Cisco Cisco Media Delivery Engine 1100 model
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Release Notes for Cisco ECDS 2.5
OL-24532-03
Limitations and Restrictions
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IP Spoofing with non-HTTP protocols or multiple Service Engines
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L4 Switch for the bypass gateway.
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Reverse proxy
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RTMP unmanaged domain
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Security proxy
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Show and Share over SSL
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WCCP CIF/FTP/DNS traffic caching
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WCCP Web cache packet return
Limitations and Restrictions
Observe the following limitations and restrictions in this release:
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Cisco ECDS-SRE9x0_RAID0.ova Deployment with vSphere
Make sure that the system from which you deploy the RAID 0.ova file is running natively on hardware,
or is controlled through a remote desktop. There is an issue with deployment if there are nested vSphere
instances in which vSphere is running on the VM controlled through vSphere. In this case the Cisco SRE
VM is deployed using vSphere from a Windows 2008 server VM. The Windows 2008 server VM is
controlled from the console window of another vSphere client, therefore creating a nesting environment
and the deployment fails.
or is controlled through a remote desktop. There is an issue with deployment if there are nested vSphere
instances in which vSphere is running on the VM controlled through vSphere. In this case the Cisco SRE
VM is deployed using vSphere from a Windows 2008 server VM. The Windows 2008 server VM is
controlled from the console window of another vSphere client, therefore creating a nesting environment
and the deployment fails.
HTTP Request Header Size
There is a 4 KB maximum limit for HTTP request headers. This has been added to prevent client-side
attacks, including overflowing buffers in the Web Engine.
attacks, including overflowing buffers in the Web Engine.
NAT Devices
There is no network address translation (NAT) device separating the MDEs from one another.
Cisco ECDS does not support NAT configuration, where one or more MDEs are behind the NAT device
or firewall. If your Cisco ECDS network is behind a firewall, workaround this issue by configuring each
internal and external IP address pair with the same IP address.
or firewall. If your Cisco ECDS network is behind a firewall, workaround this issue by configuring each
internal and external IP address pair with the same IP address.
Cisco ECDS does support clients that are behind a NAT device or firewall that have shared external IP
addresses. In other words, there could be a firewall between the Cisco ECDS network and the client
device. However, the NAT device or firewall must support RTP/RTSP.
addresses. In other words, there could be a firewall between the Cisco ECDS network and the client
device. However, the NAT device or firewall must support RTP/RTSP.
Cisco ECDS Configuration Tips
Use the following configuration tips to help you manage your system. For more information, see the
on Cisco.com.
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