Weird behaviour with multiple scopes and multiple VLANS

-

hi,

we have central dhcp server multiple dhcp scopes (data 1 - 10.1.1.0, data 2 - 10.1.2.0 & data 3 - 10.1.3.0). have remote building 3 seperate vlans individual gateways (vlan 1 gateway 1, vlan 2 gateway 2 etc).

now our issue when laptop plugged vlan (1,2 or 3), picks ip address ( e.g. 10.1.1.50) - far. when we unplug laptop, ipconfig/release delete entry dhcp scope, , plug laptop into a different vlan it retrieves same ip address before (10.1.1.50).

the 3 gateways cisco routers , have been set usual dhcp helper addresses.

anyone got ideas why our laptops refusing let go of ip address once have issued dhcp?

any thoughts appreciated.


ok, may need "weeds".  you may consider taking packet captures before , after relay agent on vlan in question verify if dhcp packets being updated correctly relay agent.  there nothing else on dhcp server at.

i assume dhcp server has no interfaces on of these vlans.

it knowledge base | itgeared.com |



Windows Server  >  Network Infrastructure Servers



Comments

Post a Comment

Popular posts from this blog

Error: 0x80073701 when trying to add Print Services Role in Windows 2012 Standard

-
hello, i'm getting error when trying add print services role in windows 2012 standard. i'm getting same error whether use gui or powershell. this new server install. the powershell error follows: add-windowsfeature : request add or remove features on specified server failed. installation of 1 or more roles, role services, or features failed. the referenced assembly not found. error: 0x80073701 at line:1 char:1 + add-windowsfeature print-services + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~     + categoryinfo          : invalidoperation: (@{vhd=; credent...name=localhost}:psobject) [install-windowsfeature],     exception     + fullyqualifiederrorid : dismapi_error__failed_to_enable_updates,microsoft.windows.servermanager.commands.addwind    owsfeaturecommand success restart needed exit code      feature result ------- ------...
Read more

Windows 2016 RDS event 1306 Connection Broker Client failed to redirect the user... Error: NULL

-
Image
i'm attempting setup windows 2016 rds standard deployment session hosting.  layout follows: rds01 - rds connection broker , web access ts02 - rds session host ts03 - rds session host domain these servers part of has (1) windows 2008 server , (2) windows 2016 servers acting dcs.  domain running @ windows 2003 functional level. servers on single routed network no firewall between them.  dns , ptr records servers exist , resolve on hosts.  servers can pinged each other. in other words, there no network connectivity issues. i've setup rds deployment several times w/ same results. the issue can login via rdweb interface on rds01 win10 desktop , connect published rdp desktop without issue (i.e. no error messages user) , no errors in logs.  when try directly rdp rds01, authenticate user (per event log) error stating user doesn't have access system.  in event log event id 1306 message of "remote desktop connection broker client faile...
Read more

Como saber quien entro a mi PC por la Red

-
quisiera saber si es posible, o existe forma de auditar quien accedió a mi pc vía red, es decir se que hay software que perminten auditar el file server para saber quien entro y modifico y/o borro un archivo... pero si alguien entro mi pc \\pcname\c$ hay forma de determinar que usuario entro al disco c de una pc en especifica y copio, modifico o borro un archivo...   y la otra pregunta cuales son las mejores herramientas para auditar la red y el file server   gracias una forma de detectar quien esta conectado tu pc es través del comando net user entra en cmd y escribes net user eso muestra los usuarios que están conectados en tu equipo en un momento determinado, se que no es lo que pides pero puede servir para descubir alguien en determinado momento. para que no este compartido le dan clic derecho sobre mi pc>propiedades>remoto y le desmarcan donde dice ''permitir que este equipo envíe invitaciones ...
Read more