Prisma SD-WAN
Prisma SD-WAN DNS Use Cases
Table of Contents
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Prisma SD-WAN Docs
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- Prisma SD-WAN Key Elements
- Prisma SD-WAN Releases and Upgrades
- Use Copilot in Prisma SD-WAN
- Prisma SD-WAN Summary
- Prisma SD-WAN Application Insights
- Device Activity Charts
- Site Summary Dashboard
- Prisma SD-WAN Predictive Analytics Dashboard
- Prisma SD-WAN Link Quality Dashboard
- Prisma SD-WAN Subscription Usage
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- Add a Branch
- Add a Data Center
- Add a Branch Gateway
- Secure Group Tags (SGT) Propagation
- Configure Circuits
- Configure Internet Circuit Underlay Link Aggregation
- Configure Private WAN Underlay Link Quality Aggregation
- Configure Circuit Categories
- Configure Device Initiated Connections for Circuits
- Add Public IP LAN Address to Enterprise Prefixes
- Manage Data Center Clusters
- Configure Secure SD-WAN Fabric Tunnels between Data Centers
- Configure a Site Prefix
- Configure Ciphers
- Configure a DHCP Server
- Configure NTP for Prisma SD-WAN
- Configure the ION Device at a Branch Site
- Configure the ION Device at a Data Center
- Switch a Site to Control Mode
- Allow IP Addresses in Firewall Configuration
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- Configure a Controller Port
- Configure Internet Ports
- Configure WAN/LAN Ports
- Configure a Sub-Interface
- Configure a Loopback Interface
- Add and Configure Port Channel Interface
- Configure a PoE Port
- Configure and Monitor LLDP Activity and Status
- Configure a PPPoE Interface
- Configure a Layer 3 LAN Interface
- Configure Application Reachability Probes
- Configure a Secondary IP Address
- Configure a Static ARP
- Configure a DHCP Relay
- Configure IP Directed Broadcast
- VPN Keep-Alives
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- Configure Prisma SD-WAN IPFIX
- Configure IPFIX Profiles and Templates
- Configure and Attach a Collector Context to a Device Interface in IPFIX
- Configure and Attach a Filter Context to a Device Interface in IPFIX
- Configure Global and Local IPFIX Prefixes
- Flow Information Elements
- Options Information Elements
- Configure the DNS Service on the Prisma SD-WAN Interface
- Configure SNMP
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- Prisma SD-WAN Branch Routing
- Prisma SD-WAN Data Center Routing
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- Configure an OSPF in Prisma SD-WAN
- Enable BGP for Private WAN and LAN
- Configure BGP Global Parameters
- Global or Local Scope for BGP Peers
- Configure a Route Map
- Configure a Prefix List
- Configure an AS Path List
- Configure an IP Community List
- View Routing Status and Statistics
- Distribution to Fabric
- Host Tracking
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- Configure Multicast
- Create, Assign, and Configure a WAN Multicast Configuration Profile
- Configure Global Multicast Parameters
- Configure a Multicast Static Rendezvous Point (RP)
- Learn Rendezvous Points (RPs) Dynamically
- View LAN Statistics for Multicast
- View WAN Statistics for Multicast
- View IGMP Membership
- View the Multicast Route Table
- View Multicast Flow Statistics
- View Routing Statistics
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- Prisma SD-WAN Branch HA Key Concepts
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- Configure Branch HA with Gen-1 Platforms (2000, 3000, 7000, and 9000)
- Configure Branch HA with Gen-2 Platforms (3200, 5200, and 9200)
- Configure Branch HA with Gen-2 Embedded Switch Platforms (1200-S or 3200-L2)
- Configure Branch HA for Devices with Software Cellular Bypass (1200-S-C-5G)
- Configure Branch HA for Platforms without Bypass Pairs
- Configure Branch HA in a Hybrid Topology with Gen-1 (3000) and Gen-2 (3200) Platforms
- Configure HA Groups
- Add ION Devices to HA Groups
- Edit HA Groups and Group Membership
- Prisma SD-WAN Clarity Reports
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CloudBlade Integrations
- CloudBlade Integrations
- CloudBlades Integration with Prisma Access
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- clear app-engine
- clear app-map dynamic
