To-Do List #01: Switch Hardening /w Commands

1. Change default login credentials (username and password) on the switch
2. Disable unnecessary services and protocols on the switch
3. Enable SSH or SFTP for remote management of the switch instead of using Telnet
4. Configure access control lists (ACLs) to limit network access to the switch
5. Enable port security to prevent unauthorized access to the switch
6. Configure VLANs to segment the network and limit broadcast traffic
7. Enable port mirroring to monitor network traffic
8. Implement Network Access Control (NAC) to ensure only authorized devices can access the network
9. Implement 802.1x for network access control
10. Implement DHCP Snooping to prevent rogue DHCP servers
11. Implement ARP Inspection to prevent ARP spoofing attacks
12. Implement STP (Spanning Tree Protocol) security features
13. Implement Port Security to limit the number of MAC addresses on a port
14. Implement DHCP Option 82 to provide additional information about clients
15. Implement Loop Prevention Protocols (STP, RSTP, MSTP)
16. Implement 802.1x for port-based network access control
17. Implement Access Control Lists (ACLs)
18. Implement VLAN Access Control Lists (VACLs)
19. Implement Port Security
20. Implement DHCP Snooping
21. Implement STP (Spanning Tree Protocol)
22. Implement LLDP (Link Layer Discovery Protocol)
23. Implement LLDP-MED (Link Layer Discovery Protocol – Media Endpoint Discovery)
24. Implement Syslog
25. Implement SNMP (Simple Network Management Protocol)
26. Implement VPN (Virtual Private Network)
27. Implement NAC (Network Access Control)
28. Implement DDoS (Distributed Denial of Service) Mitigation
29. Implement IDS/IPS (Intrusion Detection and Prevention System)
30. Implement Regular Security Audits and Vulnerability Scans

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Change default login credentials (username and password) on the switch

Explanation: The first step in securing a switch is to change the default login credentials to prevent unauthorized access.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# username <username> password <password>
HPE/Aruba	username <username> password <password>
Juniper	set system login user <username> class super-user authentication plain-text-password <password>
Extreme	set account admin <username> <password>
Fortinet	config system admin edit <username> set password <password> end

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Disable unnecessary services and protocols on the switch

Explanation: Disabling unnecessary services and protocols on the switch can help to reduce the attack surface and prevent potential vulnerabilities.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# no service <service-name>
HPE/Aruba	no service <service-name>
Juniper	delete system services <service-name>
Extreme	configure no service <service-name>
Fortinet	config system global set <service-name> disable end

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Enable SSH or SFTP for remote management of the switch instead of using Telnet

Explanation: Telnet is an unencrypted protocol that sends data in plain text, making it vulnerable to eavesdropping and man-in-the-middle attacks. Enabling SSH or SFTP for remote management of the switch provides a secure method for remote access.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# ip ssh version 2 switch(config)# username <username> password <password> switch(config)# line vty 0 4 switch(config-line)# transport input ssh
HPE/Aruba	ip ssh username <username> password <password> line vty 0 4 transport input ssh
Juniper	set system services ssh set system login user <username> class super-user authentication plain-text-password <password>
Extreme	enable sftp set account admin <username> <password>
Fortinet	config system global set admin-ssh-status enable end config system admin edit <username> set password <password> end

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Configure access control lists (ACLs) to limit network access to the switch

Explanation: Access control lists (ACLs) can be used to restrict network access to the switch based on IP addresses, ports, and protocols. This can help to limit the attack surface and prevent unauthorized access to the switch.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# ip access-list <name> <permit/deny> <source> <source-wildcard> <log/log-input> switch(config)# interface <interface> switch(config-if)# ip access-group <name> in/out
HPE/Aruba	ip access-list <name> <permit/deny> <source> <source-wildcard> interface <interface> ip access-group <name> in/out
Juniper	set firewall family <inet/inet6> filter <name> term <term-name> from source-address <source> set firewall family <inet/inet6> filter <name> term <term-name> then <permit/deny> set interfaces <interface> unit <unit> family <inet/inet6> filter input <name> commit
Extreme	configure access-list <name> <permit/deny> <source> <source-wildcard> configure ports <interface> ip access-group <name> in/out
Fortinet	config firewall addrgrp edit <name> append member <source> end config firewall policy edit <policy_id> set srcintf <interface> set srcaddr <name> set action <permit/deny> end

