+ Post New Thread
Results 1 to 7 of 7
Wireless Networks Thread, Phantom Switches in Technical; About 2 months we had to get rid of 2 switches (3com 4226t). This morning I was going through some ...
  1. #1

    Join Date
    Mar 2007
    Location
    Smethwick
    Posts
    49
    Thank Post
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0

    Phantom Switches

    About 2 months we had to get rid of 2 switches (3com 4226t). This morning I was going through some wireshark/ethereal captures and noticed that all of my switches are broadcasting for the IP's of the two switches that have gone, and doing it quite often. Since the switches were removed, all of our switches have had software updates and have been totally powered down (power cut). They all have identical config's so does anyone have any ideas what could be causing this?

    Who has 10.0.2.250? Tell 10.0.2.XX

  2. #2
    richard.thomas's Avatar
    Join Date
    Sep 2007
    Posts
    491
    Thank Post
    5
    Thanked 11 Times in 10 Posts
    Rep Power
    16
    Maybe they're missing their friends? :P

    I'm presuming those switches haven't been replaced or the new switches don't have the same IP, Have you got any of the 3com management software installed anywhere?

  3. #3

    Join Date
    Mar 2007
    Location
    Smethwick
    Posts
    49
    Thank Post
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    No they havent been replaced, they and their IP no longer exist. I have 3NS installed on my laptop, nowhere else though. I just cant think what could be looking for them....

  4. #4

    Join Date
    Aug 2005
    Location
    London
    Posts
    3,154
    Thank Post
    114
    Thanked 527 Times in 450 Posts
    Blog Entries
    2
    Rep Power
    123
    I've seen something similar before. Somewhere we have something that's trying to contact IP 10.0.0.3 - this hasn't existed for a long time but there are ARP packets for the address which I can't track down :-(

  5. #5
    ricki's Avatar
    Join Date
    Jul 2005
    Location
    uk
    Posts
    1,475
    Thank Post
    20
    Thanked 164 Times in 157 Posts
    Rep Power
    52
    HI

    I dont know if this helps but you can flush switches like the routing table and the arp cache. Have a look at http://support.3com.com/infodeli/too...750-0aaa01.pdf

    I dont know if this helps any.

    Richard

  6. #6

    Join Date
    Mar 2007
    Location
    Smethwick
    Posts
    49
    Thank Post
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    i've already tried deleteing all the learned addresses on the switches, it hasn't helped. I will try to flush them through telnet when I get in tmrw and i'll post the outcome here

    Thanks

  7. #7

    Join Date
    Mar 2007
    Location
    Smethwick
    Posts
    49
    Thank Post
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    didnt do any good

SHARE:
+ Post New Thread

Similar Threads

  1. Need 2 switches
    By button_ripple in forum Hardware
    Replies: 5
    Last Post: 31st March 2008, 11:11 PM
  2. Anyone using Dell Core switches/edge switches.
    By tosca925 in forum Wireless Networks
    Replies: 13
    Last Post: 6th February 2007, 09:10 AM
  3. Switches
    By wesleyw in forum General Chat
    Replies: 1
    Last Post: 30th January 2007, 10:34 AM
  4. KVM Switches
    By pickman in forum Hardware
    Replies: 2
    Last Post: 17th November 2005, 12:07 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •