Option 1 - Configure Networking and System Time Settings
This section describes option 1 (Configure networking and system time settings) from the Gateway System Settings option in the main menu.
This section describes option
1(Configure networking and system time settings) from the Gateway System Settings option in the
Layer7 API Gatewaymain menu.
(1) After configuring the networking and system time settings using the directions below, you can update the settings using the Restricted Shell commands. For more information, see "Commands for Network Configuration" and "Commands for System Configuration" (within the topic Option 5 - Use Restricted Shell). (2) If you choose to use "Option 1 - Configure networking and system time settings" again to update, be sure to complete the configuration wizard by pressing [Enter] to accept all your unchanged values, until the end of the wizard is reached.
Use this option to configure networking, the time zone, and time synchronization on your Gateway.
- The detected interfaces are shown. Enter the number of the interface to configure or choose "Configure an unlisted interface" to configure a new interface.
- Specify whether to enable the interface upon boot.
- If configuring a new interface, enter the name of the interface.Predictable Network Device Naming ConsiderationsIf you are running Gateway 10.0+ on CentOS 7, your network interface names may have changed. "eth0" has been renamed to "ssg_eth0" and "eth1" has been renamed to "ssg_eth1" for the hardware appliance Gateway. The OVA Gateway also adopts a similar naming convention but with exceptions related to the predictable (consistent) network device naming scheme of CentOS 7. To learn more, see the Network Deployment Guide.Unable to See Correct Network Interface Name When Adding a New Network InterfaceIf you've already installed Gateway 10.x on a CentOS 7 appliance with the required network interfaces already configured, you may want to add a new network interface later. If you are not seeing the new interface with the 'ssg_eth#' name or an 'unlisted interface' option, see the instructions here for the fix involving the creation of a new network configuration file.
- Specify whether to configure IPv4 networking. If no, skip to step 7 to configure IPv6 networking.
- Specify the boot protocol for the interface:staticordhcp(dynamic).
- If the protocol isstatic, enter the following details for the interface:IPv4 addressIPv4 netmaskIPv4 gatewayIf the protocol isdhcp, you can either enter the DHCP hostname or leave this value empty to skip to the next question.Providing a DHCP hostname is recommended in most environments using DNS servers with DHCP.
- Specify whether to configure IPv6 networking. Ifyes, continue with step 8. Ifno, you are prompted whether to configure another interface (yes = return to step 1; no = skip to step 11).
- Specify whether to enable IPv6 auto-configuration for the interface.Technical note:If enabled, an IPv6 address is requested using Neighbor Discovery (ND) from a router running theradvddaemon. For more information, see "IPV6_AUTOCONF" on this page of the Red Hat documentation.
- Specify whether to enable DHCPipv6 for the interface. Proceed to step 10 if enabled, otherwise follow the prompts on the screen.
- Enter a static IPv6 address and optionally enter one or more secondary addresses.
- Specify whether to configure a default Gateway for the interface(s) that you have enbled. Configuring a default Gateway is optional. For more information, see"Determining Whether a Default Gateway is Necessary"under Gateway System Settings (Appliance).If you enteryes, provide the following information:
Entering a blank in either field clears the setting for that field.The prompts repeat for a default IPv6 Gateway.
- Enter the IP address of the Gateway.
- Select the device (interface) to use from the list displayed.
- Enter the fully qualified hostname for the Gateway (for example, "machine.mycompany.com").
- Optionally specify the name servers and/or search domains. Leave these blanks to have the name servers and search domains generated by DHCP
- Specify whether to configure the time zone for the Gateway. By default, the time zone for the appliance Gateway is "America/Vancouver", while the software Gateway uses the time zone in effect on the host machine.
- If yes, keep selecting from the lists presented until your choice results in a single time zone.
- If no, proceed to the next step in the configuration.
- Specify whether to configure time synchronization on the machine. Time synchronization is an essential system setup step for clustering and replay attack prevention.
- If yes, enter the IP address or hostname of the NTP time server.
- If no, proceed to the next step in the configurator.
- Carefully review the configuration settings.
- To accept your configuration settings, enteryto save the changes. If the configuration results contain errors, analyze the errors and run option1again.
- To discard all your entries and exit the configurator, typeqorquit.
If you did not configure a nameserver in step 13 or if the nameserver that was configured does not recognize the hostname entered in step 12 then the hostname may not be resolvable. To prevent this from happening, either configure a nameserver in step 13 or ensure that there is an appropriate entry in
/etc/hostsfor this hostname. This can be done using the Network Configuration commands using the ‘hosts’ subshell; see "Commands for Network Configuration" in Option 5 - Use Restricted Shell.