An Internet gateway is not required to establish a Site-to-Site VPN connection.Ī: IPsec is a protocol suite for securing Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a data stream. Data transferred between your VPC and datacenter routes over an encrypted VPN connection to help maintain the confidentiality and integrity of data in transit. Amazon supports Internet Protocol security (IPsec) VPN connections. Q: How does an AWS Site-to-Site VPN connection work with Amazon VPC?Ī: An AWS Site-to-Site VPN connection connects your VPC to your datacenter. From there, it can access the Internet via your existing egress points and network security/monitoring devices. The NAT gateway or NAT instance allows outbound communication but doesn’t allow machines on the internet to initiate a connection to the privately addressed instances.įor VPCs with a hardware VPN connection or Direct Connect connection, instances can route their Internet traffic down the virtual private gateway to your existing datacenter. These instances use the public IP address of the NAT gateway or NAT instance to traverse the internet. Instances without public IP addresses can route their traffic through a network address translation (NAT) gateway or a NAT instance to access the internet. Q: How do instances without public IP addresses access the Internet?Ī: Instances without public IP addresses can access the Internet in one of two ways:
#Mac address same for all vpn clients mac
When an MX is set to track clients by IP, the client MAC addresses displayed on the clients list may not be accurate.Q: What are the VPN connectivity options for my VPC?Ī: You may connect your VPC to your corporate data center using a Hardware VPN connection via the virtual private gateway. Since the non-Meraki layer 3 switch won't be modifying the source IP of client traffic, the MX can identify different clients by IP: In order to identify clients downstream of the non-Meraki layer 3 switch, the MX can be changed to track clients by their IP. Second, in cases where there is a non-Meraki layer 3 switch performing inter-VLAN routing downstream of the MX. If you are using Meraki layer 3 switches, enable Unique Client Identifier instead. Since non-Meraki layer 3 devices will modify the source MAC address of client traffic, the MX cannot identify clients by their MAC as shown below. This option is best used in the two case scenarios:įirst is in split networks, where all layer three devices are Meraki devices but they are in separate dashboard networks. Note: Similar to Track by Unique client identifier, some tools, such as client connectivity alerts and client ping, are based on ARP and will not be available when using Track by IP. Tracking by unique client identifier also disables uplink sampling for clients, which can be helpful in certain scenarios where non-Meraki NAC solutions are deployed in mixed vendor environments. In this deployment scenario, tracking by IP would otherwise require the security appliance to be split into a separate dashboard network, as tracking by IP is not supported in combined networks. Tracking by MAC would fail to identify end client devices due to the layer 3 boundary, associating downstream client traffic to the routing switch and negatively affecting network usage numbers in dashboard. This method should be used only if the network has downstream layer 3 routing devices that are all Meraki devices. This is specifically useful when there are Meraki MS switches routing layer 3 between end clients and the security appliance, which segregates broadcast traffic containing the client's MAC address. It uses an algorithm that intelligently correlates client MAC and IP addresses seen across the Meraki stack, allowing the security appliance to generate a unique identifier for each client in a combined network with other Meraki devices. Unique client identifier is a Meraki technology that leverages network topology and device information to uniquely identify and track clients.
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