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WiFi extender e DHCP


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A casa ho vari access point Cisco con relativo controller ma il segnale non arriva nel garage dove mi serve collegare un dispositivo WiFi, così ho recuperato un WiFi extender Xiaomi Mi WiFi Extender Pro che ho messo nel piano di mezzo.

Configurato, collegato al SSID WiFi propagato dai Cisco etc.

Collegando poi un client al extender, esso funziona solo se gli imposto IP statico, diversamente in DHCP il client fa la request, ma il Cisco gliela blocca e non la forwarda al DHCP server.

Purtroppo il client lato WiFi non può usare IP fisso.

Inutile riservare il MAC sul DHCP server... tanto manco gli arriva la richiesta.

 

Sapete come uscirne?

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Andrea Annoni

Bisogna vedere la configurazione di entrambi gli apparati......ma a naso potrebbe essere un problema del repeater....... oppure del cisco se ha la funzione di client isolation (dove si vede arrivare più richieste da un unico mac: quello del repeater)

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54 minuti fa, Andrea Annoni ha scritto:

Bisogna vedere la configurazione di entrambi gli apparati......ma a naso potrebbe essere un problema del repeater....... oppure del cisco se ha la funzione di client isolation (dove si vede arrivare più richieste da un unico mac: quello del repeater)

Il repeater NON ha il DHCP interno, ma chiaramente si appoggia ad un DHCP già sulla rete. Da me il DHCP è sul router.

Sul cisco purtroppo io non ho dimestichezza con il suo sistema operativo. Le cose basilari di fanno da interfaccia grafica sul WLAN Controller.

In pratica... l'extender si registra sul SSID del Cisco ed esso acquisisce un IP dinamico dal DHCP, ma parliamo del IP del extender.

Di fatto poi i client collegati al extender si registrano anche essi, ma il DHCP non va.

 

Ho fatto un altra prova: siccome anche sul WLAN Controller posso accendere un DHCP... dopo aver spento quello sul ruter l'ho acceso sul Cisco e nemmeno in questo modo vengono rilasciati gli IP ai client del Extender.

 

Per prova ho anche acceso un access point commerciale da 4 soldi, messo il DHCP su di esso, generato un SSID e registrato l'extender li sopra... e così invece funziona.

Quindi è proprio il Cisco.

 

Quindi mi suggerisci di documentarmi su questa CLIENT ISOLATION?

Provo...

 

grazie

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leggendo un po' se non ho capito male CLIENT ISOLATION è un concetto generico che poi Cisco traduce con la configurazione del

PEER TO PEER BLOCKING

e sempre se non capisco male ha a che vedere con la comuicazione tra wireless client.

Per esempio se è il SSID della rete GUEST, allora abiliti l'isolamento così di diversi client non si vedono tra loro

 

AIUTO !!!

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Andrea Annoni

Il client isolation nasce per far si che i client connessi all'AP non si vedano tra di loro. Funzione solitamente utile in ambito di accessi pubblici.

La gestione di questa funzione può avvenire in diversi modi......una può essere a livello mac; in questo caso

 

 

Cisco non lo ricordo a memoria; comunque potrebbe essere anche il WDS o il Multicast. Magari fai uno screen della sezione radio o un export della config

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in allegato lo show della wlan

(Cisco Controller) >show wlan 2


WLAN Identifier.................................. 2
Profile Name..................................... HOME_bridge
Network Name (SSID).............................. HOME_bridge
Status........................................... Enabled
MAC Filtering.................................... Disabled
Broadcast SSID................................... Enabled
AAA Policy Override.............................. Disabled
Network Admission Control
Client Profiling Status
    Radius Profiling ............................ Disabled
     DHCP ....................................... Disabled
     HTTP ....................................... Disabled
    Local Profiling ............................. Disabled
     DHCP ....................................... Disabled
     HTTP ....................................... Disabled
  Radius-NAC State............................... Disabled
  SNMP-NAC State................................. Disabled
  Quarantine VLAN................................ 0
Maximum Clients Allowed.......................... Unlimited
Security Group Tag............................... Unknown(0)

--More-- or (q)uit
(Cisco Controller) >clear
(Cisco Controller) clear>
(Cisco Controller) clear>
(Cisco Controller) clear>exit
(Cisco Controller) >show wlan 2