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Enable port security to prevent unauthorized access to the switch

Explanation: Port security can be used to limit the number of MAC addresses that are allowed to access a specific port on the switch. This can help to prevent unauthorized access to the switch.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# interface <interface> switch(config-if)# switchport port-security switch(config-if)# switchport port-security mac-address <mac-address> switch(config-if)# switchport port-security maximum <number>
HPE/Aruba	interface <interface> switchport port-security switchport port-security mac-address <mac-address> switchport port-security maximum <number>
Juniper	set interfaces <interface> unit <unit> family <inet/inet6> port-security mac-limit <number> set interfaces <interface> unit <unit> family <inet/inet6> port-security mac-move-limit <number> set interfaces <interface> unit <unit> family <inet/inet6> port-security mac-sticky
Extreme	configure ports <interface> port-security mac-limit <number> port-security mac-move-limit <number> port-security mac-sticky
Fortinet	config system interface edit <interface> set mac-auth-bypass enable set mac-auth-port-mode multi-auth end config user mac-address edit <mac-address> set interface <interface> end

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Configure VLANs to segment the network and limit broadcast traffic

Explanation: Configuring virtual LANs (VLANs) can help to segment the network, limit broadcast traffic and improve network performance. This can also prevent unauthorized access to the switch by limiting the broadcast domain.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# vlan <id> switch(config-vlan)# name <name> switch(config)# interface <interface> switch(config-if)# switchport mode access switch(config-if)# switchport access vlan <id>
HPE/Aruba	vlan <id> name <name> interface <interface> switchport mode access switchport access vlan <id>
Juniper	set vlans <name> vlan-id <id> set interfaces <interface> unit <unit> family <inet/inet6> vlan-id <id>
Extreme	configure vlan <name> add <id> configure ports <interface> vlan-mode access vlan <id>
Fortinet	config vlan edit <id> set interface <interface> end

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Enable port mirroring to monitor network traffic

Explanation: Port mirroring allows a copy of all packets that are transmitted or received on one port to be sent to another port for monitoring and analysis. This can help to detect and respond to security incidents and troubleshoot network issues.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# monitor session <session-id> source interface <interface> switch(config)# monitor session <session-id> destination interface <interface>
HPE/Aruba	monitor session <session-id> source interface <interface> monitor session <session-id> destination interface <interface>
Juniper	set protocols span session <session-id> source interface <interface> set protocols span session <session-id> destination interface <interface>
Extreme	configure ports <interface> spanning-tree monitor <interface>
Fortinet	config switch-controller mirror edit <session-id> set src-port <interface> set dst-port <interface> end

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Implement Network Access Control (NAC) to ensure only authorized devices can access the network

Explanation: Network Access Control (NAC) can be used to authenticate and authorize devices that are attempting to access the network. This can help to prevent unauthorized devices from accessing the network.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# aaa new-model switch(config)# aaa authentication login default group <group-name> switch(config)# aaa authorization network default group <group-name> switch(config)# aaa accounting network default start-stop group <group-name>
HPE/Aruba	aaa new-model aaa authentication login default group <group-name> aaa authorization network default group <group-name> aaa accounting network default start-stop group <group-name>
Juniper	set access authentication-order radius set access authentication-order tacacs set access authentication-order local set access authentication radius <radius-server> set access authentication tacacs <tacacs-server>
Extreme	configure aaa radius-server <radius-server> tacacs-server <tacacs-server> end
Fortinet	config system nac-policy edit <policy-id> set auth-method <radius/tacacs> config radius-server edit <radius-server> set server <server-ip> set secret <secret-key> end config tacacs-server edit <tacacs-server> set server <server-ip> set secret <secret-key> end set auth-server <radius-server/tacacs-server> end

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Implement 802.1x for network access control