- clear app-probe prefix
- clear connection
- clear device account-login
- clear dhcplease
- clear dhcprelay stat
- clear flow and clear flows
- clear flow-arp
- clear qos-bwc queue-snapshot
- clear routing
- clear routing multicast statistics
- clear routing ospf
- clear routing peer-ip
- clear switch mac-address-entries
- clear user-id agent statistics
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- arping interface
- curl
- ping
- ping6
- debug bounce interface
- debug bw-test src-interface
- debug cellular stats
- debug controller reachability
- debug flow
- debug ipfix
- debug log agent eal file log
- debug logging facility
- debug logs dump
- debug logs follow
- debug logs tail
- debug performance-policy
- debug poe interface
- debug process
- debug reboot
- debug routing multicast log
- debug routing multicast pimd
- debug servicelink logging
- debug tcpproxy
- debug time sync
- dig dns
- dig6
- file export
- file remove
- file space available
- file tailf log
- file view log
- ssh6 interface
- ssh interface
- tcpdump
- tcpping
- traceroute
- traceroute6
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- dump appdef config
- dump appdef version
- dump app-engine
- dump app-l4-prefix table
- dump app-probe config
- dump app-probe flow
- dump app-probe prefix
- dump app-probe status
- dump auth config
- dump auth status
- dump banner config
- dump bfd status
- dump bypass-pair config
- dump cellular config
- dump cellular stats
- dump cellular status
- dump cgnxinfra status
- dump cgnxinfra status live
- dump cgnxinfra status store
- dump config network
- dump config security
- dump controller cipher
- dump controller status
- dump device accessconfig
- dump device conntrack count
- dump device date
- dump device info
- dump device status
- dump dhcp-relay config
- dump dhcprelay stat
- dump dhcp-server config
- dump dhcp-server status
- dump dhcpstat
- dump dnsservice config all
- dump dpdk cpu
- dump dpdk interface
- dump dpdk port status
- dump dpdk stats
- dump flow
- dump flow count-summary
- dump interface config
- dump interface status
- dump interface status interface details
- dump interface status interface module
- dump intra cluster tunnel
- dump ipfix config collector-contexts
- dump ipfix config derived-exporters
- dump ipfix config filter-contexts
- dump ipfix config ipfix-overrides
- dump ipfix config prefix-filters
- dump ipfix config profiles
- dump ipfix config templates
- dump lldp
- dump lldp config
- dump lldp info
- dump lldp stats
- dump lldp status
- dump log-agent eal conn
- dump log-agent eal response-time
- dump log-agent eal stats
- dump log-agent config
- dump log-agent iot snmp config
- dump log-agent iot snmp device discovery stats
- dump log-agent ip mac bindings
- dump log-agent neighbor discovery stats
- dump log-agent status
- dump ml7 mctd counters
- dump ml7 mctd session
- dump ml7 mctd version
- dump nat counters
- dump nat6 counters
- dump nat summary
- dump network-policy config policy-rules
- dump network-policy config policy-sets
- dump network-policy config policy-stacks
- dump network-policy config prefix-filters
- dump overview
- dump performance-policy config policy-rules
- dump performance-policy config policy-sets
- dump performance-policy config policy-set-stacks
- dump performance-policy config threshold-profile
- dump poe system config
- dump poe system status
- dump priority-policy config policy-rules
- dump priority-policy config policy-sets
- dump priority-policy config policy-stacks
- dump priority-policy config prefix-filters
- dump probe config
- dump probe profile
- dump radius config
- dump radius statistics
- dump radius status
- dump reachability-probe config
- dump qos-bwc config
- dump reachability-probe status
- dump routing aspath-list
- dump routing cache
- dump routing communitylist
- dump routing multicast config
- dump routing multicast igmp
- dump routing multicast interface
- dump routing multicast internal vif-entries
- dump routing multicast mroute
- dump routing multicast pim
- dump routing multicast sources
- dump routing multicast statistics
- dump routing multicast status
- dump routing ospf
- dump routing peer advertised routes
- dump routing peer config