WLAN Identifier.................................. 2
Profile Name..................................... HOME_bridge
Network Name (SSID).............................. HOME_bridge
Status........................................... Enabled
MAC Filtering.................................... Disabled
Broadcast SSID................................... Enabled
AAA Policy Override.............................. Disabled
Network Admission Control
Client Profiling Status
    Radius Profiling ............................ Disabled
     DHCP ....................................... Disabled
     HTTP ....................................... Disabled
    Local Profiling ............................. Disabled
     DHCP ....................................... Disabled
     HTTP ....................................... Disabled
  Radius-NAC State............................... Disabled
  SNMP-NAC State................................. Disabled
  Quarantine VLAN................................ 0
Maximum Clients Allowed.......................... Unlimited
Security Group Tag............................... Unknown(0)
Maximum number of Clients per AP Radio........... 200
ATF Policy....................................... 0
Number of Active Clients......................... 1
Exclusionlist Timeout............................ 180 seconds
Session Timeout.................................. 86400 seconds
User Idle Timeout................................ 300 seconds
Sleep Client..................................... disable
Sleep Client Timeout............................. 720 minutes
Sleep Client Auto Auth Feature................... Enabled
Web Auth Captive Bypass Mode..................... Enabled
User Idle Threshold.............................. 0 Bytes
NAS-identifier................................... none
CHD per WLAN..................................... Enabled
Webauth DHCP exclusion........................... Disabled
Interface........................................ management
Multicast Interface.............................. Not Configured
WLAN IPv4 ACL.................................... unconfigured
WLAN IPv6 ACL.................................... unconfigured
WLAN Layer2 ACL.................................. unconfigured
mDNS Status...................................... Disabled
mDNS Profile Name................................ unconfigured
DHCP Server...................................... Default
DHCP Scope Name.................................. none
Central NAT...................................... Disabled
Central NAT Peer-Peer Blocking................... Disabled
DHCP Address Assignment Required................. Disabled
Static IP client tunneling....................... Disabled
Tunnel Profile................................... Unconfigured
EoGRE Override VLAN state........................ disable
EoGRE Override VLAN ID........................... 0
Quality of Service............................... Silver
Per-BSSID Rate Limits............................ Upstream      Downstream
Average Data Rate................................   0             0
Average Realtime Data Rate.......................   0             0
Burst Data Rate..................................   0             0
Burst Realtime Data Rate.........................   0             0
Per-Client Rate Limits........................... Upstream      Downstream
Average Data Rate................................   0             0
Average Realtime Data Rate.......................   0             0
Burst Data Rate..................................   0             0
Burst Realtime Data Rate.........................   0             0
Per-WLAN Rate Limits............................. Upstream      Downstream
Average Data Rate................................   0             0
Average Realtime Data Rate.......................   0             0
Burst Data Rate..................................   0             0
Burst Realtime Data Rate.........................   0             0
Scan Defer Priority.............................. 4,5,6
Scan Defer Time.................................. 100 milliseconds
WMM.............................................. Allowed
WMM UAPSD Compliant Client Support............... Disabled
Media Stream Multicast-direct.................... Disabled
CCX - AironetIe Support.......................... Enabled
CCX - Gratuitous ProbeResponse (GPR)............. Disabled
CCX - Diagnostics Channel Capability............. Disabled
Dot11-Phone Mode (7920).......................... Disabled
Wired Protocol................................... 802.1P (Tag=0)
Passive Client Feature........................... Disabled
Peer-to-Peer Blocking Action..................... Forward-Upstream
Radio Policy..................................... 802.11b and 802.11g only
DTIM period for 802.11a radio.................... 1
DTIM period for 802.11b radio.................... 1
Radius Servers
   Authentication................................ Global Servers
   Accounting.................................... Global Servers
      Interim Update............................. Enabled
      Interim Update Interval.................... 0
      Framed IPv6 Acct AVP ...................... Prefix
   Authorization ACA............................. Disabled
   Accounting ACA................................ Disabled
   Dynamic Interface............................. Disabled
   Dynamic Interface Priority.................... wlan
Local EAP Authentication......................... Disabled
Radius NAI-Realm................................. Disabled
Radius Authentication caching.................... Disabled
Mu-Mimo.......................................... Enabled
Security

