Network Engineering

SEPTEMBER 12, 2023

Starting from the following network topology: Internet ISP Cable Router Firewall Router rest of the network / multiple VLANs (port forwarding) | DMZ I had to expose two VLANs over the internet through VPN for two groups of users. what is the recommended way of achieving what I want to do?

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The Network DNA

JULY 31, 2024

CCNA: IP Routing (Communication between two different networks) In this article, we are going to talk about IP routing which is a process of communication between two different networks. Here well see how a layer 3 switch or a router transmit packets between different networks using the layer 3 destination address.

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Network Engineering

AUGUST 19, 2020

The problem is that when ESXi is down it takes down all the network with it, so I have to boot up another router to log in to it. edit1: This is a mockup of current/future network. ip dhcp pool mgmt network 10.0.0.0 default-router 10.0.0.1 domain-name LAN ip dhcp pool trusted network 10.0.10.0

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Packet Pushers

JUNE 20, 2022

The same FortiGate NGFW appliance includes networking capabilities including a router, SD-WAN, ZTNA, and a LAN controller. The same FortiGate NGFW appliance includes networking capabilities including a router, SD-WAN, ZTNA, and a LAN controller.

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LAN WAN Firewall Routers 52

Network Engineering

JULY 17, 2024

I need help on finalizing the Network Scheme for a Warehouse. They are always connected to same WiFi Network. Current System has 2 different ISP with total 6 wifi access point for 3 each since it's large Warehouse Each ISP has 3 WiFi access points for connectivity. I tried reading for SD-WAN but not sure if it's a good idea.

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Juniper

FEBRUARY 24, 2025

Official Juniper Networks Blogs Enhanced AI-Native routing for private and service provider WAN: the cornerstone of autonomous networking Junipers latest AI-Native routing solution is the culmination of decades of industry leadership and innovation. Our networking roots run deep. Want to reduce power bills by up to 70%?

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WAN Network Networking Routers 76

Kentik

JANUARY 13, 2021

The Network is the Key. The network is down!” — I’m sure you heard that before. Despite your best efforts as a network engineer, network failures happen, and you have to fix them. Network troubleshooting becomes easier if your network is observable. Network Troubleshooting Defined.

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Network Networking TCP Protocol 114

Kentik

MARCH 19, 2020

When more of the workforce shifts to working remotely, it puts new and different strains on the infrastructure across different parts of the network, especially where VPN gateways connect to the network edge. This could mean the users are saturating the internet connectivity or that they’ve saturated the LAN (or maybe WAN).

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VPN Network Networking Gateway 69

NW Kings

FEBRUARY 24, 2025

Whereas, the job growth of Network Security Engineers is projected to be 33% from 2023 to 2033, according to the Bureau of Labor Statistics. If you want to begin a solid career in networking then the Cisco Certified Network Associate (CCNA) is the best certification to start with. Its time to upgrade. According to the U.S.

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IP Address Engineering LAN Network 52

The Network DNA

JULY 5, 2024

Introduction to VXLAN MP-BGP EVPN Route Types Before we start with the route types lets talk about the EVPN, EVPN (Ethernet Virtual Private Network), enables virtualized Ethernet communication between various network devices. It operates by using IP plus UDP to travel over the physical network.

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IP Address Ethernet Advertising Unicast 52

Kentik

SEPTEMBER 26, 2016

On May 27 of this year, Gartner Research Director Sanjit Ganguli released a research note titled “Network Performance Monitoring Tools Leave Gaps in Cloud Monitoring.” You’d put a few others — I emphasize “few” because these appliances were and are not cheap — at other major choke points in and out of the network.

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Network Networking Data Centers Server 40

Akins IT

OCTOBER 26, 2001

For example, Network World called 2018 the year of SD-WAN , and before the end of Q3 2018 Gartner declared SD-WAN is killing MPLS. The very first stage of WAN, in the 1980s, used point-to-point (PPP) lines to connect different LANs. MPLS provides dependable network connections protected by SLAs but is expensive and slow to provision.

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Kentik

AUGUST 1, 2016

In particular we’ve learned that speaking or advertising BGP to your service providers and/or peers lets you do two things: Make semi-intelligent routing decisions concerning the best path for a particular route to take outbound from your network (otherwise you would simply set a default route from your border routers into your service providers).

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CATO Networks

MARCH 19, 2018

For the past two years, Cato Networks has led a revolution in enterprise networking: the convergence of software-defined wide area networks ( SD-WAN ) and network security delivered as a single cloud service. For decades, networking and security evolved as silos, creating separate point products in each category.

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WAN Firewall Network Security Internet 52

Kentik

AUGUST 14, 2017

Classifying Network Interfaces Enhances Engineering and Business Insights. Given that Kentik was founded primarily by network engineers, it’s easy to think of our raison d’etre in terms of addressing the day-to-day challenges of network operations. are generated by individual routers, switches, and hosts rather than system wide.

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IP Address Routers Network Networking 40

Network Engineering

JANUARY 27, 2022

In summary: How can I leak a default route to a VRF, such that the traffic goes to the global routing table on the same router, and the next-hop does not need to be statically defined? We plan to have multiple PtP Ethernets for this customer, and a shared VPN for all sites between their LANs and AWS. This is what I've done in GNS3.

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Kentik

JULY 28, 2021

Bad hardware (the switch or router port). Overwhelmed router. Congestion in the form of high-connection utilization or an overworked router in the path is another common source of trouble. TCP traceroute : A TCP trace reaches out to every router in the path to a target destination. Miss-matched duplexing (full vs. half).

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Network Engineering

FEBRUARY 16, 2025

I'm having trouble getting my Cisco router to communicate with a wireless router that connects to the internet. However, the router cannot reach the wireless router. Network Setup: Router (Router) G0/0/0 Internal Network (192.168.1.10/30) 30) G0/1/0 Wireless Router (11.0.0.1/30)

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Network Engineering

FEBRUARY 14, 2025

Scenario: AT&T Fiber Modem/Router configured in IP-PassThrough Mode, with a web UI listening via static IP address 192.168.1.254. Windows PC running on the LAN's private subnet (Windows PC with IP address 192.168.1.10) Question: From the Windows PC, how do I access the web UI of the AT&T Fiber Modem?

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Network Engineering

JANUARY 24, 2025

RFC 7454 ( "BGP Operations and Security" ) says: When a network is present on an IXP and peers with other IXP members over a common subnet (IXP LAN prefix), it SHOULD NOT accept more- specific prefixes for the IXP LAN prefix from any of its external BGP peers. 22 while receiving and accepting 10.81.83.0/24

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The Network DNA

JANUARY 22, 2025

Troubleshooting an IPsec VPN issue on a Palo Alto Networks firewall in 9 steps Step 1# Verify VPN Configuration Check the IPsec Tunnel Settings: Ensure that both sides of the tunnel (Palo Alto firewall and the remote peer) have matching configurations: IKE Version: Verify if IKEv1 or IKEv2 is being used and ensure both ends match.

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