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General| Brand | ELTEX |
|---|---|
| Model | ESR-21 |
| Category | Network Router |
| Language | English |
Lists the key technical specifications for different ESR router models, including interfaces and ports.
Explains the functionality and security aspects of the Command Line Interface for device management.
Explains the process of connecting ESR routers and performing basic configuration, including interface setup and security zones.
Provides a step-by-step procedure for updating the device's operating system firmware using servers like TFTP, FTP, SCP, and SFTP.
Details the process of updating router firmware using the bootloader, including specifying TFTP server and firmware file names.
Describes algorithms and examples for configuring protection against various network attacks like IP spoofing and SYN floods.
Details the configuration algorithm and examples for VLAN setup, including tagged and untagged modes.
Explains GRE tunnel configuration algorithms and provides an example of IP-GRE tunnel setup.
Details DMVPN configuration algorithms and provides examples for HUB and Spoke setups.
Explains L2TPv3 tunnel configuration algorithms and provides an example.
Describes IPsec VPN configuration algorithms and provides examples for route-based, policy-based, and remote access VPNs.
Explains basic QoS configuration, including classification and relabeling on the input interface.
Details advanced QoS configuration, allowing classification on both incoming and outgoing interfaces.
Explains how to add static routes for IPv4 and IPv6, including options like blackhole and unreachable.
Explains OSPF configuration algorithms and provides examples for various scenarios like stub areas and virtual links.
Describes BGP configuration algorithms, including precedence, route-map, and neighbor settings.
Explains VRF configuration algorithms and provides an example for isolating routing information.
Explains LDP configuration algorithms, including global and neighbor session parameters, and provides an example.
Details L2VPN Martini mode configuration, covering VPWS and VPLS scenarios.
Explains L3VPN configuration for combining client IP networks and ensuring traffic transfer within a single VRF.
Describes AAA configuration algorithms for local, RADIUS, TACACS, and LDAP authentication methods.
Details configuration algorithms for logging system events and protecting against various network attacks.
Describes firewall configuration algorithms, rules, and application filtering (DPI).
Explains Access Control List configuration algorithms and provides examples for traffic filtering.
Details IPS/IDS configuration algorithms, rule autoupdate, and basic user rule management.
Explains content filtering service configuration, including creating profiles and blocking access to specific categories.
Details Antispam service configuration for detecting and filtering unwanted email messages.
Describes VRRP configuration algorithms and examples for establishing virtual gateways and redundancy.
Details configuration algorithms and examples for firewall and NAT session failover.
Explains DHCP failover configuration for IP address database reservation and redundancy.
Describes PPTP server configuration for establishing secure connections to corporate networks.
Details L2TP server configuration for supporting virtual private networks.
Explains OpenVPN server configuration for secure remote access and data transmission.
Details PPPoE client configuration for establishing virtual connections.
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