WCS Showing one client associated to two AP´s
Hello,
I´m working on a wireless project that uses some LAP´s 1250, 3 controllers 5508 and a WCS software to manage everything. In one of the areas there are a lot of users, around 90, this area has 6 LAP´s. Some of those clients frequently migrate from one AP to the other. When this happens the WCS shows that client is associated with two AP´s. But when I check the clients list on the controllers, the client is only at one LAP. We are using WCS Version 6.0.181.0. Do you have any problem link this? Is it a WCS bug?
regards,
Felipe
I haven't run into this issue. This is just a guess but I'm wondering if the client association information is just delayed between WCS and the WLC after a client roams. You could check the client history and see the amount of time the client was associated to each access point and try to figure out what is going on.
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*Dot1x_NW_MsgTask_0: Nov 27 04:42:09.956: #DOT1X-3-INVALID_WPA_KEY_MSG_STATE: 1x_eapkey.c:864 Received invalid EAPOL-key M2 msg in START state - invalid secure bit; KeyLen 24, Key type 1, client 3c:a9:f4:4x:xx:xx
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Many thanksThanks for your reply Sandeep. Been working on it all afternoon with debugging.
To answer your question, sometimes I can connect and sometimes I cannot. This afternoon I haven't been able to connect much at all. 2 out of 20 times perhaps. Other users I can see are connected to the two access points in this office. This isn't just happening on my laptop but several laptops. Same symptom.
Heres the dot1x output I have captured from the debug of a FAILED association attempt.
(Cisco Controller) >show debug
MAC Addr 1.................................. 3C:A9:F4:36:1C:48
Debug Flags Enabled:
dot1x aaa enabled.
dot1x packet enabled.
dot1x events enabled.
dot1x states enabled.
(Cisco Controller) >*DHCP Socket Task: Nov 27 07:44:49.842: 3c:a9:f4:36:1c:48 apfMsRunStateInc
*apfMsConnTask_4: Nov 27 07:45:15.284: 3c:a9:f4:36:1c:48 Processing RSN IE type 48, length 22 for mobile 3c:a9:f4:36:1c:48
*apfMsConnTask_4: Nov 27 07:45:15.284: 3c:a9:f4:36:1c:48 Received RSN IE with 0 PMKIDs from mobile 3c:a9:f4:36:1c:48
*apfMsConnTask_4: Nov 27 07:45:15.284: 3c:a9:f4:36:1c:48 Found an cache entry for BSSID 20:bb:c0:c9:26:92 in PMKID cache at index 0 of station 3c:a9:f4:36:1c:48
*apfMsConnTask_4: Nov 27 07:45:15.284: 3c:a9:f4:36:1c:48 Removing BSSID 20:bb:c0:c9:26:92 from PMKID cache of station 3c:a9:f4:36:1c:48
*apfMsConnTask_4: Nov 27 07:45:15.284: 3c:a9:f4:36:1c:48 Resetting MSCB PMK Cache Entry 0 for station 3c:a9:f4:36:1c:48
*apfMsConnTask_4: Nov 27 07:45:15.284: 3c:a9:f4:36:1c:48 Setting active key cache index 0 ---> 8
*apfMsConnTask_4: Nov 27 07:45:15.284: 3c:a9:f4:36:1c:48 unsetting PmkIdValidatedByAp
*apfMsConnTask_4: Nov 27 07:45:15.284: 3c:a9:f4:36:1c:48 apfMsRunStateDec
*apfMsConnTask_4: Nov 27 07:45:15.284: 3c:a9:f4:36:1c:48 apfMs1xStateDec
*dot1xMsgTask: Nov 27 07:45:15.287: 3c:a9:f4:36:1c:48 Disable re-auth, use PMK lifetime.
