Netgear M5300-52G3 (GSM7352Sv2h2) - ProSAFE 48 ports managed L3 gigabit stackable switch Software Guide
21
Managed Switches
TFTP IP Address and the Configuration File Name
A BOOTP or DHCP server might return the TFTP IP address and configuration file name or
you can enter them manually:
you can enter them manually:
•
The name of the configuration file (bootfile or option 67) to be downloaded from the TFTP
server.
•
The identification of the TFTP server from which to obtain the bootfile. See the following
fields:
-
The host name of the TFTP server (option 66 or sname). Either the TFTP address or
name is specified, not both, in most network configurations. If a TFTP host name is
given, a DNS server is required to translate the name to an IP address.
name is specified, not both, in most network configurations. If a TFTP host name is
given, a DNS server is required to translate the name to an IP address.
-
The IP address of the TFTP server (option 150).
-
The address of the TFTP server (siaddr) to be used for Auto Install requests.
No BOOTP or DHCP configuration is saved in startup-config.
Conflicting TFTP Server Configurations
The TFTP server IP address can be deduced from the multiple sources. It is selected from
one of the following fields, listed from the highest priority to the lowest:
one of the following fields, listed from the highest priority to the lowest:
•
The sname field of a DHCP or BOOTP reply.
•
The TFTP server name (option 66) of a DHCP reply.
•
The TFTP server address (option 150) field of a DHCP reply.
•
The siaddr field of a DHCP or BOOTP reply.
DNS Server Requirements
A DNS server is needed to resolve the IP address of the TFTP server only if the sname or
option 66 values are used.
option 66 values are used.
Obtain a Config File
After obtaining IP addresses for both the switch and the TFTP server, the Auto Install process
attempts to download a configuration file. A host-specific configuration file is downloaded, if
possible. Otherwise, a network configuration file is used as a bridge to get the final
configuration. The methods are described in the following sections.
attempts to download a configuration file. A host-specific configuration file is downloaded, if
possible. Otherwise, a network configuration file is used as a bridge to get the final
configuration. The methods are described in the following sections.
Host-Specific Configuration File
If the DHCP or BOOTP server specifies a bootfile name, the switch attempts to download a
host-specific configuration file. The switch makes three unicast TFTP requests for the
host-specific configuration file. The switch makes three unicast TFTP requests for the