Most of Blackboard Learn is accessible via standard network ports (80 and 443). On occasion Firewalls can become an issue when trying to access Blackboard.
Most of Blackboard Learn is accessible via standard network ports (80 and 443). However, Echo360 and Collaborate access different ports.
If you are behind a firewall, these domains and ports will need to be opened by your network administrators:
Blackboard Learn Application
learn.uark.edu: 80, 443, 8009, 8010, 8011, 8443
Echo360 Videos
multimedia.uark.edu: 8080,8443,443
capture.uark.edu: 8080,8443,443
Blackboard Collaborate
Ports 80, 443, 2187
Since Collaborate uses dynamic server assignment, it is not possible to state in advance precisely which server will host a session. This means the IP Address is known only when the session actually starts. As a result, please ensure firewalls (and proxy systems) allow access to the entire set of Collaborate hosts in the domain elluminate.com and to the following IP Address ranges:•
- 216.220.49.208 with netmask 255.255.255.240 (in CIDR notation: 216.220.49.208/28)
- 65.110.166.160 with netmask 255.255.255.224 (in CIDR notation: 65.110.166.160/27)
- 69.46.102.224 with netmask 255.255.255.224 (in CIDR notation: 69.46.102.224/27)
- 74.200.25.224 with netmask 255.255.255.224 (in CIDR notation 74.200.25.224/27)
- 74.200.26.160 with netmask 255.255.255.224 (in CIDR notation 74.200.26.160/27)
Enabling access to both of the address blocks listed will reduce the impact of any configuration changes that COllaborate might make.
General Collaborate Tips:
Here are a few general steps that you can use to configure your firewall:
- You will need to allow Java Web Start (javaws.exe) access to the internet — this may require both inbound and outbound connections.
- Collaborate may require access separately — you will need to allow this on both inbound and outbound connections as well.
- You may be prompted to allow IeEmbed access to the internet when conducting a Web Tour.