Explanation: 802.1x is an authentication protocol that can be used to authenticate devices and users attempting to access the network. This can help to prevent unauthorized devices from accessing the network.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# dot1x system-auth-control switch(config)# interface <interface> switch(config-if)# dot1x pae authenticator switch(config-if)# dot1x port-control <auto/force-authorized/force-unauthorized>
HPE/Aruba	dot1x system-auth-control interface <interface> dot1x pae authenticator dot1x port-control <auto/force-authorized/force-unauthorized>
Juniper	set dot1x system-auth-control set interfaces <interface> unit <unit> family <inet/inet6> 802-1X <authenticator> set interfaces <interface> unit <unit> family <inet/inet6> port-control <auto/force-authorized/force-unauthorized>
Extreme	configure dot1x port-control <auto/force-authorized/force-unauthorized> end
Fortinet	config switch-controller security-policy edit <policy-id> set dot1x-enforcement enable end

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Implement DHCP Snooping to prevent rogue DHCP servers

Explanation: DHCP snooping can be used to prevent rogue DHCP servers from providing incorrect IP addresses and other network configuration parameters to devices on the network. This can help to prevent unauthorized devices from accessing the network and causing network connectivity issues.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# ip dhcp snooping switch(config)# ip dhcp snooping vlan <vlan-id> switch(config)# interface <interface> switch(config-if)# ip dhcp snooping trust
HPE/Aruba	ip dhcp snooping ip dhcp snooping vlan <vlan-id> interface <interface> ip dhcp snooping trust
Juniper	set protocols dhcp-snooping vlan all set interfaces <interface> unit <unit> family <inet/inet6> dhcp-snooping
Extreme	configure dhcp-snooping vlan all enable configure ports <interface> dhcp-snooping end
Fortinet	config switch-controller dhcp-snooping set status enable end

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Implement ARP Inspection to prevent ARP spoofing attacks

Explanation: ARP inspection can be used to prevent ARP spoofing attacks by comparing ARP request and reply packets to a pre-configured binding table to ensure that they match. This can help to prevent unauthorized devices from accessing the network and causing network connectivity issues.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# ip arp inspection vlan <vlan-id> switch(config)# interface <interface> switch(config-if)# ip arp inspection trust
HPE/Aruba	ip arp inspection vlan <vlan-id> interface <interface> ip arp inspection trust
Juniper	set protocols arp-inspection vlan <vlan-id> set interfaces <interface> unit <unit> family <inet/inet6> arp-inspection
Extreme	configure arp-inspection enable end
Fortinet	config switch-controller arp-inspection set status enable end

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Implement STP (Spanning Tree Protocol) security features

Explanation: STP is a network protocol that is used to prevent loops in a network. However, it can also be used to prevent unauthorized devices from causing network loops. Implementing STP security features such as BPDU Guard, Root Guard, and Loop Guard can help to prevent unauthorized devices from accessing the network and causing network connectivity issues.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# spanning-tree portfast default switch(config)# spanning-tree bpduguard default switch(config)# interface <interface> switch(config-if)# spanning-tree guard root
HPE/Aruba	spanning-tree portfast default spanning-tree bpduguard default interface <interface> spanning-tree guard root
Juniper	set protocols rstp interface <interface> edge set protocols rstp interface <interface> bpdu-block-on-edge set protocols rstp interface <interface> rstp-protection
Extreme	configure ports <interface> spanning-tree protect end
Fortinet	config switch-controller stp-settings set bpdu-guard enable set root-guard enable set loop-guard enable end

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Implement Port Security to limit the number of MAC addresses on a port

Explanation: Port security can be used to limit the number of MAC addresses that are allowed to access a port on the switch. This can help to prevent unauthorized devices from accessing the network and causing network connectivity issues.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# interface <interface> switch(config-if)# switchport port-security switch(config-if)# switchport port-security maximum <number-of-mac-addresses> switch(config-if)# switchport port-security mac-address <mac-address>
HPE/Aruba	interface <interface> switchport port-security switchport port-security maximum <number-of-mac-addresses> switchport port-security mac-address <mac-address>
Juniper	set interfaces <interface> unit <unit> family <inet/inet6> port-security set interfaces <interface> unit <unit> family <inet/inet6> port-security mac-limit <number-of-mac-addresses> set interfaces <interface> unit <unit> family <inet/inet6> port-security mac-limit-action
Extreme	configure ports <interface> port-security mac-address <mac-address> end
Fortinet	config switch-controller security-policy edit <policy-id> config mac-address-table edit <mac-address> set vlan <vlan-id> set port <interface> end end

