Background
In an effort to deliver the best products to our customers, Digi is transitioning from WR Series cellular routers that use the SarOS operating system to IX Series cellular routers that use the DAL operating system. Since introducing our first DAL-based Industrial Series (IX) product in 2018, the IX14, we have subsequently introduced the IX10, IX15, IX20, IX30, LR54, TX54, and TX64 that also use DAL. SarOS is a 20+ year old operating system that has reached its technology limitations. DAL is a proven, enterprise grade router operating system with improved security and stability, and based on Linux that DIGI has been using on our Enterprise (EX) Series for many years.
Below is a short list of DAL features and functionality that expand the capabilities of SarOS based products:
IPv6 Support |
LDAP user authentication |
Dual APN (aka split-tunnel connectivity) |
WAN load-balancing |
Automatic APN search (Zero Touch Provisioning) |
Ability to run native Linux applications
|
Improvements to DIGI SureLinkTM
|
Common UX with unified platform, across EX, TX, and IX product lines
|
Secure Boot and other DIGI TrustFenceTM features
|
Improved Wi-Fi Client and AP support
|
See table below for list of affected part numbers and recommended replacements.
- WR11XT and WR21-MxxB have equivalent IX product replacements.
- WR21-R products utilize GSM-R and are sold in Europe. GSM-R is an older technology and Digi is discontinuing new product availability with GSM-R. The modem for the WR21-R32A-DE1-TB is no longer available.
Product Line
|
EOL Part Numbers
|
Recommended Replacement
|
WR11XT
|
WR11-L700-DE1-XB
WR11-M300-DE1-XB
WR11-M400-DE1-XB
WR11-M600-DE1-XB
WR11-M900-DE1-XB
|
IX10-00G4
|
WR21
|
WR21-M52B-DE1-SB
WR21-M72B-DE1-SB
WR21-R52A-DE1-TB
WR21-R32A-DE1-TB
|
IX20-00G4 (Global)
IX20-00N4 (AT&T FirstNet)
|
WR31 |
WR31-M82A-DE1-TB
WR31-L92A-DE1-TB
WR31-M52A-DE1-TB
WR31-M72A-DE1-TB
WR31-M22A-DE1-TB
WR31-D52A-DE1-TB
|
IX30-00P7 (AT&T FirstNet)
IX30-00G4 (Global)
IX30-00A4 (Australia) |
All remaining WR44R products are being replaced by a more capable TX54 product line.
Product Line |
SKU |
Upgrade to |
WR44R |
WR44-L900-AE1-RF |
TX54-A106 or TX54-A146 |
WR44-L9F1-AE1-RF |
WR44-M2F1-NE1-RF |
WR44-M700-CE1-RF |
WR44-M800-AE1-RF |
WR44-M8F1-AE1-RF |
WR44-U5A3-D15-XD |
Product Line |
SKU |
Upgrade to |
WR44RR |
WR44-L9G4-AE1-MC |
TX64-R210 (5G)
or
TX54 SKU |
WR44-L9G4-AE1-MD |
WR44-M8G4-AE1-MD |
WR44-00G4-CE1-MC |
Differences between WR-series vs IX- and TX- series firmware
The following is a list of key feature differences between the SarOS firmware that runs on WR11/WR21/WR31/WR44R/WR44RR products versus the new DAL firmware that runs on IX10/IX20/IX30/TX54/TX64/TX64 5G Rail products and additional Digi cellular routers.
Meet the Digi Accelerated Linux Operating System
= supported
= not supported
= coming in a future firmware release
Feature
|
SarOS
|
DAL
|
IPv6 support (dual-stack, cellular, Wi-Fi, Ethernet, VPN, Surelink tests)
|
(Ethernetonly)
|
|
Dual APN (aka split-tunnel) connectivity
|
|
|
Automatic APN search (Zero Touch Provisioning)
|
|
|
Improvements to DIGI SureLinkTM
|
|
|
Secure Boot and other DIGI TrustFenceTM features
|
|
|
WAN load-balancing
|
|
|
Ability to run native Linux applications and shell scripts
|
|
|
Common UX with unified platform, across EX, TX, and IX product lines
|
|
|
Firewall zones
|
|
|
Cisco Umbrella web content filtering
|
|
|
NTP authentication/broadcast
|
|
|
Serial AT modem emulation
|
|
|
Serial to multiple outbound TCP hosts with a configurable socket ID
|
|
(supports multiple UDP hosts)
|
Multiple/concurrent inbound TCP connections to serial port(s)
|
|
|
Web based serial access
|
|
|
Digi RealPort
|
|
|
DIA python framework
|
|
|
Wi-Fi bridged client
|
|
|
Wi-Fi roaming and background scanning
|
|
|
Wi-Fi WPA3 encryption
|
|
|
PPTP tunnels
|
|
|
Send GRE keepalives
|
|
auto-responds to GRE keepalives
|
Stateful route inspection
inspect protocol-layer traffic flowing through device and take Surelink-like actions
|
|
packet analyzer available, along with custom firewall scripting
|
Install python modules via pip
|
|
|
DMVPN spoke |
|
does not support NHRP authentication
|
Resources
Below is a video presenting the key differences and improvements between SarOS and DAL OS:
Migrating from Digi WR21 to the Digi IX20 Industrial Cellular Router
Below is a conversion tool for translating a WR-series configuration into configuring a IX- and TX- series router:
Digi Router Migration Tool - SarOS to DAL
If you require assistance with a single configuration section or are having an issue in configuring your new Digi IX- and TX- series router, please contact Digi Tech Support. Support personnel will be able to provide guidance on setup and configuration.
If you need more extensive configuration assistance and migration support, Digi's Professional Services team can provide a quote for services. Professional Services offers the ability to build a full working DAL configuration from your current router's setup. Also, we can assist in implementation, provide application development, as well as site surveys and recommendations for successful deployment.
DAL release notes
Disclaimers
Last updated:
Jul 10, 2024