Tripp Lite B093-004-2E4U-V Owner's Manual

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15. Advanced Conﬁguration

o In secure mode, the URL must use the https scheme or it is skipped.

o Otherwise, the available schemes are: http https tftp ftp ftps.

o The curl program is used to download the URL.

o In secure mode, the server’s certiﬁcate must validate against the ca-bundle.crt. The (reqiured) client.pem ﬁle is provided

to authenticate the client to the server. Please see the curl documentation for the format of these ﬁles.

• The URL is downloaded. For .opg ﬁles, its header is checked to see if it is compatible with the current device. For .xml ﬁles,

a parse check is made. If the check fails, the downloaded ﬁle is abandoned and the next URL is tried.

• The ﬁle is imported into the current conﬁguration.

• The system checks to see if a hostname has been set in the conﬁg. If not, it is set to ${model}-${mac}.

• The system checks to see if it is still in an unconﬁgured state. If it is, then the network interface mode is set to DHCP. This

effectively forces the system into a conﬁgured state, preventing a future reboot loop.

• The system reboots.

Notes: If all the URLs were skipped or failed, the system will wait for 30 seconds before retrying. It will retry all URLs up to 10 times. After

the 10th retry, the system will reboot. If the system has been manually conﬁgured in the meantime, the retries will stop and ZTP will be

disabled.

If no option 43 is received over DHCP, no URLs are downloaded and no reboots occur: the system must be manually conﬁgured. Once

conﬁgured (manually or by ZTP), a Tripp Lite device will no longer request option 43 from the DHCP server, and it will ignore option 43

conﬁguration URLs presented to it.

15.16 Internal Storage

Some models have an internal USB ﬂash drive, a non-volatile NAND ﬂash partition, or both, which can be used by

portmanager for log storage and the TFTP/FTP server for ﬁle storage.

These storage devices are automatically mounted as subdirectories of /var/mnt/. The default directory served by FTP or TFTP

is set to the preferred internal storage (if any). Otherwise, it is set to the ﬁrst detected attached USB storage. The location of

portmanager logs must be manually conﬁgured.

15.16.1 Filesystem Location of FTP/TFTP Directory

Product Preferred storage Directory

B093 Internal ﬂash /var/mnt/storage.nvlog/tftpboot/

B097 Internal USB ﬂash /var/mnt/storage.usb/tftpboot/

B098 Internal USB ﬂash /var/mnt/storage.usb/tftpboot/

15.16.2 Filesystem Location of Portmanager Logs

Port log server type Directory

USB Flash Memory /var/mnt/storage.usb/

Non-volatile internal storage /var/mnt/storage.nvlog/

MicroSD Card /var/mnt/storage.sd/

Other (NFS, CIFS, etc.) As explicitly conﬁgured

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Tripp Lite B093-004-2E4U-V 4-Port Console Server with 4G LTE Cellular Gateway, Dual GbE NIC, 4Gb Flash and Dual SIM