Server IP address issue?

i have 2008 server, server ip address 192.168.1.20 manually configure ip

dhcp and dns is working fine,

my issue is when some one connect blackberry device on my network its taking my server ip address 192.168.1.20

then my all next work is going down and sharing file not working ...

when i check my server dhcp its showing my blackberry device taking my server IP then i delete that entry and i reserve one ip address for that blackberry device ..

i dont know what happening to my network ..

my server ip address manually i configure then why blackberry device taking my server ip address ....

Comments

  • I would use a separate IP range for servers that doesn't overlap your DHCP scope. This way you'll eliminate this problem

  • you have have been given ARP subject concerns. it is the table routers keep in memory to connect hardware (MAC) addresses to IP addresses. On maximum switches and routers there's a command to view and additionally flush the ARP table and enable it rebuild. in case you are able to no longer get admission to the swap without postpone by some style of administration interface, you're able to might desire to reset (annoying boot). i've got faith your easy linksys has a recessed reset button, yet might desire to probable injury your config, so verify you write each and every thing down before attempting that. i can no longer remember ever having a issue rebooting Cisco routers. Now, whether it is a DHCP issue, it appears that evidently like the DHCP server is perplexed with the hub and sees it as one gadget. i've got in no way considered this ensue, yet seems probably. So may well be a server issue, in spite of the undeniable fact that it style of feels lots extra probably that it is the hub the two no longer relaying hardware suggestions wisely, or the swap no longer updating it is ARP table quickly sufficient. answer: verify "ifconfig -a" on unices (i think of Apple additionally) or "ipconfig /all" on homestead windows to get a glimpse of mac and ip settings, then DHCP settings on the server (which may well be your swap) for hire checklist and hire instances and optimal connections, stuff like that; make beneficial it is dispensing the excellent subnet mask -- too super of a mask, the less addresses you bought. verify the ARP table on any switches between you and the DHCP server. while you're linked to an ISP, then you surely may well be basically in a position to apply one or a handful of IP addresses, until eventually you're utilising NAT. One final element. I extraordinarily doubt it, in spite of the undeniable fact that it is a conflict of networks (i.e. you have acquaintances someway sharing your community and vice versa). annoying to diagnose in this web page and sorry for the overloaded answer, yet stable success. I style of went backwards; from complicated to easy, lol.

  • It sounds like you haven't reserved the staic IP address, so it is being redistributed.

    See technet http://technet.microsoft.com/en-us/library/cc75420...

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