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Implement DHCP Option 82 to provide additional information about clients

Explanation: DHCP Option 82 can be used to provide additional information about clients such as their switch port and VLAN. This can help to provide additional security by allowing the network administrator to identify the location of a client.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# ip dhcp relay information option switch(config)# interface <interface> switch(config-if)# ip dhcp relay information option vlan-add
HPE/Aruba	ip dhcp relay information option interface <interface> ip dhcp relay information option vlan-add
Juniper	set system services dhcp-local-server option 82 set system services dhcp-local-server option 82 vlan <vlan-id> set system services dhcp-local-server option 82 remote-id <remote-id>
Extreme	configure dhcp-relay option 82 end
Fortinet	config switch-controller dhcp-snooping set option82 enable end

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Implement Loop Prevention Protocols (STP, RSTP, MSTP)

Explanation: Loop prevention protocols such as STP, RSTP, and MSTP can be used to prevent loops in the network. This can help to prevent network connectivity issues and improve network performance.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# spanning-tree mode <mode> switch(config)# spanning-tree <protocol> vlan <vlan-id>
HPE/Aruba	spanning-tree mode <mode> spanning-tree <protocol> vlan <vlan-id>
Juniper	set protocols rstp set protocols mstp
Extreme	configure spanning-tree <protocol> enable end
Fortinet	config switch-controller stp-settings set stp-mode <protocol> end

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Implement 802.1x for port-based network access control

Explanation: 802.1x is a standard for port-based network access control which provides a way to authenticate users before allowing them access to the network. This can help to prevent unauthorized devices from accessing the network and causing network connectivity issues.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# aaa new-model switch(config)# radius-server host <server-ip> key <secret-key> switch(config)# aaa authentication dot1x default group radius switch(config)# interface <interface> switch(config-if)# dot1x pae authenticator
HPE/Aruba	aaa new-model radius-server host <server-ip> key <secret-key> aaa authentication dot1x default group radius interface <interface> dot1x pae authenticator
Juniper	set system radius-server <server-ip> secret <secret-key> set system radius-server <server-ip> source-address <source-address> set protocols dot1x authenticator interface <interface>
Extreme	configure dot1x <protocol> enable end
Fortinet	config switch-controller dot1x set auth-server <server-ip> set auth-port <port-number> set auth-secret <secret-key> set auth-protocol <protocol> end

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Implement Access Control Lists (ACLs)

Explanation: Access Control Lists (ACLs) can be used to control access to the network based on IP addresses, protocols, and ports. This can help to prevent unauthorized devices from accessing the network and causing network connectivity issues.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# access-list <name> <permit/deny> <source> <destination> <protocol> <source-port> <destination-port> switch(config)# interface <interface> switch(config-if)# ip access-group <name> in/out
HPE/Aruba	access-list <name> <permit/deny> <source> <destination> <protocol> <source-port> <destination-port> interface <interface> ip access-group <name> in/out
Juniper	set firewall family inet filter <name> term <term-name> from source-address <source-address> set firewall family inet filter <name> term <term-name> from destination-address <destination-address> set firewall family inet filter <name> term <term-name> then <action> set interfaces <interface> unit <unit> family inet filter input <name>
Extreme	configure access-list <name> <permit/deny> <source> <destination> <protocol> <source-port> <destination-port> configure ports <interface> access-list <name> end
Fortinet	config firewall address edit <name> set subnet <source-address> <mask> set type <ipv4/ipv6> end config firewall policy edit <policy-id> set srcintf <interface> set dstintf <interface> set srcaddr <name> set dstaddr <name> set action <action> end

