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Discovering IP address' of our alcatel switchs

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  • 14-05-2007 11:35am
    #1
    workaccount
    Closed Accounts Posts: 2,460 ✭✭✭


    Hi,

    We have two alcatel switches and I want to find out the ips so I can log in and configure them remotely.

    I just scanned the whole network with netwhistler and everything has shown up as a workstation even the bloody printers...


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    #2
    Kali
    Closed Accounts Posts: 6,601 ✭✭✭Kali


    If its just a standard workgroup switch it may not even have/require an IP address assigned. Check the console directly with a serial cable and save yourself some hassle.


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    #3
    Cal
    Registered Users Posts: 926 ✭✭✭Cal


    Traceroute

    Cal.


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    #4
    workaccount
    Closed Accounts Posts: 2,460 ✭✭✭workaccount


    Cal wrote:
    Traceroute

    Cal.


    hmmm traceroute wont give me the ip address of a switch.

    Its a high spec MPLS so theres defintely remote access.

    I don't know the commands for alcatel switches you see so I want to access the web interface.


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    #5
    Cal
    Registered Users Posts: 926 ✭✭✭Cal


    workaccount wrote:
    hmmm traceroute wont give me the ip address of a switch.

    Note to self......read post carefully before posting:o

    Kali's suggestion seems most logical.

    Cal.


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    #6
    workaccount
    Closed Accounts Posts: 2,460 ✭✭✭workaccount


    Its a 48 port 6850.


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    #7
    Alun
    Registered Users Posts: 21,470 ✭✭✭✭Alun


    Many high-end switches have either a separate physical RJ-45 connector for administration purposes (out-of-band admin) and/or put the administrative functions on a separate VLAN, so you might not even see it on an IP scan from one of the other VLAN's.

    Who installed the switches? They should know how they're configured.


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    #8
    Cal
    Registered Users Posts: 926 ✭✭✭Cal


    Best I can offer is
    http://www1.alcatel-lucent.com/enterprise/en/resource_library/pdf/user_manuals/os6800-6850-9000_nt_621r01.pdf

    Cal.


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    #9
    workaccount
    Closed Accounts Posts: 2,460 ✭✭✭workaccount


    Ok, Ill just go up and manually connect to the switch.

    Thanks.


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    #10
    Sponge Bob
    Banned (with Prison Access) Posts: 25,234 ✭✭✭✭Sponge Bob


    console cables are your friend


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    #11
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 91,840 Mod ✭✭✭✭Capt'n Midnight


    If all else fails then reboot it and sniff the traffic as it starts up with etheareal or similar works well for routers, but a real pain for switches since you're better off disconnecting all the other devices :(

    if the unit has a MAC address then you could use Ethereal or windup/tcpdump to only report packets from that till you find an IP packet , if you get lucky


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    #12
    _CreeD_
    Registered Users Posts: 4,148 ✭✭✭_CreeD_


    2 options, both rely on the Mac address being printed on the units (most are).

    1 - Check your DHCP server for those MACs as most devices default to BOOTp/DHCP out of the box.
    2 - Run NMAP -sP (subnet/bit notation) and pipe the results to a text file eg. To scan a std. class C network of 192.168.1.0 255.255.255.0 run "NMAP -sP 192.168.1.0/24 >C:\Temp\Nmap1.txt" . It will do a simple ping scan and output the results, including IP and mac addresses, to the file which can then be easily analysed.


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