Kentik

DECEMBER 13, 2021

This is sort of a long shot, but are you using a corporate DNS server? You might try temporarily switching to a public DNS like Google’s 8.8.8.8. DNS lookups can introduce significant latency on new connections. Notice above that the routers used in the connection are looking pretty snappy.

Application 95

Application DNS Routers Server 95

The Network DNA

JULY 9, 2024

Replacing cEdge in Cisco SDWAN environment Replacing the cEdge router with another cEdge through an RMA process for Cisco SDWAN , we need to put the basic configuration on the new RMA router and should be reachable via vManage. It is important that you should know the new router serial number should be learned to vManage NMS.

Routers 52

Routers IP Address MPLS WAN 52

Kentik

AUGUST 3, 2021

For example, some DevOps teams feel that AWS is more ideal for infrastructure services such as DNS services and load balancing. This is because much like an on-premises network, each cloud is a restricted network full of routers, switches and servers that can stretch the entire globe.

Cloud 124

Cloud Network Networking Gateway 124

Kentik

MAY 8, 2023

TCP/IP is one of the fundamental networking protocols and the basis for common protocols like HTTP. IP address abstraction and failover capabilities with DNS Domain Name System (DNS) is a system for mapping domain names to IP addresses.

Network 52

Network Networking IP Address TCP 52

DoorDash Engineering

JANUARY 16, 2024

Internal Envoy routers allow communication between the global cell and replicated cells. Custom multi-cluster service discovery: Our custom service discovery solution, DoorDash data center Service Discovery, or DDSD, provides a custom DNS domain to support multi-cluster communication.

Cloud 84

Cloud IP Address DNS Routers 84

Kentik

MARCH 13, 2019

A common DDoS mitigation technique is Remotely-Triggered Black Hole (RTBH), which requires extensive pre-configuration of discard routes and/or uRPF on all edge routers. For destination-based RTBH, the victim’s destination IP address becomes completely unreachable. The mitigation actually “completes the attack.” Action Type.

IP Address 49

IP Address Port Routers DNS 49

The Network DNA

NOVEMBER 26, 2024

Cisco ASA in a Network Configuring DHCP, AAA, and SSH NDNA-ASA(config)# dhcpd address 10.10.10.3-10.10.10.100 10.10.10.100 inside NDNA-ASA(config)# dhcpd dns 112.110.112.5 NDNA-ASA(config)# dhcpd option 3 ip 10.10.10.1 Cisco ASA in a Network Configuring DHCP, AAA, and SSH NDNA-ASA(config)# dhcpd address 10.10.10.3-10.10.10.100

Firewall 52

Firewall IP Address VPN Port 52

CATO Networks

JUNE 23, 2019

The infamous malware that crippled global DNS provider Dyn, French Web host OVH and security journalist Brain Krebs Web site with botnets of infected home routers, baby monitors and other IoT devices is now infecting enterprise network equipment, according to a recent Palo Alto Networks blog and Network Computing article.

IoT 52

IoT WAN Routers IP Address 52

Kentik

MARCH 28, 2016

To make it work, routers were equipped to read packet headers and use field values to group the packets. Starting with the basic ACLs of the mid 90s, the first flow fields added were IP addresses, ports, and protocol. What about capturing MAC address, or VLAN tag, or IPv6? More of a good thing.

Protocol 40

Protocol Routers MPLS IP Address 40

Kentik

MARCH 6, 2017

The Akamai report identifies these top infrastructure attack vectors as UDP fragmentation, Domain Name Service (DNS) reflection, and Network Time Protocol (NTP) reflection. These limits cause suboptimal detection due to: Monitoring ranges of IP addresses rather than individual IPs.

IoT 40

IoT DNS IP Address Server 40

CATO Networks

APRIL 19, 2017

SD-WANs start to address some of these challenges by segmenting the WAN at layer three (actually, layer 3.5, The SD-WAN nodes in each location map VLANs or IP address ranges to the IPsec tunnels (the overlays) based on customer-defined policies. but lets not get picky) with multipoint IPsec tunnels.

WAN 40

WAN MPLS Wide Area Network Firewall 40

Kentik

FEBRUARY 22, 2018

As an example of what can happen, the Mirai malware set loose in late 2016 created a botnet of IoT devices that included ordinary consumer devices such as security cameras, routers, and other home use IoT devices purposely designed to take websites and entire networks offline. The scale of the initial Mirai-based attack was eye-opening.

IoT 40

IoT Advertising Internet Network 40

Kentik

JUNE 5, 2023

A mis-origination occurs when an AS originates (announces with its ASN as the origin) a new advertisement of a route to an IP address block over which it does not possess legitimate control, consequently soliciting traffic destined to those IP addresses.

IP Address 145

IP Address DNS Internet Routers 145

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).

Cloud 116

Cloud TCP Routers Protocol 116