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Implement VLAN Access Control Lists (VACLs)

Explanation: VLAN Access Control Lists (VACLs) can be used to control access to the network based on VLANs, IP addresses, protocols, and ports. This can help to prevent unauthorized devices from accessing the network and causing network connectivity issues.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# vlan access-map <name> <permit/deny> <vlan> <match> <action> switch(config)# interface <interface> switch(config-if)# switchport access vlan <vlan-id> switch(config-if)# switchport voice vlan <vlan-id> switch(config-if)# switchport mode access
HPE/Aruba	vlan access-map <name> <permit/deny> <vlan> <match> <action> interface <interface> switchport access vlan <vlan-id> switchport voice vlan <vlan-id> switchport mode access
Juniper	set vlans <vlan-name> vlan-id <vlan-id> set vlans <vlan-name> l3-interface <interface> set firewall family ethernet-switching filter <name> term <term-name> from vlan <vlan-name> set firewall family ethernet-switching filter <name> term <term-name> then <action>
Extreme	configure vlan <vlan-name> <vlan-id> configure vlan <vlan-name> add <interface> configure vlan <vlan-name> ip <ip-address> <mask> configure vlan <vlan-name> ip <ip-address> <mask> <interface> configure ports <interface> vlan <vlan-id> end
Fortinet	config vlan edit <vlan-name> set vlanid <vlan-id> set interface <interface> end config firewall vlan-group edit <name> config vlans edit <vlan-name> end end config firewall policy edit <policy-id> set srcintf <interface> set dstintf <interface> set srcaddr <name> set dstaddr <name> set action <action> end

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Implement Port Security

Explanation: Port security can be used to control access to the network based on MAC addresses. This can help to prevent unauthorized devices from accessing the network and causing network connectivity issues.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# interface <interface> switch(config-if)# switchport port-security switch(config-if)# switchport port-security maximum <number> switch(config-if)# switchport port-security violation <protect/restrict/shutdown> switch(config-if)# switchport port-security mac-address <mac-address>
HPE/Aruba	interface <interface> switchport port-security switchport port-security maximum <number> switchport port-security violation <protect/restrict/shutdown> switchport port-security mac-address <mac-address>
Juniper	set interfaces <interface> unit <unit> family ethernet-switching port-security set interfaces <interface> unit <unit> family ethernet-switching port-security maximum-mac-count <number> set interfaces <interface> unit <unit> family ethernet-switching port-security mac-move-limit <number>
Extreme	configure ports <interface> port-security enable end
Fortinet	config switch-controller security-policy edit <name> config ports edit <interface> set action <action> set aging-time <time> set max-mac-count <count> set violation <violation> end end

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Implement DHCP Snooping

Explanation: DHCP snooping can be used to prevent DHCP spoofing attacks by only allowing DHCP messages from authorized DHCP servers. This can help to prevent unauthorized devices from accessing the network and causing network connectivity issues.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# ip dhcp snooping switch(config)# ip dhcp snooping vlan <vlan-id> switch(config)# interface <interface> switch(config-if)# ip dhcp snooping trust
HPE/Aruba	ip dhcp snooping ip dhcp snooping vlan <vlan-id> interface <interface> ip dhcp snooping trust
Juniper	set protocols dhcp-relay interface <interface> set protocols dhcp-relay server <server-ip> set protocols dhcp-relay traceoptions flag all
Extreme	configure dhcp-snooping <vlan> enable end
Fortinet	config switch-controller dhcp-snooping set vlan <vlan-id> set trusted-port <interface> end

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Implement STP (Spanning Tree Protocol)

Explanation: STP can be used to prevent loops in the network by shutting down redundant links in the network. This can help to prevent network congestion and network connectivity issues.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# spanning-tree mode <mode> switch(config)# spanning-tree <mode> <interface> switch(config)# interface <interface> switch(config-if)# spanning-tree <mode> <interface>
HPE/Aruba	spanning-tree mode <mode> spanning-tree <mode> <interface> interface <interface> spanning-tree <mode> <interface>
Juniper	set protocols rstp set interfaces <interface> unit <unit> family ethernet-switching port-mode <mode>
Extreme	configure stp <mode> configure stp <mode> <interface> configure ports <interface> stp end
Fortinet	config switch-controller stp set mode <mode> set stp-priority <priority> end

