The following table lists the details of SSH v.1 and SSH v.2 in ABB Arctic products. The larger key size in SSH v.2 improves security against brute-force attacks. The supported firmware versions are also listed.
|
Description |
SSH v.1 VPN |
SSH v.2 VPN |
|---|---|---|
|
Considered safe |
No |
Yes |
|
Key size |
1024 |
Min. 2048 |
|
Support for wireless gateways, firmware |
Max. FW 3.3.6 |
Min. FW 2.0.10 |
|
Support for 2G legacy wireless gateways |
All |
None |
|
Support for M2M gateway, firmware |
Max. 4.5.3 (current version) |
Min. 4.1.2 |
All currently sold ABB Arctic devices support SSH v.2. However, the older ABB or Viola models may not do so. The discontinued ABB REC/RER601/603 products, Viola Arctic 2G products and Viola M2M Gateway products (except for version 3.5.2) do not support SSH v.2. In case of these products, it is recommended to replace them with devices from the new ABB Arctic product line that support SSH v.2.