*dot1xMsgTask: Nov 27 07:45:15.288: 3c:a9:f4:36:1c:48 dot1x - moving mobile 3c:a9:f4:36:1c:48 into Connecting state
*dot1xMsgTask: Nov 27 07:45:15.288: 3c:a9:f4:36:1c:48 Sending EAP-Request/Identity to mobile 3c:a9:f4:36:1c:48 (EAP Id 1)
*dot1xMsgTask: Nov 27 07:45:15.288: 3c:a9:f4:36:1c:48 Sending 802.11 EAPOL message to mobile 3c:a9:f4:36:1c:48 WLAN 3, AP WLAN 3
*dot1xMsgTask: Nov 27 07:45:15.288: 00000000: 02 00 00 3c 01 01 00 3c 01 00 6e 65 74 77 6f 72 ...<...<..networ
*dot1xMsgTask: Nov 27 07:45:15.288: 00000010: 6b 69 64 3d 54 50 49 2d 57 49 46 49 2c 6e 61 73 kid=PI-WIFI,nas
*dot1xMsgTask: Nov 27 07:45:15.288: 00000020: 69 64 3d 4d 2d 54 50 49 2d 51 4c 44 2d 44 43 30 id=M-PI-QLD-DC0
*dot1xMsgTask: Nov 27 07:45:15.288: 00000030: 30 31 2d 57 43 30 31 2c 70 6f 72 74 69 64 3d 31 01-WC01,portid=1
*dot1xMsgTask: Nov 27 07:45:29.326: 3c:a9:f4:36:1c:48 Failure sending WPA EAPOL-Key due to invalid state 0 to mobile 3c:a9:f4:36:1c:48
*dot1xMsgTask: Nov 27 07:45:29.326: 3c:a9:f4:36:1c:48 Unable to send WPA key to mobile 3c:a9:f4:36:1c:48
(Cisco Controller) >*dot1xMsgTask: Nov 27 07:45:29.326: 3c:a9:f4:36:1c:48 Unable to update broadcast key to mobile 3C:A9:F4:36:1C:48
*osapiBsnTimer: Nov 27 07:45:45.126: 3c:a9:f4:36:1c:48 802.1x 'txWhen' Timer expired for station 3c:a9:f4:36:1c:48 and for message = M0
*dot1xMsgTask: Nov 27 07:45:45.126: 3c:a9:f4:36:1c:48 dot1x - moving mobile 3c:a9:f4:36:1c:48 into Connecting state
*dot1xMsgTask: Nov 27 07:45:45.126: 3c:a9:f4:36:1c:48 Sending EAP-Request/Identity to mobile 3c:a9:f4:36:1c:48 (EAP Id 2)
*dot1xMsgTask: Nov 27 07:45:45.126: 3c:a9:f4:36:1c:48 Sending 802.11 EAPOL message to mobile 3c:a9:f4:36:1c:48 WLAN 3, AP WLAN 3
*dot1xMsgTask: Nov 27 07:45:45.126: 00000000: 02 00 00 3c 01 02 00 3c 01 00 6e 65 74 77 6f 72 ...<...<..networ
*dot1xMsgTask: Nov 27 07:45:45.126: 00000010: 6b 69 64 3d 54 50 49 2d 57 49 46 49 2c 6e 61 73 kid=PI-WIFI,nas
*dot1xMsgTask: Nov 27 07:45:45.126: 00000020: 69 64 3d 4d 2d 54 50 49 2d 51 4c 44 2d 44 43 30 id=M-PI-QLD-DC0
I can see that the WLC has tried to send a EAP-Request/Identity request to the client but no response back. I just don't understand why it works at times and why it doesn't.
It has the same issues on my guest network which is open authentication. Nothing has changed in regards to configuration and it has been working for years. Only thing that changed was a version upgrade to 7.5 three weeks ago.
Here is the debug output of the client MAC when attempting to association to the GUEST network.
