Skip to main content

What are the modes in which interfaces on Palo Alto can be configured?

What are the modes in which interfaces on Palo Alto can be configured?

When configuring the Ethernet ports on your firewall, you can choose from virtual wire, Layer 2, or Layer 3 interface deployments. In addition, to allow you to integrate into a variety of network segments, you can configure different types of interfaces on different ports. The following sections provide basic information on each type of deployment.
-Virtual Wire Deployments
-Layer 2 Deployments
-Layer 3 Deployments
Virtual Wire Deployments
In a virtual wire deployment, the firewall is installed transparently on a network segment by binding two ports together. By using a virtual wire, you can install the firewall in any network environment without reconfiguring adjacent devices. If necessary, a virtual wire can block or allow traffic based on the virtual LAN (VLAN) tag values. You can also create multiple subinterfaces and classify traffic according to an IP Address (address, range, or subnet), VLAN, or a combination of the two.
By default, the virtual wire (named default-vwire) binds Ethernet ports 1 and 2 and allows all untagged traffic. Choose this deployment to simplify installation and configuration and/or avoid configuration changes to surrounding network devices.
A virtual wire is the default configuration, and should be used only when no switching or routing is needed. If you do not plan to use the default virtual wire, you should manually delete the configuration before proceeding with interface configuration to prevent it from interfering with other interface settings you define.
Layer 2 Deployments
In a Layer 2 deployment, the firewall provides switching between two or more interfaces. Each group of interfaces must be assigned to a VLAN object in order for the firewall to switch between them. The firewall will perform VLAN tag switching when Layer 2 subinterfaces are attached to a common VLAN object. Choose this option when switching is required.
Layer 3 Deployments
In a Layer 3 deployment, the firewall routes traffic between ports. An IP address must be assigned to each interface and a virtual router must be defined to route the traffic. Choose this option when routing is required.
You must assign an IP address to each physical Layer 3 interface you configure. You can also create logical subinterfaces for each physical Layer 3 interface that allows you to segregate the traffic on the interface based on VLAN tag (when VLAN trunking is in use) or by IP address, for example for multi-tenancy.
In addition, because the firewall must route traffic in a Layer 3 deployment, you must configure a virtual router. You can configure the virtual router to participate with dynamic routing protocols ( BGP, OSPF, or RIP) as well as adding static routes. You can also create multiple virtual routers, each maintaining a separate set of routes that are not shared between virtual routers, enabling you to configure different routing behaviors for different interfaces.

Comments

Popular posts from this blog

Checkpoint firewall common commands part 2

Checkpoint firewall common commands part 2 For basic firewall informaton gathering: fgate stat -Status and statistics of Flood-Gate-1. fwaccel <stat|stats|conns>  – View status, statistics or connection table of SecureXL. fw getifs -Show list of configured interfaces with IP and netmask. cpstat <app_flag> [-f flavour] -View OS, HW and CP application status. Issue cpstat without any options to see all possible application flags <app_flag> and corresponding flavours. Examples: cpstat fw -f policy – verbose policy info cpstat os -f cpu – CPU utilization statistics cpinfo -y all   -List all installed patches and hotfixes. cpd_sched_config print -Show task scheduled with CPD scheduler. enabled_blades -View enabled software blades avsu_client [-app <app>]   , get_version <app>  -Get signature version and status of content security .Without the -app option “Anti Virus” is used. show co...

Unable to Connect to Server Checkpoint R80

Unable to Connect to Server Checkpoint R80 Unable to Connect to Server A connection to the management server will fail if: A firewall between SmartConsole and the management server blocks Port 19009 -  port 19009 is used for a new R80 service. Allow traffic on this port for all clients and management servers. No GUI clients are assigned -  Open the Gaia Portal. If the First Time Configuration Wizard opens, complete it. If the First Time Configuration Wizard has already run, open  User Management > GUI Clients  and add a client. When using Multi-Domain Security Management, connect SmartConsole to the Multi-Domain Server and make sure the domains have GUI clients assigned to them. The required processes are not reachable -  Make sure the computer with SmartConsole installed can reach the IP address of the management server, and that these server processes are up and running: cpm fwm Operation time out  – Your connection ...

Configuring Proxy ARP for Manual NAT

Configuring Proxy ARP for Manual NAT Symptoms After creating a Manual Static NAT rule, Security Gateway does not answer the ARP Requests for the Static NATed IP address that was configured in the Manual NAT rule. Security Gateway replies to ARP requests with a wrong MAC address, mostly for the NAT traffic.  Introduction Let us consider the following scenario: Two networks ( Network_A  and  Network_B ) are separated by a Security Gateway (single Security Gateway or ClusterXL). On each network, there is a host ( Host_A  on  Network_A ,  Host_B  on  Network_B ). Let us assume, that  Network_A  represents the  Internal  network, and  Network_B  represents the  External  network. According to the existing standards, when  Host_B  needs to send data to  Host_A , an ARP Request for the MAC address of  Host_A  will be sent by  Host_B  to  Network...