Upgrading ISA Server 2000 Add-in Configuration
Most ISA Server 2000 access policy rules, publishing rules, and IP packet filters are upgraded to ISA Server 2004, as detailed in the following sections.
In ISA Server 2000, application filters were applied unconditionally to specific traffic. In ISA Server 2004, some filtering can be applied on a per-rule basis. The table below describes how ISA Server 2000 application filter functionality is upgraded to ISA Server 2004.
| Application filter/Rule | ISA Server 2000 | ISA Server 2004 |
|---|---|---|
| FTP Access | ISA Server 2000 protocol rules applying to FTP | ISA Server 2004 access rule with the Read only option of FTP filtering disabled |
| ISA Server 2000 protocol rules applying to FTP download | ISA Server 2004 access rule with the Read only option of FTP filtering enabled | |
| ISA Server 2000 protocol rules applying to FTP Server | ISA Server 2004 server publishing rule with the Read only option of FTP filtering disabled | |
| H.323 filter (upgrade is not supported in this beta release) | Allow incoming call | Filter listens on the External network |
| Allow outgoing calls | Filter listens on the Internal network | |
| All other configurations | Same as in ISA Server 2000 | |
| HTTP redirection | All configurations | Not supported |
| RPC filter | All configurations | Replaced with per-rule filtering |
| SMTP filter | SMTP commands | Same as in ISA Server 2000 |
| Attachments / Users and domains / keywords (not supported for this beta release) | upgraded to an SMTP server publishing rule, on a per-rule basis | |
| SOCKS v4 filter (not supported for this beta release) | Enabled | Listen for SOCKS requests initiated from the Internal network |
| Streaming media | MMS filter, PNM Filter and RTSP filter: any configuration | Configuration same as ISA Server 2000. MMS stream splitting is not supported. |
Configuration settings for the following application filters are upgraded directly to ISA Server 2004:
- DNS intrusion detection filter
- POP intrusion detection filter
Some application filter properties are configured differently in ISA Server 2004 than in ISA Server 2000. See New ways to do familiar tasks for more information on how to use ISA Server 2004.
Note that third-party application filters are not upgraded. Similarly, any protocol definitions that are installed with the application filter are not upgraded. Any rules that apply to these protocol definitions are not upgraded.