(Cisco Controller) >debug client 3C:A9:F4:36:1C:48
(Cisco Controller) >*apfProbeThread: Nov 27 07:53:48.059: aggregated probe IE: TIMESTAMP
*apfMsConnTask_4: Nov 27 07:58:02.021: 3c:a9:f4:36:1c:48 Adding mobile on LWAPP AP 20:bb:c0:c9:26:90(0)
*apfMsConnTask_4: Nov 27 07:58:02.021: 3c:a9:f4:36:1c:48 Association received from mobile on BSSID 20:bb:c0:c9:26:91
*apfMsConnTask_4: Nov 27 07:58:02.021: 3c:a9:f4:36:1c:48 Global 200 Clients are allowed to AP radio
*apfMsConnTask_4: Nov 27 07:58:02.021: 3c:a9:f4:36:1c:48 Max Client Trap Threshold: 0 cur: 5
*apfMsConnTask_4: Nov 27 07:58:02.021: 3c:a9:f4:36:1c:48 Rf profile 600 Clients are allowed to AP wlan
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 Applying Interface policy on Mobile, role Unassociated. Ms NAC State 0 Quarantine Vlan 0 Access Vlan 0
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 Re-applying interface policy for client
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 0.0.0.0 START (0) Changing IPv4 ACL 'none' (ACL ID 255) ===> 'none' (ACL ID 255) --- (caller apf_policy.c:2164)
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 0.0.0.0 START (0) Changing IPv6 ACL 'none' (ACL ID 255) ===> 'none' (ACL ID 255) --- (caller apf_policy.c:2185)
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 apfApplyWlanPolicy: Apply WLAN Policy over PMIPv6 Client Mobility Type
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 In processSsidIE:4565 setting Central switched to TRUE
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 In processSsidIE:4568 apVapId = 2 and Split Acl Id = 65535
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 Applying site-specific Local Bridging override for station 3c:a9:f4:36:1c:48 - vapId 2, site 'default-group', interface 'guest'
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 Applying Local Bridging Interface Policy for station 3c:a9:f4:36:1c:48 - vlan 650, interface id 12, interface 'guest'
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 processSsidIE statusCode is 0 and status is 0
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 processSsidIE ssid_done_flag is 0 finish_flag is 0
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 STA - rates (8): 130 132 139 150 12 18 24 36 0 0 0 0 0 0 0 0
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 suppRates statusCode is 0 and gotSuppRatesElement is 1
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 STA - rates (12): 130 132 139 150 12 18 24 36 48 72 96 108 0 0 0 0
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 extSuppRates statusCode is 0 and gotExtSuppRatesElement is 1
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 0.0.0.0 START (0) Initializing policy
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 0.0.0.0 START (0) Change state to AUTHCHECK (2) last state START (0)
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 0.0.0.0 AUTHCHECK (2) Change state to L2AUTHCOMPLETE (4) last state AUTHCHECK (2)
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 Not Using WMM Compliance code qosCap 00
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 0.0.0.0 L2AUTHCOMPLETE (4) Plumbed mobile LWAPP rule on AP 20:bb:c0:c9:26:90 vapId 2 apVapId 2 flex-acl-name:
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 0.0.0.0 L2AUTHCOMPLETE (4) Change state to DHCP_REQD (7) last state L2AUTHCOMPLETE (4)
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 apfMsAssoStateInc
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 apfPemAddUser2 (apf_policy.c:333) Changing state for mobile 3c:a9:f4:36:1c:48 on AP 20:bb:c0:c9:26:90 from Idle to Associated
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 apfPemAddUser2:session timeout forstation 3c:a9:f4:36:1c:48 - Session Tout 65535, apfMsTimeOut '65535' and sessionTimerRunning flag is 0
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 Scheduling deletion of Mobile Station: (callerId: 49) in 65535 seconds
*apfMsConnTask_4: Nov 27 07:58:02.022: 3c:a9:f4:36:1c:48 Func: apfPemAddUser2, Ms Timeout = 65535, Session Timeout = 65535
