Client devices have a default gateway of the layer 3 device the vlan has been defined on. Layer 3 firewall rules on the mr are stateless and can be based on destination address and port. Layer 3 and 7 firewall processing order cisco meraki. Although client vpn users are considered part of the lan, network administrators may see a need for limiting overall access. If the clients passed the fw on the mr and then goes to the mx they will be run the rules on the mx as well. Traffic allowed by default by default, outbound traffic will be allowed through the firewall unless explicitly blocked by at least one l3 or l7 rule. A layer 3 firewall rule on the mx or zseries appliance is stateful and can be based on protocol, source ip address and port, and destination ip address or fqdn and port. Layer 3 firewall in group policy settings the grouppolicy will override any of your firewall settings on mr or mx devices, so keep that in mind. Hi, does any on know if is it possible to specify inbound interface or outbound interface in a layer 3 rule. Even with the systems advanced security capabilities and ease of use, there are. For the examples to follow, the layer 3 l3 and layer 7 l7 firewall rules shown below will be used, with a security appliance network used for reference. This looks very basic and important to a firewall to define in access rules and i found it weird that we could not do it on meraki mx. Mx and ms basic recommended layer 3 topology cisco meraki. Firewall layer 3 inbound interface rules the meraki.
Layer 3 firewall rules are a powerful tool for permitting and denying client vpn traffic. Firewall rules can be used to limit access for vpn users to specific addressesports or ranges of addresses. So youre considering implementing cisco meraki, here are some tips on having a smooth security deployment. Different kinds of requests will match different rules, as the table below shows. For downstream infrastructure and client subnets, static routes are configured on the mx. Built on cisco meraki s awardwinning cloud architecture, the mx is the industrys only 100% cloudmanaged solution for unified threat management utm and sdwan in a single appliance. As an example, the figure below depicts a sample set of custom firewall rules that will be enforced at layer 3. Layer 3 firewall rules the mx security appliance allows for custom outbound firewall rules to be configured to ensure precise and granular control over which networks are able to communicate with one another. The allowdeny local lan on the wireless firewall rules isnt an option on the group policy method, so if you want to say block local lan access then you need to create 3 rules to deny rfc1918.