers to buttons# ``` -------------------------------- ### Display Netflow Cache (Cisco IOS) Source: https://www.packettracernetwork.com/tutorials/packet-tracer-netflow This command displays the Netflow cache on a Cisco ISR router, showing details about active and inactive flows. It helps in verifying if traffic is being captured and processed by Netflow. The output includes packet size distribution, flow statistics, and source/destination information. ```cisco RouterA#show ip cache flow IP packet size distribution (729 total packets): 1-32 64 96 128 160 192 224 256 288 320 352 384 416 448 480 .000 1.00 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 512 544 576 1024 1536 2048 2560 3072 3584 4096 4608 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 IP Flow Switching Cache, 278544 bytes 2 active, 4094 inactive, 337 added 3 ager polls, 0 flow alloc failures Active flows timeout in 30 minutes Inactive flows timeout in 15 seconds IP Sub Flow Cache, 34056 bytes 0 active, 1024 inactive, 0 added, 0 added to flow 0 alloc failures, 0 force free 1 chunk, 1 chunk added last clearing of statistics never Protocol Total Flows Packets Bytes Packets Active(Sec) Idle(Sec) -------- Flows /Sec /Flow /Pkt /Sec /Flow /Flow TCP-SKINNY 335 0.1 2 40 0.1 1.3 15.0 Total: 335 0.1 2 40 0.1 1.3 15.0 SrcIf SrcIPaddress DstIf DstIPaddress Pr SrcP DstP Pkts Fa0/0 192.168.10.4 Local 192.168.10.1 06 0401 07d0 8 Fa0/0 192.168.10.2 Local 192.168.10.1 06 0401 07d0 23 RouterA# ``` -------------------------------- ### HSRP Configuration for Cisco 2911 ISR Routers (Router1) Source: https://www.packettracernetwork.com/tutorials/hsrp-configuration-new This code configures HSRP on Router1 for two different subnets using Cisco IOS commands. It sets up GigabitEthernet interfaces with IP addresses, enables HSRP version 2, and configures HSRP groups with specific virtual IP addresses. Unlike Router0, preemption is not explicitly configured here, relying on default priorities. ```ios interface GigabitEthernet0/0 ip address 192.168.1.3 255.255.255.0 duplex auto speed auto standby version 2 standby 1 ip 192.168.1.1 ! interface GigabitEthernet0/1 ip address 192.168.2.3 255.255.255.0 duplex auto speed auto standby version 2 standby 2 ip 192.168.2.1 ``` -------------------------------- ### DHCP Configuration for WLC Discovery (Cisco IOS) Source: https://www.packettracernetwork.com/tutorials/pt71-wlc-configuration Configures DHCP on a Cisco Catalyst switch to assign IP addresses to network devices and specifically uses DHCP option 150 to provide the WLC's IP address to Lightweight Access Points. This enables automatic WLC discovery by the APs. ```cisco ip dhcp excluded-address 192.168.1.1 192.168.1.9 ! ip dhcp pool MGMT network 192.168.1.0 255.255.255.0 default-router 192.168.1.1 option 150 ip 192.168.1.254 ``` -------------------------------- ### HSRP Configuration for Cisco 2911 ISR Routers (Router0) Source: https://www.packettracernetwork.com/tutorials/hsrp-configuration-new This code configures HSRP on Router0 for two different subnets using Cisco IOS commands. It sets up GigabitEthernet interfaces with IP addresses, enables HSRP version 2, and configures HSRP groups with specific virtual IP addresses, priorities, and preemption settings. ```ios interface GigabitEthernet0/0 ip address 192.168.1.2 255.255.255.0 duplex auto speed auto standby version 2 standby 1 ip 192.168.1.1 standby 1 priority 120 standby 1 preempt ! interface GigabitEthernet0/1 ip address 192.168.2.2 255.255.255.0 duplex auto speed auto standby version 2 standby 2 ip 192.168.2.1 standby 2 priority 120 standby 2 preempt ``` -------------------------------- ### Configure CME Ephone and Number Assignment Source: https://www.packettracernetwork.com/tutorials/voipadvancedconfiguration Declares ephone-dn and ephone configurations for CME, assigning numbers and specifying phone types and MAC addresses. ```cisco ephone-dn 1 number 1101 ! ephone-dn 2 number 1102 ! ephone-dn 3 number 1103 ! ephone-dn 4 number 1104 ! ephone-dn 5 number 1105 ! ephone-dn 6 number 1106 ! ephone 1 device-security-mode none mac-address 0090.0C57.C85E type 7960 button 1:1 ! ephone 2 device-security-mode none mac-address 0090.0C20.BA20 type 7960 button 1:2 ! ephone 3 device-security-mode none mac-address 00E0.A340.E430 type 7960 button 1:3 ! ephone 4 device-security-mode none mac-address 0060.4710.AE01 type 7960 button 1:4 ! ephone 