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Implement LLDP (Link Layer Discovery Protocol)

Explanation: LLDP can be used to discover information about other devices on the network, such as device type, capabilities, and IP address. This can help to identify and troubleshoot network connectivity issues.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# lldp run switch(config)# interface <interface> switch(config-if)# lldp transmit switch(config-if)# lldp receive
HPE/Aruba	lldp run interface <interface> lldp transmit lldp receive
Juniper	set protocols lldp interface <interface> set protocols lldp interface <interface> disable
Extreme	configure lldp <interface> enable end
Fortinet	config switch-controller lldp set interface <interface> end

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Implement LLDP-MED (Link Layer Discovery Protocol – Media Endpoint Discovery)

Explanation: LLDP-MED can be used to discover information about other devices on the network, such as device type, capabilities, and IP address. This can help to identify and troubleshoot network connectivity issues.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# lldp run switch(config)# lldp med switch(config)# interface <interface> switch(config-if)# lldp transmit switch(config-if)# lldp receive
HPE/Aruba	lldp run lldp med interface <interface> lldp transmit lldp receive
Juniper	set protocols lldp interface <interface> set protocols lldp interface <interface> disable set protocols lldp-med interface <interface> set protocols lldp-med interface <interface> disable
Extreme	configure lldp-med <interface> enable end
Fortinet	config switch-controller lldp-med set interface <interface> end

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Implement Syslog

Explanation: Syslog is a message-logging protocol that can be used to log system messages and events, such as system errors, security events, and network traffic. This can help to identify and troubleshoot network connectivity issues, as well as provide a record of network activity for compliance and security purposes.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# logging <ip-address> switch(config)# logging trap <level> switch(config)# logging on
HPE/Aruba	logging <ip-address> logging trap <level> logging on
Juniper	set system syslog host <ip-address> set system syslog file <filename> <level>
Extreme	configure syslog <ip-address> enable end
Fortinet	config system global set syslog-servers <ip-address> end

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Implement SNMP (Simple Network Management Protocol)

Explanation: SNMP can be used to monitor and manage network devices, such as switches, routers, and servers. This can help to identify and troubleshoot network connectivity issues, as well as provide a record of network activity for compliance and security purposes.

Code Sample:

Vendor Name	Code Block
Cisco	switch(config)# snmp-server community <community-string> ro switch(config)# snmp-server host <ip-address> <community-string>
HPE/Aruba	snmp-server community <community-string> ro snmp-server host <ip-address> <community-string>
Juniper	set snmp community <community-string> set snmp trap-group <group-name> targets <ip-address>
Extreme	configure snmp <ip-address> enable end
Fortinet	config switch-controller snmp set community <community-string> set host <ip-address> end

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Implement VPN (Virtual Private Network)

Explanation: Implementing a VPN can provide secure remote access to the network for employees, partners, and vendors. This can help to protect sensitive data from unauthorized access and provide an additional layer of security for the network.

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Implement NAC (Network Access Control)

Explanation: Implementing NAC can help to control access to the network based on user identity, device type, and device compliance. This can help to prevent unauthorized access to the network and protect sensitive data from unauthorized access.

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Implement DDoS (Distributed Denial of Service) Mitigation

Explanation: Implementing DDoS mitigation can help to protect the network from DDoS attacks, which can cause network congestion and connectivity issues. This can help to ensure that the network remains available and accessible to authorized users.

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Implement IDS/IPS (Intrusion Detection and Prevention System)

Explanation: Implementing an IDS/IPS can help to detect and prevent network intrusions and attacks. This can help to protect the network from unauthorized access and protect sensitive data from unauthorized access.

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Implement Regular Security Audits and Vulnerability Scans

Explanation: Regular security audits and vulnerability scans can help to identify and remediate security vulnerabilities on the network. This can help to protect the network from unauthorized access and protect sensitive data from unauthorized access.