пятница, 21 апреля 2017 г.

How to update firmware Cisco IP Phone 7942 with TFTP and FortiGate DHCP Server

I have:
- a new Cisco IP Phone 7942 after hard reset
- a new firmware version 9.4(2)SR3 for my phone (download from Cisco support center, login in need)
- a free TFTP server based on tftpd64.exe (http://tftpd32.jounin.net/tftpd32_download.html)
- a Fortigate FD100 device as DHCP server

And I need upgrade firmware. When IP Phone is booting he request IP address and address of TFTP server when is firmware placed.

1. First step - run the tftpd64.exe and set Current Directory with unpacked firmware (see folder contains below). And set interface for service listening.



2. Second step - configure Fortigate FD100 for DHCP server and config option 150

FG100 # show system dhcp server 4
config system dhcp server
    edit 4
        set default-gateway 192.168.5.1
        set netmask 255.255.255.0
        set interface "VOIP_VLAN_5"
        config ip-range
            edit 1
                set start-ip 192.168.5.10
                set end-ip 192.168.5.254
            next
        end
        set timezone-option default
        config options
            edit 1
                set code 150
                set value "C0A80511"
            next
        end
        set dns-server1 192.168.5.5
        set dns-server2 8.8.8.8
    next
end

This can you add via web interface. If I add pre configured option on FD, this dont work and I great a manual option with number 150 and add a HEX IP address of my TFTP server. HEX calculating using - http://ncalculators.com/digital-computation/ip-address-hex-decimal-binary.htm

3. Boot IP Phone and wait...

If you configured all fine the phone get IP address and start the process of upgrade:



Troubleshoting.

The biggest problem is optin 150. If you add this option correctly ont the side of TFTP Server you can see traffic from phone and can check error... See below:


This indicates that option set correctly byt need check the folder and files of firmware

1 комментарий:

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