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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.

noteNote
  • If you have configured BranchCache client computers using Group Policy, the Group Policy settings override any manual configuration of client computers to which the policies are applied.

  • If you have deployed BranchCache with DirectAccess, you can use the settings in this topic to configure IPsec rules to allow BranchCache traffic.

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

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