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From OpenVZ Wiki

This page describes the functionality that we've done for mainstream and are going to have in coming 2.6.26-based OpenVZ kernel.

Already in

• Tunnels
  • IPv4-over-IPv4 (ipip)
  • IPv4-over-GRE (ip_gre)
  • IPv6-over-IPv4 (sit) already exists in 2.6.24
  • IP-in-IPv6 (RFC2473)
• ipv6 flowlabels
• /proc/net files
  • netlink (now absent)
• persistent TUNs (should actually work, need CPT tunables)
• DCCP protocol

Sent for RFC

• BSD process accounting

Planned

• /proc/net files
  • sockstat file in CT (currently empty)
• SCTP protocol (feature request: #400)