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Switch IPs as Clients on VPNC

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  • 1.  Switch IPs as Clients on VPNC

    Posted May 17, 2023 08:37 AM

    Hi everyone,

    I have a structure with multiple IAP (Cluster) and 2 VPNC for the guests SSID.

    My question is, that I can see in my VPNCs, in the clients section, some IPs of switches of the network.  I dont know that this is normal or not.  In some cases, that switches that I can see on the VPNC, dont have IAP connected to a port in the specific moment when I see on the VPNC, but in the past the switch has a IAP connected to it.

    Any recommendation, thanks.


  • 2.  RE: Switch IPs as Clients on VPNC
    Best Answer

    Posted May 30, 2023 12:29 PM


    It is not uncommon to see switch IPs in the clients section of VPNCs, especially if those switches have had IAPs connected to them in the past. This is because the VPNC may retain the IP information of devices that were previously connected to it, even if they are currently disconnected.

    Here are a few recommendations:

    1. Verify network connectivity: Ensure that the switches in question are properly connected to the network and functioning as expected. Check their physical connections and network configurations to rule out any issues.

    2. Refresh the client list: Try refreshing or updating the client list on the VPNC to see if the switches' IPs still appear. Sometimes, outdated information may linger, and a refresh can provide a more accurate view of the currently connected clients.

    3. Check for IP conflicts: Confirm that there are no IP conflicts between the switches and other devices on the network. Make sure each device, including switches and IAPs, has a unique IP address to avoid any potential conflicts.

    4. Monitor network activity: Keep an eye on network activity to see if any unexpected or unauthorized devices are attempting to connect. This can help identify any potential security issues or anomalies in the network.

    If the switches' IPs persistently appear in the clients section of the VPNC, despite not having any currently connected IAPs, it might be worth contacting the vendor or support team for further assistance. They can provide more specific guidance based on the configuration and setup of your network.

    Best regard,


  • 3.  RE: Switch IPs as Clients on VPNC

    Posted May 31, 2023 11:38 AM

    Thanks a lot for your time.

    Im going to follow your recommedations.


  • 4.  RE: Switch IPs as Clients on VPNC

    Posted May 30, 2023 01:00 PM

    hello i give my best explanation in this answer i hope you like my answer In a network environment with multiple IAPs (Access Points) and VPNCs (Virtual Private Network Concentrators) for the guests SSID, it is not unusual to see the IP addresses of switches in the clients section of the VPNC. This behavior can occur due to various reasons:

    Caching: The VPNC might retain the IP address information of switches that were previously connected to the network, even if they are currently disconnected. This could be due to the caching mechanism implemented by the network infrastructure. myccpay

    DHCP Leases: If the switches obtain IP addresses dynamically through DHCP (Dynamic Host Configuration Protocol), the VPNC might display their IP addresses as active clients. Even if an IAP is not currently connected to a switch, the IP address lease for that switch might still be active.

    Network Discovery: Some switches or network devices actively communicate with the network infrastructure, which can lead to their IP addresses being visible in the clients section of the VPNC. This communication could occur for management purposes, network monitoring, or other network protocols.

    It's important to note that the presence of switch IP addresses in the clients section of the VPNC does not necessarily indicate an issue with your network. However, if you are concerned about the visibility of these IP addresses or want to ensure the accuracy of the client list, you can consider the following steps:

    Check the network topology: Verify the physical connections between the switches and IAPs to ensure that they are correctly configured and connected.

    Review the DHCP lease information: Analyze the DHCP server logs or configuration to understand the lease duration and verify if any inconsistencies exist.

    Monitor network traffic: Use network monitoring tools to capture and analyze the network traffic between switches and the VPNC to gain further insights into the communication patterns.

    If you still have concerns or encounter any network issues, it's advisable to consult with a network administrator or IT professional who can assess your specific network setup and provide guidance based on your organization's requirements and infrastructure.