- dump routing peer neighbor
- dump routing peer received-routes
- dump routing peer routes
- dump routing peer route-via
- dump routing peer status
- dump routing peer route-json
- dump routing prefixlist
- dump routing prefix-reachability
- dump routing route
- dump routing routemap
- dump routing running-config
- dump routing summary
- dump routing static-route reachability-status
- dump routing static-route config
- dump routing vpn host tracker
- dump security-policy config policy-rules
- dump security-policy config policy-set
- dump security-policy config policy-set-stack
- dump security-policy config prefix-filters
- dump security-policy config zones
- dump sensor type
- dump sensor type summary
- dump serviceendpoints
- dump servicelink summary
- dump servicelink stats
- dump servicelink status
- dump site config
- dump snmpagent config
- dump snmpagent status
- dump software status
- dump spoke-ha config
- dump spoke-ha status
- dump standingalarms
- dump static-arp config
- dump static host config
- dump static routes
- dump support details
- dump-support
- dump switch fdb vlan-id
- dump switch port status
- dump switch vlan-db
- dump syslog config
- dump syslog-rtr stats
- dump syslog status
- dump time config
- dump time log
- dump time status
- dump troubleshoot message
- dump user-id agent config
- dump user-id agent statistics
- dump user-id agent status
- dump user-id agent summary
- dump user-id groupidx
- dump user-id group-mapping
- dump user-id ip-user-mapping
- dump user-id statistics
- dump user-id status
- dump user-id summary
- dump user-id useridx
- dump vlan member
- dump vpn count
- dump vpn ka all
- dump vpn ka summary
- dump vpn ka VpnID
- dump vpn status
- dump vpn summary
- dump vrf
- dump waninterface config
- dump waninterface summary
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- inspect app-flow-table
- inspect app-l4-prefix lookup
- inspect app-map
- inspect certificate
- inspect certificate device
- inspect cgnxinfra role
- inspect connection
- inspect dhcplease
- inspect dhcp6lease
- inspect dpdk ip-rules
- inspect dpdk vrf
- inspect fib
- inspect fib-leak
- inspect flow-arp
- inspect flow brief
- inspect flow-detail
- inspect flow internal
- inspect interface stats
- inspect ipfix exporter-stats
- inspect ipfix collector-stats
- inspect ipfix app-table
- inspect ipfix wan-path-info
- inspect ipfix interface-info
- inspect ip-rules
- inspect ipv6-rules
- inspect lqm stats
- inspect memory summary
- inspect network-policy conflicts
- inspect network-policy dropped
- inspect network-policy hits policy-rules
- inspect network-policy lookup
- inspect performance-policy fec status
- inspect policy-manager status
- inspect policy-mix lookup-flow
- inspect priority-policy conflicts
- inspect priority-policy dropped
- inspect priority-policy hits default-rule-dscp
- inspect priority-policy hits policy-rules
- inspect priority-policy lookup
- inspect performance-policy incidents
- inspect performance-policy lookup
- inspect performance-policy hits analytics
- inspect process status
- inspect qos-bwc debug-state
- inspect qos-bwc queue-history
- inspect qos-bwc queue-snapshot
- inspect routing multicast fc site-iface
- inspect routing multicast interface
- inspect routing multicast mroute
- inspect security-policy lookup
- inspect security-policy size
- inspect switch mac-address-table
- inspect system arp
- inspect system ipv6-neighbor
- inspect system vrf
- inspect vrf
- inspect wanpaths
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5.6
- 5.6
- 6.1
- 6.2
- 6.3
- 6.4
- 6.5
- New Features Guide
- On-Premises Controller
- Prisma SD-WAN CloudBlades
- Prisma Access CloudBlade Cloud Managed
- Prisma Access CloudBlade Panorama Managed
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- Features Introduced in Prisma SD-WAN ION Release 5.6
- Changes to Default Behavior in Prisma SD-WAN ION Release 5.6
- Upgrade ION 9000 Firmware for Device Version 5.6.x
- CLI Commands in Prisma SD-WAN ION Release 5.6
- Addressed Issues in Prisma SD-WAN ION Release 5.6
- Known Issues in Prisma SD-WAN ION Release 5.6
Prisma SD-WAN DNS Use Cases
Prisma SD-WAN DNS Service use cases. DNS Service can provide almost
instant DNS resolution to client machines.