   802.11 Authentication:........................ Open System
   FT Support.................................... Adaptive
   Static WEP Keys............................... Disabled
   802.1X........................................ Disabled
   Wi-Fi Protected Access (WPA/WPA2/WPA3)........ Enabled
      WPA (SSN IE)............................... Disabled
      WPA2 (RSN IE).............................. Enabled
      WPA3 (RSN IE).............................. Disabled
      WPA2/WPA3 Encryption Ciphers
         TKIP Cipher............................. Disabled
         CCMP128/AES Cipher...................... Enabled
         CCMP256 Cipher.......................... Disabled
         GCMP128 Cipher.......................... Disabled
         GCMP256 Cipher.......................... Disabled
      OSEN IE.................................... Disabled
      Auth Key Management
         802.1x.................................. Disabled
         802.1x-SHA2............................. Disabled
         PSK..................................... Enabled
         PSK-SHA2................................ Disabled
         CCKM.................................... Disabled
         FT-1X(802.11r).......................... Disabled
         FT-PSK(802.11r)......................... Disabled
         OSEN-1X................................. Disabled
         SUITEB-1X............................... Disabled
         SUITEB192-1X............................ Disabled
         OWE..................................... Disabled
         SAE..................................... Disabled
      OWE Transition Mode........................ Disabled
      OWE Transition Mode WLAN id................ 0
      Auto Key PSK .............................. Disabled
      FT Reassociation Timeout................... 20
      FT Over-The-DS mode........................ Enabled
      GTK Randomization.......................... Disabled
      SKC Cache Support.......................... Disabled
      CCKM TSF Tolerance......................... 1000
   Wi-Fi Direct policy configured................ Disabled
   EAP-Passthrough............................... Disabled
   CKIP ......................................... Disabled
   Web Based Authentication...................... Disabled
   Web Authentication Timeout.................... 300
   Web-Passthrough............................... Disabled
   Mac-auth-server............................... 0.0.0.0
   Web-portal-server............................. 0.0.0.0
   qrscan-des-key................................
   Conditional Web Redirect...................... Disabled
   Splash-Page Web Redirect...................... Disabled
   Auto Anchor................................... Disabled
   FlexConnect Local Switching................... Enabled
   FlexConnect Central Association............... Disabled
   flexconnect Central Dhcp Flag................. Disabled
   flexconnect nat-pat Flag...................... Disabled
   flexconnect Dns Override Flag................. Disabled
   flexconnect PPPoE pass-through................ Disabled
   flexconnect local-switching IP-source-guar.... Disabled
   FlexConnect Vlan based Central Switching ..... Disabled
   FlexConnect Local Authentication.............. Disabled
   FlexConnect Learn IP Address.................. Enabled
   Flexconnect Post-Auth IPv4 ACL................ Unconfigured
   Flexconnect Post-Auth IPv6 ACL................ Unconfigured
   Client MFP.................................... Optional
   PMF........................................... Disabled
   PMF Association Comeback Time................. 1
   PMF SA Query RetryTimeout..................... 200
   Tkip MIC Countermeasure Hold-down Timer....... 60
   Eap-params.................................... Disabled
AVC Visibilty.................................... Disabled
Flex Avc Profile Name............................ HOME_bridge
OpenDns Profile Name............................. None
OpenDns Wlan Mode................................ ignore
OpenDns Wlan Dhcp Option 6....................... disable
Flow Monitor Name................................ None
Split Tunnel Configuration
    Split Tunnel................................. Disabled
Call Snooping.................................... Disabled
Roamed Call Re-Anchor Policy..................... Disabled
SIP CAC Fail Send-486-Busy Policy................ Enabled
SIP CAC Fail Send Dis-Association Policy......... Disabled
KTS based CAC Policy............................. Disabled
Assisted Roaming Prediction Optimization......... Disabled
802.11k Neighbor List............................ Enabled
802.11k Neighbor List Dual Band.................. Disabled
802.11v Directed Multicast Service............... Enabled
802.11v BSS Max Idle Service..................... Enabled
802.11v BSS Transition Service................... Enabled
802.11v BSS Transition Disassoc Imminent......... Disabled
802.11v BSS Transition Disassoc Timer............ 200
802.11v BSS Transition OpRoam Disassoc Timer..... 40
802.11v BSS Transition Neigh List Dual Band...... Disabled
DMS DB is empty
Band Select...................................... Enabled
Load Balancing................................... Client-Count Based
Multicast Buffer................................. Disabled
Universal Ap Admin............................... Disabled
Broadcast Tagging................................ Disabled
PRP.............................................. Disabled
Fast Receive..................................... Disabled
11ax Downlink MU-MIMO............................ Enabled
11ax Uplink MU-MIMO.............................. Enabled
11ax Downlink OFDMA.............................. Enabled
11ax Uplink OFDMA................................ Enabled
Wifi Alliance Multiband Operation................ Disabled
11ax Target Wake Time............................ Enabled

 Mobility Anchor List
 WLAN ID     IP Address            Status                             Priority
 -------     ---------------       ------                             --------
802.11u........................................ Disabled

MSAP Services.................................. Disabled

Local Policy
----------------
Priority  Policy Name
--------  ---------------

QoS Fastlane Status.............................. Disable
Selective Reanchoring Status..................... Disable
Lobby Admin Access............................... Disabled

 Fabric Status
--------------

Fabric status.................................... Disable
Vnid Name........................................
Vnid............................................. 0
Applied SGT Tag.................................. 0
Peer Ip Address.................................. 0.0.0.0
Flex Acl Name....................................
Flex IPv6 Acl Name...............................
Flex Avc Policy Name.............................

U3-Interface................................... Disable

U3-Reporting Interval.......................... 30

 

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