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IPassignIPassigna tool for assignment IP address to ICEPAP

Presented by Roberto Homs

Member of BLISS group

IPassign tool / BLISS Day OutR. Homs – 15/01/2007

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IP assign tool

• IPassign is a basic tool to detect and configure remotely ICEPAP MASTERs on the network, even if they have wrong IP configuration.

• i. e. IP address associated to other Beam Line, where ICEPAP came from.

• Automatically detects ICEPAP MASTERs on the network

• Configures the hostname validated with DNS

• Writes in flash memory the configuration

• Remote reboot

IPassign tool / BLISS Day OutR. Homs – 15/01/2007

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advanced mode of configuration

• Information:

• MAC

• Configuration:

• hostname

• IP

• mask

• gateway

• BC

• Writes:

• flash

• RAM

• Remote reboot

• This mode allows specialists do what they want ...

IPassign tool / BLISS Day OutR. Homs – 15/01/2007

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advanced mode of configuration

• In case of error, the IP connectivity will not exist, so IPassign must be used again to reconfigure ICEPAP Master with good values.

IPassign tool / BLISS Day OutR. Homs – 15/01/2007

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design review

• IPassign tool is supported on multicast protocol• HW filtering with a reserved virtual MAC address for multicast packages, and IP filtering

for multicast class D address.

• class D address (224.0.0.0 – 239.255.255.255), reserved virtual MAC (01:00:5e:xx:xx:xx)

• receiver can have wrong IP data (IP addr, gateway, mask ...)

• UDP

• A listener program must be running in ICEPAP MASTER, which is launched at boot time.

• Bidirectional and errorless communication was implemented by in-house developed protocol with:

• destination / source ID

• package numbering

• function code

• CRC

IPassign tool / BLISS Day OutR. Homs – 15/01/2007

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multicast: subnet

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Icepapmaster

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Icepapmaster

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Icepapmaster

IPassign

listener

listener

listener

TTL = 1

TTL = 1 is used in IPassign (not configurable) to prevent any interaction with other ESRF beam lines.

(or ALBA BLs ...)

IPassign tool / BLISS Day OutR. Homs – 15/01/2007

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conclusions

IPassign tool and listener program for ICEPAP module were developed and tested.

Connectivity was restricted to a Beam Line (TTL=1).

Structure and protocol created can be extended to use in other tasks where simultaneous communication with a group of receivers is needed, i. e. upgrading package files.

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thanks for your attention!