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  • SD-WAN Zero-Touch Provisioning (ZTP)

    Archives

    SD-WAN Zero-Touch Provisioning (ZTP)

    How does Zero-Touch Provisioning work? SD-WAN devices are assigned by Cisco to the Smart Account and Virtual Account of customer. This is reflected in Plug and Play connect portal (PnP). In the background, the SDWAN cloud provisioning process assigns the identity of the customer organization and starts the sd-wan controllers provisioning. After device unboxing router […]

    Date: 22.03.2020

    Author: Marcin Bialy

    SD-WAN Bidirectional Forwarding Detection (BFD)

    The BFD (Bidirectional Forwarding Detection) is a protocol that detects link failures as part of the Cisco SD-WAN (Viptela) high availability solution, is enabled by default on all vEdge routers, and you cannot disable it. BFD and related parameters: Path liveliness and quality measurement detection protocol: Up/Down, loss/latency/jitter, IPSec tunnel MTU, Runs between all routers in […]

    Date: 22.03.2020

    Author: Marcin Bialy

    SD-WAN Overlay Management Protocol (OMP)

    The Overlay Management Protocol (OMP) is the protocol responsible for establishing and maintaining the Cisco SD-WAN control plane. It provides the following services: Orchestration of overlay network communication, including connectivity among network sites, service chaining, and VPN topologies Distribution of service-level routing information and related location mappings Distribution of data plane security parameters Central control […]

    Date: 22.03.2020

    Author: Marcin Bialy

    Cisco ASA: Cisco Anyconnect configuration

    Technology: FIREWALLS Area: VPN Vendor: CISCO Software: CISCO ADAPTIVE SECURITY APPLIANCE (ASA) , ASA-OS Platform: CISCO ASA 5500, 5500-X     Cisco Anyconnect Secure Mobility Client is a software user-friendly application which creates a VPN tunnel with a VPN head end. Anyconnet by default uses SSL protocol to encrypt packets (can use also ikev2 / […]

    Date: 17.12.2017

    Author: Marcin Bialy

    DMVPN Phase 3 Single Hub – OSPF – Spoke example

    Traffic Flow: Packet is sent from Spoke’s 1 network to Spoke’s 2 network via Hub (according to routing table) Hub routes packet to Spoke2 but in parallel sends back the NHRP Redirect message to Spoke1 containing information about suboptimal path to Spoke2 and tunnel IP of Spoke2 Spoke1 then issues the NHRP Resolution request of […]

    Date: 16.08.2017

    Author: Marcin Bialy

    DMVPN Phase 3 Single Hub – OSPF – Hub example

    Traffic Flow: Packet is sent from Spoke’s 1 network to Spoke’s 2 network via Hub (according to routing table) Hub routes packet to Spoke2 but in parallel sends back the NHRP Redirect message to Spoke1 containing information about suboptimal path to Spoke2 and tunnel IP of Spoke2 Spoke1 then issues the NHRP Resolution request of […]

    Date: 16.08.2017

    Author: Marcin Bialy

    DMVPN Phase 3 Single Hub – EIGRP – Spoke example

    Traffic Flow: Packet is sent from Spoke’s 1 network to Spoke’s 2 network via Hub (according to routing table) Hub routes packet to Spoke2 but in parallel sends back the NHRP Redirect message to Spoke1 containing information about suboptimal path to Spoke2 and tunnel IP of Spoke2 Spoke1 then issues the NHRP Resolution request of […]

    Date: 16.08.2017

    Author: Marcin Bialy

    DMVPN Phase 3 Single Hub – EIGRP – Hub example

    Traffic Flow: Packet is sent from Spoke’s 1 network to Spoke’s 2 network via Hub (according to routing table) Hub routes packet to Spoke2 but in parallel sends back the NHRP Redirect message to Spoke1 containing information about suboptimal path to Spoke2 and tunnel IP of Spoke2 Spoke1 then issues the NHRP Resolution request of […]

    Date: 16.08.2017

    Author: Marcin Bialy

    DMVPN Phase 2 Single Hub – EIGRP – Spoke example

    Traffic Flow: Packet is intended to be sent from Spoke1 to Spoke2 network According to routing table Spoke’s2 network is known via its original next hop but it is marked in CEF as incomplete and next hop IP is marked simultaneously as CEF glean adjacency / punt (now, need to perform NHRP resolution) – the […]

    Date: 16.08.2017

    Author: Marcin Bialy

    DMVPN Phase 2 Single Hub – EIGRP – Hub example

    Traffic Flow: Packet is intended to be sent from Spoke1 to Spoke2 network According to routing table Spoke’s2 network is known via its original next hop but it is marked in CEF as incomplete and next hop IP is marked simultaneously as CEF glean adjacency / punt (now, need to perform NHRP resolution) – the […]

    Date: 16.08.2017

    Author: Marcin Bialy
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