5 device-security-mode none mac-address 000C.8521.0C20 type 7960 button 1:5 ! ephone 6 device-security-mode none mac-address 00D0.D31A.7EE9 type CIPC button 1:6 ``` -------------------------------- ### Configure HSRP on Cisco Switch VLAN Interfaces Source: https://www.packettracernetwork.com/tutorials/hsrp-configuration-new This configuration enables HSRP on VLAN interfaces for two Cisco Catalyst switches. It sets up a virtual IP address and enables preemption for the active router. The 'standby version 2' command is specific to newer Cisco IOS versions and Packet Tracer. ```cisco ios interface Vlan100 ip address 192.168.1.2 255.255.255.0 standby 1 ip 192.168.1.1 standby 1 preempt standby version 2 ! interface Vlan200 ip address 192.168.2.2 255.255.255.0 standby 2 ip 192.168.2.1 standby 2 preempt standby version 2 ``` -------------------------------- ### Configure CME-3 Ephone and Number Assignment Source: https://www.packettracernetwork.com/tutorials/voipadvancedconfiguration Declares ephone-dn and ephone configurations for CME-3, assigning numbers and specifying phone types and MAC addresses. ```cisco ephone-dn 1 number 2001 ! ephone-dn 2 number 2002 ! ephone 1 device-security-mode none mac-address 0090.0C57.C85E type 7960 ! ephone 2 device-security-mode none mac-address 0090.0C20.BA20 type 7960 ! ephone 3 device-security-mode none mac-address 0005.5E9E.2AC5 type 7960 button 1:2 ! ephone 4 device-security-mode none mac-address 0060.5C2D.6220 type 7960 button 1:1 ``` -------------------------------- ### Configure CME-3 Dial-Peer for VoIP Call Routing Source: https://www.packettracernetwork.com/tutorials/voipadvancedconfiguration Configures a voice dial peer on CME-3 to route calls to a specific IP address, using a destination pattern for call matching. ```cisco dial-peer voice 1 voip destination-pattern 1... session target ipv4:192.168.65.254 ``` -------------------------------- ### Standard ACL Configuration in Cisco Packet Tracer Source: https://www.packettracernetwork.com/tutorials/packet-tracer-acls This snippet demonstrates the configuration of a standard Access Control List (ACL) in Cisco Packet Tracer. Standard ACLs filter traffic based solely on the source IP address. They are typically placed near the destination to be effective. ```cisco access-list 1 permit 10.2.25.0 0.0.0.255 access-list 1 deny any ``` -------------------------------- ### Configure Netflow Ingress on Router Interface (Cisco IOS) Source: https://www.packettracernetwork.com/tutorials/packet-tracer-netflow This code snippet configures Netflow collection on the ingress of a FastEthernet interface on a Cisco ISR router. It enables the router to capture traffic flow data entering the interface. This is a fundamental step for Netflow monitoring. ```cisco interface FastEthernet0/0 ip flow ingress ip address 192.168.10.1 255.255.255.0 duplex auto speed auto ``` -------------------------------- ### Configure Netflow Export Destination and Version (Cisco IOS) Source: https://www.packettracernetwork.com/tutorials/packet-tracer-netflow This configuration sets the destination IP address and UDP port for Netflow data export from an ISR router to a Netflow collector. It also specifies Netflow version 9, which is a standardized and widely used version. Ensure the collector is listening on the specified port. ```cisco ip flow-export destination 192.168.20.2 9996 ip flow-export version 9 ``` -------------------------------- ### Configure CME Dial-Peer for VoIP Call Routing Source: https://www.packettracernetwork.com/tutorials/voipadvancedconfiguration Configures a voice dial peer on CME to route calls to a specific IP address, using a destination pattern for call matching. ```cisco dial-peer voice 2 voip destination-pattern 2... session target ipv4:192.168.69.254 ``` -------------------------------- ### Extended ACL Configuration in Cisco Packet Tracer Source: https://www.packettracernetwork.com/tutorials/packet-tracer-acls This snippet shows the configuration of an extended Access Control List (ACL) in Cisco Packet Tracer. Extended ACLs offer more granular control, filtering traffic based on source/destination IP, ports, and protocols. They should be placed near the source to conserve bandwidth. ```cisco access-list 1 permit ip 10.2.25.0 0.0.0.255 10.1.0.0 0.0.255.255 access-list 101 permit icmp any 10.1.0.0 0.0.255.255 echo access-list 1 deny ip any any ```