Newsgroup: it.comp.os.win.xp
Titolo: esplora risorse lento se attaccato alla lan

Ho un problema che mi perseguita da tempo (XP PRO SP2), un'enorme
lentezza in tutte le operazioni di windows explorer (per esempio apro
risorse del computer e prima di mostrare le varie partizioni ci mette 20
secondi); di recente ho scoperto che basta scollegare il PC dalla LAN e
tutto va a meraviglia. Che può essere? Ho provato a modificare ogni tipo
di impostazione TCP/IP senza successo.
Grazie per qualunque aiuto
-- 
Posted via Mailgate.ORG Server - 
http://www.Mailgate.ORG

Hai provato con qualche sniffer per capire di che cosa si tratta ???
Giovanni Rastelli

 Hai provato con qualche sniffer per capire di che cosa si tratta ???
Hai consigli su cosa o come fare? Grazie


ho anche provato a terminare uno per uno tutti i processi e servizi, ma
senza successo. Poi stacco la lan (o fisicamente, oppure basta anche
disabilitarla) e tutto è ok


devi utilizzare ethereal (o programmi simili), fare un capture
collegandoti alla rete con uno switch (non un hub!) e analizzare quello
che viene catturato: sorgente, destinario, protocollo,...
poi vediamo...
giovanni rastelli

oppure se non sei espertissimo, ti installi un personal firewall
(kerio, sygate,...) e analizzi quello che viene bloccato
giovanni rastelli

 ha scritto nel messaggio 
news:b1970dca77c181727da...@mygate.mailgate.org...


 tutto va a meraviglia. Che può essere?
E' una cosa che capita spesso se si usano unità di rete mappate.
Se ne hai, prova a togliere la mappatura, riavviare, e vedi se cambia 
qualcosa.
Ciao
Alberto
-- 
I have a dream that my four little children
will one day live in a nation where they
will not be judged by the color of their skin
but by the content of their character.

 collegandoti alla rete con uno switch (non un hub!) 
Fatto :)
Fino a quando non apro esplora risorse non succede nulla, poi quando lo
apro il programma inizia a trovare dei pacchetti.
Il mio PC è 192.168.0.78, assegnato da DHCP
Ecco il risultato dell'analisi:
No.     Time        Source                Destination           Protocol
Info
      1 0.000000    192.168.0.78          192.168.0.255         NBNS
Name query NB CARLA<20>
Frame 1 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
      2 0.001795    192.168.0.78          192.168.0.255         NBNS
Name query NB CARLA<00>
Frame 2 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
      3 0.736965    192.168.0.78          192.168.0.255         NBNS
Name query NB CARLA<20>
Frame 3 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
      4 0.737011    192.168.0.78          192.168.0.255         NBNS
Name query NB CARLA<00>
Frame 4 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
      5 1.486977    192.168.0.78          192.168.0.255         NBNS
Name query NB CARLA<20>
Frame 5 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
      6 1.487023    192.168.0.78          192.168.0.255         NBNS
Name query NB CARLA<00>
Frame 6 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
      7 2.237421    192.168.0.78          192.168.0.255         NBNS
Name query NB CARLA<00>
Frame 7 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
      8 2.986988    192.168.0.78          192.168.0.255         NBNS
Name query NB CARLA<00>
Frame 8 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
      9 3.736999    192.168.0.78          192.168.0.255         NBNS
Name query NB CARLA<00>
Frame 9 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     10 4.498020    192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<20>
Frame 10 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     11 4.498056    192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<00>
Frame 11 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     12 5.237020    192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<20>
Frame 12 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     13 5.237065    192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<00>
Frame 13 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     14 5.987026    192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<20>
Frame 14 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     15 5.987069    192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<00>
Frame 15 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     16 6.737379    192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<00>
Frame 16 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     17 7.487046    192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<00>
Frame 17 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     18 8.237056    192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<00>
Frame 18 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     19 8.991996    192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<00>
Frame 19 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     20 9.737074    192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<00>
Frame 20 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     21 10.487080   192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<00>
Frame 21 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     22 11.240295   192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<00>
Frame 22 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     23 11.987099   192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<00>
Frame 23 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     24 12.737113   192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<00>
Frame 24 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     25 13.490414   192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<00>
Frame 25 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     26 14.237137   192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<00>
Frame 26 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service
No.     Time        Source                Destination           Protocol
Info
     27 14.987133   192.168.0.78          192.168.0.255         NBNS
Name query NB UNDER03<00>
Frame 27 (92 bytes on wire, 92 bytes captured)
Ethernet II, Src: BelkinCo_6b:6d:e1 (00:30:bd:6b:6d:e1), Dst: Broadcast
(ff:ff:ff:ff:ff:ff)
Internet Protocol, Src: 192.168.0.78 (192.168.0.78), Dst: 192.168.0.255
(192.168.0.255)
User Datagram Protocol, Src Port: netbios-ns (137), Dst Port: netbios-ns
(137)
NetBIOS Name Service


 LAN>>Ignora server proxy per indirizzi locali?
Non è selezionabile, dato che non ho "utilizza un server proxy per le
connessioni LAN" (comunque, se anche lo attivo e poi metto
l'impostazione che suggerisci non cambia nulla)


 qualcosa.
Ahimè, non dico di essere un profano, ma probabilmente le reti non sono
il mio forte... non so cosa sia una mappatura; la nostra rete è molto
semplice, niente domini, un workgroup
Grazie


 semplice, niente domini, un workgroup
Le mappature sono quelle cose che si usavano per le vecchie 
applicazioni, che non erano in grado di gestire i percorsi di rete, del 
tipo che la cartella \\server\risorsa_condivisa viene vista da un 
client come K:
Se ne hai, prova a toglierle e, dopo un riavvio, a vedere se hai 
miglioramenti.


 miglioramenti.
Ho solo sul desktop dei collegamenti ad alcune cartelle di rete... tutto
qui, nessuna vecchia applicazione che abbia bisogno di mappature; e
comunque la cosa si verifica anche provando ad accedere da altri utenti,
anche appena creati.


 poi vediamo...
ho eseguito e analizzato... nessuno riesce a capire quale possa essere
il problema?
Grazie


hai detto che succede quando apri un programma ("poi quando lo
apro il programma inizia a trovare dei pacchetti")... quale ?
Ti inoltro un thread che secondo me ti può interessare
http://groups.google.it/group/it.comp.reti.locali/browse_frm/thread/3a8003fd0337ef26
in particolare:
"Io imposterei LMHOSTS (se non puoi installare un WINS/DNS) ed
eliminerei 
NetBeui il prima possibile"
Giovanni Rastelli

 apro il programma inizia a trovare dei pacchetti")... quale ?
Esplora risorse of course :)


 NetBeui il prima possibile"
NetBeui non mi sono mai sognato di installarlo; LMHOSTS invece non so
come si configura...
