Then use https://asa-firewall/admin in your browser.
Windows 10 is a 64-bit operating system. Modern browsers (Edge, Chrome, Firefox) no longer support NPAPI plugins, meaning the old method of launching ASDM directly inside a browser window is effectively dead. You must use the standalone launcher or Java Web Start.
You must use Microsoft Edge in Internet Explorer mode .
However, installing legacy Java-based applications like ASDM on modern operating systems such as Windows 10 is rarely a "next, next, finish" process. The relationship between Java versions, Windows 10 security features, and ASDM compatibility is fraught with potential errors.
ASDM 7.18 requires ASA code version 9.12(4) or higher . If your ASA runs older code (e.g., 8.4 or 9.8), you cannot use ASDM 7.18. You must first upgrade the ASA image.
show version | include Image show version | include ASDM
| Component | Requirement | | :--- | :--- | | | 9.12(4) or higher | | Windows 10 Build | 20H2 or newer (22H2 recommended) | | Java Version | 11 (OpenJDK or Oracle) – NO Java 8 | | Launch Method | JNLP via Java Web Start (not browser) | | Security Level | Medium in Java CP | | Certificate | Imported to Trusted Root Authorities | | DPI Scaling | Override to System (Enhanced) |
Then use https://asa-firewall/admin in your browser.
Windows 10 is a 64-bit operating system. Modern browsers (Edge, Chrome, Firefox) no longer support NPAPI plugins, meaning the old method of launching ASDM directly inside a browser window is effectively dead. You must use the standalone launcher or Java Web Start.
You must use Microsoft Edge in Internet Explorer mode .
However, installing legacy Java-based applications like ASDM on modern operating systems such as Windows 10 is rarely a "next, next, finish" process. The relationship between Java versions, Windows 10 security features, and ASDM compatibility is fraught with potential errors.
ASDM 7.18 requires ASA code version 9.12(4) or higher . If your ASA runs older code (e.g., 8.4 or 9.8), you cannot use ASDM 7.18. You must first upgrade the ASA image.
show version | include Image show version | include ASDM
| Component | Requirement | | :--- | :--- | | | 9.12(4) or higher | | Windows 10 Build | 20H2 or newer (22H2 recommended) | | Java Version | 11 (OpenJDK or Oracle) – NO Java 8 | | Launch Method | JNLP via Java Web Start (not browser) | | Security Level | Medium in Java CP | | Certificate | Imported to Trusted Root Authorities | | DPI Scaling | Override to System (Enhanced) |