Add Host

You can specify an address or a host name for the following computers:
  • A computer that triggers a firewall rule
  • A computer that the client excludes from checks by the firewall s.
  • A computer that the authenticator client device excludes from the peer-to-peer authentication process. The authenticator normally blocks traffic from a remote client that tries to connect to the authenticator. The authenticator does not block computers in this list. For peer-to-peer authentication, you can only specify the IP address, IP range, and subnet.
Host configuration options
Type
Description
Host Type
  • Source
    Computer that the packet comes from. For the inbound traffic, the source is the remote host. For the outbound traffic, the source is the local host.
  • Destination
    Computer that the packet goes to. For inbound traffic, the destination is the local host. For outbound traffic, the destination is the remote host.
If the client communicates with a web server and the traffic is inbound, then the source host is the web server; the destination host is the client. If the traffic is outbound, the source host is the client and the destination host is the Web server.
  • Local
    Client computer
  • Remote
    Computer that communicates with the client computer
If the client communicates with a web server, the remote host is the web server; the local host is the client. The local host is the same, for both inbound traffic and outbound traffic.
Address Type
The address type of the host for which connections are allowed or blocked.
You choose one of the following options to define a host:
  • IP Address
    (default)
    A unique address that devices use to communicate with each other using the IP address. For firewall policies, you can specify IPv4 or IPv6.
  • IP Range
    Start
    IP address and
    End
    IP address that identifies a block of IP addresses. For firewall policies, you can specify IPv4 or IPv6.
  • DNS Domain
    A unique address that devices use to communicate with each other using the DNS domain.
  • DNS Host
    (Firewall only) A unique address that devices use to communicate with each other using the DNS host.
  • Local Subnet
    Allows traffic to the local subnet even if the IP address of the local subnet changes.
  • MAC Address
    A unique address that devices use to communicate with each other using the MAC address.
  • Subnet
    A subnet lets you divide the host part of an IP address into two or more subnets. It identifies the network and the node parts of the address. You can specify an IPv4 or IPv6 subnet mask.
    You specify
    Subnet Address
    and
    Subnet Mask
    for IPv4. The subnet mask format for IPv4 is
    nnn.nnn.nnn.nnn
    , such as 255.255.255.0. For IPv6, you enter the address and mask together in the
    IPv6 Subnet Mask
    text box.