*apfMsConnTask_4: Nov 27 07:58:02.023: 3c:a9:f4:36:1c:48 Sending Assoc Response to station on BSSID 20:bb:c0:c9:26:91 (status 0) ApVapId 2 Slot 0
*apfMsConnTask_4: Nov 27 07:58:02.023: 3c:a9:f4:36:1c:48 apfProcessAssocReq (apf_80211.c:7957) Changing state for mobile 3c:a9:f4:36:1c:48 on AP 20:bb:c0:c9:26:90 from Associated to Associated
*apfMsConnTask_4: Nov 27 07:58:02.026: 3c:a9:f4:36:1c:48 Updating AID for REAP AP Client 20:bb:c0:c9:26:90 - AID ===> 4
*apfReceiveTask: Nov 27 07:58:04.998: 3c:a9:f4:36:1c:48 0.0.0.0 DHCP_REQD (7) State Update from Mobility-Incomplete to Mobility-Complete, mobility role=Local, client state=APF_MS_STATE_ASSOCIATED
*apfReceiveTask: Nov 27 07:58:04.998: 3c:a9:f4:36:1c:48 0.0.0.0 DHCP_REQD (7) pemAdvanceState2 5716, Adding TMP rule
*apfReceiveTask: Nov 27 07:58:04.998: 3c:a9:f4:36:1c:48 0.0.0.0 DHCP_REQD (7) Adding Fast Path rule
type = Airespace AP - Learn IP address
on AP 20:bb:c0:c9:26:90, slot 0, interface = 1, QOS = 0
IPv4 ACL ID = 255, IPv
*apfReceiveTask: Nov 27 07:58:04.998: 3c:a9:f4:36:1c:48 0.0.0.0 DHCP_REQD (7) Fast Path rule (contd...) 802.1P = 0, DSCP = 0, TokenID = 15206 Local Bridging Vlan = 650, Local Bridging intf id = 12
*apfReceiveTask: Nov 27 07:58:04.998: 3c:a9:f4:36:1c:48 0.0.0.0 DHCP_REQD (7) Successfully plumbed mobile rule (IPv4 ACL ID 255, IPv6 ACL ID 255, L2 ACL ID 255)
*pemReceiveTask: Nov 27 07:58:04.999: 3c:a9:f4:36:1c:48 0.0.0.0 Added NPU entry of type 9, dtlFlags 0x0
*pemReceiveTask: Nov 27 07:58:04.999: 3c:a9:f4:36:1c:48 Sent an XID frame
*IPv6_Msg_Task: Nov 27 07:58:05.000: 3c:a9:f4:36:1c:48 Pushing IPv6 Vlan Intf ID 12: fe80:0000:0000:0000:f0a7:e03b:151a:3af8 , and MAC: 3C:A9:F4:36:1C:48 , Binding to Data Plane. SUCCESS !! dhcpv6bitmap 0
*IPv6_Msg_Task: Nov 27 07:58:05.000: 3c:a9:f4:36:1c:48 Link Local address fe80::f0a7:e03b:151a:3af8 updated to mscb. Not Advancing pem state.Current state: mscb in apfMsMmInitial mobility state and client state APF_MS_STATE_A
(Cisco Controller) > -
Wireless Client associated to 2 APs
I searched for my mac address in WCS and I recieved three results. See the attached screenshot. I am just curious why the second entry show I am associated to AP 00:00:00:00:00:00?
I do not have an AP named that.
Running 4.2.130 on all my WLC. Have a mis of WiSM and 4400 Controllers totaling about 10 WLCs.As Jeff mentioned, this is due to your client roaming and most likely due to wlc roaming. The information you see is not real time accurate, especially the wlc information of clients. You can see that 10.92.0.111 shows the client as still being authenticated which is not the case. So most likely what happens is the wlc is cached until flushed or cleared, but ap's keep the real time information, so the all zero's just mean that the wlc knows of the client but not yet flushed the old info and when it tries to detect which ap that user is on, there isn't one.... so it produces the all zero's.
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SRM "one-client" installation on ECC 6.0 EhP: Own client needed for SRM?
Hello experts,
i've a question concerning the SRM "one-client" installation on ECC 6.0 EhP4 as Add-On.
Is it possible to use SRM and ERP funtionality in a single client e.g. 001?
Or do we have to use different clients on the system like for SUS?
I haven't found any information regarding this topic in SAP ressources. I'm currently using CG "SAP SRM on One Client in
SAP ERP" Release date 2008 (found on marketplace/srm-inst --> srm7.0); SRM - Technical Basis Configuration (BuildingBlock S00/S03). I'm facing problems while going through the following customizing steps:
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There is a document which describes the steps for configuring one-client customizing on marketplace.
Link: [SAP SRM 7.0: SAP SRM on One Client with SAP ERP|https://websmp203.sap-ag.de/~sapidb/011000358700001201562009E]
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Let me explain why...
