Monitor | Statistics | IPSec
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VPN 3000 Concentrator Series User Guide
IPSec (Phase 2) Statistics
This table provides IPSec Phase 2 global statistics. During IPSec Phase 2, the two peers negotiate
Security Associations that govern traffic within the tunnel.
Active Tunnels
The number of currently active IPSec Phase-2 tunnels, both for LAN-to-LAN connections and remote
access.
Total Tunnels
The cumulative total of all currently and previously active IPSec Phase-2 tunnels, both for LAN-to-LAN
connections and remote access.
Received Bytes
The cumulative total of bytes (octets) received by all currently and previously active IPSec Phase-2
tunnels, before decompression. In other words, total bytes of IPSec-only data received by the IPSec
subsystem, before decompressing the IPSec payload.
Sent Bytes
The cumulative total of bytes (octets) sent by all currently and previously active IPSec Phase-2 tunnels,
after compression. In other words, total bytes of IPSec-only data sent by the IPSec subsystem, after
compressing the IPSec payload.
Received Packets
The cumulative total of packets received by all currently and previously active IPSec Phase-2 tunnels.
Sent Packets
The cumulative total of packets sent by all currently and previously active IPSec Phase-2 tunnels.
Received Packets Dropped
The cumulative total of packets dropped during receive processing by all currently and previously active
IPSec Phase-2 tunnels, excluding packets dropped due to anti-replay processing. If there is a problem
with the content of a packet, the system drops the packet. This number should be zero or very small; if
not, check for misconfiguration.
Received Packets Dropped (Anti-Replay)
The cumulative total of packets dropped during receive processing due to anti-replay errors, by all
currently and previously active IPSec Phase-2 tunnels. If the sequence number of a packet is a duplicate
or out of bounds, there may be a faulty network or a security breach, and the system drops the packet.
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