For an IPv6 address, the mask is set to 128 and cannot be modified. Subnet Mask (IPv4) or Prefix Length (IPv6): You cannot change the netmask of the loopback interface.For Infoblox-4030 appliance, use a /128 CIDR for IPv6 while configuring multiple interfaces. An IPv6 address is a 128-bit number in colon hexadecimal notation. Address: Enter the IP address you want to add to the loopback interface.Interface: Displays Additional Address (loopback).
You cannot configure the subnet mask, prefix length, gateway, or port settings. You can only enter the IP address you want to add to the loopback interface. Note: You cannot configure Additional Address (loopback) (IPv4) interface for an IPv6 Grid member and Additional Address (loopback) (IPv6) interface for an IPv4 Grid member. Click the Add icon in the Additional Ports and Addresses table and select Additional Address (loopback) (IPv4) or Additional Address (loopback) (IPv6) from the drop-down list.You can add an IPv4 or IPv6 address on the loopback. In the Grid Member Properties Editor, select the Network tab -> Basic tab.From the Grid tab, select the Grid Manager tab -> Members tab -> Grid_member check box -> Edit icon.To configure an IP address on the loopback interface: However, if the LAN1 interface fails, the outgoing traffic will not be re-directed to any other interface and access to LAN2 and MGMT also fails. When you configure multiple interfaces on the same subnet, the outgoing traffic from NIOS host which is received through LAN2 and MGMT is directed to the LAN1 router for all interfaces on the LAN1 subnet, irrespective of the destination IP. An Infoblox-4030 can replace three DNS cache servers that are active on the same network. Alternatively, you can use a /32 netmask (255.255.255.255) for IPv4, or /128 CIDR prefix for IPv6 with the same subnet as LAN1 interface to configure multiple interfaces. To configure LAN1, LAN2 and MGMT interfaces to the same IPv4 or IPv6 subnet, provide the same netmask for IPv4, or a CIDR prefix for IPv6, as the LAN1 interface. Note: You can configure multiple interfaces on the Infoblox-4030 appliance only. For information, see Advertising Loopback Addresses to the Network. When you configure non-anycast addresses on the loopback interface, ensure that you establish a static route between the appliance and the router so queries to these addresses are routed correctly. For information, see Specifying Source Ports. You then configure the appliance to listen for DNS queries solely on this address. You first add an IP address you want to use for DNS queries on the loopback interface.
You can also add an IP address that is used solely for DNS queries, to separate the DNS traffic.
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