Conference 7.286::fddi

1029.0. "Decbridge 610 bootp ip address setting" by HLFS00::HAANS_E (C-YA AGAIN ... ON MY WAY BACK) Thu Jul 15 1993 15:02

    Hello,
    
    I'm having a problem at a customer's site with the IP adress setting
    on a decbridge 610.  (DEFEB-TB software V1.2)
    
    Documentation says DECMCC (Not available) or via the Bootp mechanism.
    When you power up the bridge it is suppose to send a multicast message
    to address FF FF FF FF FF FF with a bootP request every 64 seconds.
    A set up of an Unixserver can then response to the request with an 
    IP address.
    It will not be saved in NVRAM but be loaded every time on power up.
    So far so clear.........but it won't.
    
    The customer has connected a 'Sniffer' to the network and is measuring
    for destination FFFFFFFFFFFF and/or source Ethernet address of port 2.
    (THe FDDI port is not connected, only a loopback connector)
    We don't see any multicast from the bridge only one DecMOP and one
    Decbridge mgmt. We looked for 10 minutes. The other 2 NI ports also
    have a loopback. 
    Then we did a factory reset with switch 2 so an eventally stored IP
    would be cleared, but it made no difference.
    We looked at the other ports 3 and 4. Nothing seen there also.
    I had a new AP2 module with me: tried this one. No succes either.
    Also set switch 3,4,5,6 for mgmnt acces this doesn't help either.
    
    So my questions are: Do you need the FDDI port (port 1) to load the
    			IP address ?
    			Is it possible to enable/disable the BootP
    			mechanism ?
    			Can we do a ping test to the ethernet address
    			in stead of the not set IP address (don't think so)
    
    	How can we set the IP address ???????
    
    Any help would be appreciated,
    
    Erik Haans
    

    >> So my questions are: Do you need the FDDI port (port 1) to load the
    >>			IP address ?
    
    No, it will send the broadcast out all active ports.
    
    >>			Is it possible to enable/disable the BootP
    >>			mechanism ?
    
    It is only enabled when the IP Address is zero on power up. Setting the
    IP Address to a non-zero value cancels the bootp requests.
    
    >>			Can we do a ping test to the ethernet address
    >>			in stead of the not set IP address (don't think so)
    
    No.
    
    Everything you did seems to be Kosher. You should definitely see a
    broadcast message once per minute. The source address might be the port
    1 mac address, can't remember, but it doesn't really matter. Did you
    verify that your NI port is active (green LED) and in forwarding mode
    (yellow LED)? Can't think of anything else.
    
    Dave
      
    

    Thanks for the answers.
    
    The problem is solved: The bridge is doing the request only for the
    first Ethernet address, this is the address from the FDDI port.
    The decbridge FDDI module didn't have it's loopback connector placed
    first, so the fddi  didn't pass self test and I think it doesn't
    forward his ethernet address then.
    We then plugged in the loopback connector and where looking at the
    port 2 E-address..... wrong.
    
    So every thing is fine now,
    
    Erik.

    I have been informed by a customer, that the DECbridge 600, which does
    not have an FDDI board, rather it has a dummy FDDI board, does not send
    the bootp request on any ethernet port. Can someone verify this ?
    
    Firmware 1.3 is installed
    
    	Thanks		Peter