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Checking and changing state of Nokia IPSO's Firewall Flows feature
  • VPN-1/FireWall-1 traffic is not captured by the fw monitor command.

Firewall Flows improves the throughput of VPN-1/FireWall-1 software on a Nokia IP Series Appliance on IPSO 3.3, and later. It reduces overhead associated with VPN-1/FireWall-1, by moving a copy of the connection table to the device driver hardware-interrupt level, eliminating calls to the firewall kernel for existing connections. Only the first packet of a new TCP or UDP session is sent to the VPN-1/FireWall-1 Inspection Module for processing.

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