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Configure client computer distributed cache mode firewall rules
Published: October 7, 2009
Updated: October 7, 2009
Applies To: Windows 7, Windows Server 2008 R2
You can use the information in this topic to configure third party firewall products and to manually configure a client computer with firewall rules that allow BranchCache to run in distributed cache mode.
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Membership in Administrators, or equivalent is the minimum required to make these configuration changes.
Distributed cache clients must allow inbound and outbound MS-PCCRD traffic, which is carried in the Web Services Dynamic Discovery (WS-Discovery) protocol.
Firewall settings must allow multicast traffic in addition to inbound and outbound traffic. You can use the following settings to configure firewall exceptions for distributed cache mode.
IPv4 multicast: 239.255.255.250
IPv6 multicast: FF02::C
Inbound traffic: Local port: 3702, Remote port: ephemeral
Outbound traffic: Local port: ephemeral, Remote port: 3702
Program: %systemroot%\system32\svchost.exe (BranchCache Service [PeerDistSvc])
Distributed cache clients must allow inbound and outbound MS-PCCRR traffic, which is carried in the HTTP 1.1 protocol as documented in request for comments (RFC) 2616.
Firewall settings must allow inbound and outbound traffic. You can use the following settings to configure firewall exceptions for distributed cache mode.
Inbound traffic: Local port: 80, Remote port: ephemeral
Outbound traffic: Local port: ephemeral, Remote port: 80
