IPSec VPN Monitoring

System > Network > VPN > IPSec VPN

In the ISAKMP SA, IPSec SA, and Dial-up User tabs, the VPN Monitor function displays the SA negotiation results of IPSec VPN Phase1 and Phase2 as well as information of dial-up users.

In the IPSec VPN page, click the IPSec VPN Monitor to view the corresponding statistics:

Items in the ISAKMP SA tab:

Item Description
Cookies

Displays the negotiation cookies which are used to match SA Phase 1.

Status

Displays the status of SA Phase1.

  • established - Indicates that SA Phase1 is successful.
Peer

Displays the IP address of the peer.

Port

The port number used by the SA Phase1. 500 indicates that no NAT has been found during the SA Phase 1; 4500 indicates that NAT has been detected.

Algorithm

Displays the algorithm of the SA Phase1, including authentication method, encryption algorithm and verification algorithm.

Lifetime

Displays the lifetime of SA Phase1. The unit is second.

Items in the IPSec SA tab:

Item Description
ID

Displays the tunnel ID number which is auto assigned by the system.

VPN Name

Displays the name of VPN.

Direction

Displays the direction of VPN.

Peer

Displays the IP address of the peer.

Port

The port number used by the SA Phase2.

Algorithm

The algorithm used by the tunnel, including protocol type, encryption algorithm, verification algorithm and depression algorithm.

SPI

Displays the local SPI and the peer SPI. The direction of inbound is local SPI, while outbound is peer SPI.

CPI

Displays the compression parameter index (CPI) used by SA Phase2.

Lifetime (s)

Displays the lifetime of SA Phase2 in second, i.e. SA Phase2 will restart negotiating after X seconds.

Lifesize (KB)

Displays the lifetime of SA Phase2 in KB, i.e. SA Phase2 will restart negotiating after X kilobytes of data flow.

Status

Displays the status of SA Phase2.

Items in the Dial-up User tab:

Item Description
Peer

Displays the statistic information of the peer user. Select the peer you want from the drop-down list.

User ID

Displays the IKE ID of the user selected.

IP

Displays the corresponding IP address.

Encrypted Packets

Displays the number of encrypted packets transferred through the tunnel.

Encrypted Bytes

Displays the number of encrypted bytes transferred through the tunnel.

Decrypted Packets

Displays the number of decrypted packets transferred through the tunnel.

Decrypted Bytes

Displays the number of decrypted bytes transferred through the tunnel.