Where Can I Use This? | What Do I Need? |
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The following sections provide details
and examples of some common Prisma SD-WAN DNS Service use cases.
- DNS Caching
- Augmentation of Enterprise DNS System
- DNS System for Small Deployments
- Internet-Local Resolution
- Secure DNS (DNSSEC)
- IoT DNS
- DNS Accounting
DNS Caching
DNS Service can provide almost instant DNS resolution
to client machines. This serves to increase perceived application
response and improve the overall user experience.
By default,
the maximum number of cached domains is 150. You may increase this
number by editing the DNS profile or with local DNS service overrides
at the element to a maximum of 10,000 cached DNS records. If you
specify the cache size as 0, DNS caching will be disabled. DNS caching
consumes minimal memory overhead, and you can safely configure the
maximum cache value on all Prisma SD-WAN device models.
Augmentation of Enterprise DNS System
The Prisma SD-WAN DNS Service
does not replace an existing enterprise DNS system but can work
in conjunction to provide local control through centralized management.
The Prisma SD-WAN DNS service can easily augment the enterprise
DNS system by providing site-specific (local) DNS resolution. For
example, the same domain used across the enterprise can be resolved
to a different IP address depending on the client's location performing
the lookup. This allows for a simple yet scalable way to provide
granular control for local resolution.
DNS System for Small Deployments
Acting as an authoritative
DNS server, you may configure the Prisma SD-WAN DNS Service to meet
a small network's needs. The Prisma SD-WAN DNS Service can support
multiple zones acting as an authoritative server while providing
support for all DNS record types.
Internet-Local Resolution
SaaS applications rely upon local DNS resolution
to connect an end user with the closest node for any given application.
In most cases, you can configure the private network machines to
use private centralized DNS servers in a data center or other central
locations. These centralized DNS servers rely on DNS systems upstream
for authoritative information for zones outside of their responsibility.
Consuming
SaaS applications can result in resolution for nodes (local nodes
to the central DNS servers and not the branch office users).
Since
Prisma SD-WAN can configure the DNS Service to send domain name
resolution requests to one set of servers and other domain name
resolution requests to a different set of servers, this solves the
local DNS resolution. This is particularly useful for SaaS applications
that rely on local DNS resolution for optimal node selection.
Secure DNS (DNSSEC)
Secure DNS (DNSSEC) attacks are a standard
method to facilitate the interception of traffic. You may deploy
the Secure DNS (DNSSEC) to mitigate the threat of a DNS-based attack.
DNSSEC adds a layer of trust to DNS by enforcing authentication
through the use of digital signatures. These signatures use public-key
cryptography.
The Prisma SD-WAN DNS Service can act in one
of two DNSSEC modes:
- DNSSEC Proxy—In this operation mode, the Prisma SD-WAN DNS Service will proxy secure DNS requests received from a client to DNS servers configured for lookup. When the upstream DNS server generates responses, the AD (Authenticated DNS) flag in the responses is proxied by the Prisma SD-WAN DNS Service to the client.
- DNSSEC Server—In this operation mode, the Prisma SD-WAN DNS Service will validate DNS replies and cache DNSSEC data. You must add appropriate trust anchors to the configuration to enable this service, and any upstream DNS servers must be capable of handling DNSSEC requests.
IoT DNS
In many cases, outside vendors manage IoT (Internet
of Things) devices and not by the network or application owners.
The Prisma SD-WAN DNS service can control domain name resolution
on a source address basis. This is further secure by combining the
Prisma SD-WAN DNS Services with the Prisma SD-WAN ZBFW.
DNS Accounting
In some environments, both enterprise and carrier,
it must pass specific client metadata to the DNS server for accounting
purposes. You may configure the Prisma SD-WAN DNS Service to send
specific client attributes to the DNS server, including client MAC
address, element name, element ID, and other custom text.