SRM Addon is installed and customizing is done in client 001 (same client as erp)
overview about defined logical systems:
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But One-Client szenario schould be possible in a single client or is SAPs One-Client more like One-System with differnet clients for SRM and ERP on the same machine?
Because of the above mentioned problem I assume that it's impossible to run ERP and SRM in the same Client number.
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BR, Patrick -
Wireless client association hostname
Hi all,
I'm having issue with the above unit. Currently I have 3 units of AIR-SAP2602E-S-K9 with 15.2(2)JB under 1 SSID. Currently all my clients connected to the AP does not have their computer hostname appearing under the client association. What it is showing instead is the hostname of the AP. For eg;
Device Type
Name
IP Address
MAC Address
State
Parent
VLAN
ccx-client
AP-HOSTNAME
XXX.XXX.XXX.XXX
Xxx.xXx.Xxx
EAP-Associated
self
1
Any Idea how I can get the hostname of the clients instead?If both the SSID and your client were configured for open, and you still couldn't associate, something doesn't jive. There are a couple of things that can cause an issue like this.
1) Is the MFP Client Protection "Required" under the advanced tab?
2) Is the WMM Policy "Required" under the QoS tab?
3) Is the "Aironet IE" enabled under the advanced tab of the SSID? That can cause problems for some clients.
Any of those (especially the first two) would cause a similar issue with not being able to associate, as having mismatched encryption types. -
Client Association,Authentication
Hey All,
In regards to the Assoiciation and Authentication I would just like to check that I am getting the process correct:
1. Authentication( open or shared) this is the client talking to the AP and saying that it is an 802.11 device ( kind of like an ethernet cable being pluged into a wall jack), if it has a PSK then it must have the right details to Auth with the AP. This is Auth'd to the AP but not the network, so no network traffic can pass just yet.
2. Association the client associates with the BSS/AP and data can now pass over to the AP.
3. 802.1x Authentication ( EAP) - if required
In the above Image the Associated status means it passed step 2 and the Auth means in passed 802.1x?
If this is the case in the above Image the Authed clients ( blue line) are the clients that have passed 802.1x? and the red line is clients that have passed stage 2?
ThanksHello,
In the client association process, access points send out beacons announcing one or more SSIDs, data rates, and other information. The client sends out a probe and scans all the channels and listens for beacons and responses to the probes from the access points. The client associates to the access point that has the strongest signal. If the signal becomes low, the client repeats the scan to associate with another access point (this process is called roaming). During association, the SSID, MAC address, and security settings are sent from the client to the access point and checked by the access point. Figure 3-6 illustrates the client association process.
Figure 3-6 Client Association
A wireless clients association to a selected access point is actually the second step in a two-step process. First, authentication and then association must occur before an 802.11 client can pass traffic through the access point to another host on the network. Client authentication in this initial process is not the same as network authentication (entering username and password to get access to the network). Client authentication is simply the first step (followed by association) between the wireless client and access point, and it establishes communication. The 802.11 standard specifies only two different methods of authentication: open authentication and shared key authentication. Open authentication is simply the exchange of four "hello" type packets with no client or access point verification, to allow ease of connectivity. Shared key authentication uses a statically defined WEP key, known between the client and access point, for verification. This same key might or might not be used to encrypt the actual data passing between a wireless client and an access point based on user configuration.
http://www.ciscopress.com/articles/article.asp?p=1156068&seqNum=3 -
Ath00: STA : Client associated/disassociated
I know this has been asked before, but none of the threads seem to give an answer (that I can find anyway).
The OR engineers have visited today to sort out my capped download speed, which they have done (as per my post in a different thread).
However, my HH5 log is full of the following:
17:56:57, 30 Apr.
ath10: STA 38:aa:3c:39:cc:fb IEEE 802.11: Client disassociated
17:56:57, 30 Apr.
ath10: STA 38:aa:3c:39:cc:fb IEEE 802.11: Client associated
17:56:46, 30 Apr.
ath00: STA 38:aa:3c:39:cc:fb IEEE 802.11: Client disassociated
17:56:46, 30 Apr.
ath00: STA 38:aa:3c:39:cc:fb IEEE 802.11: Client associated
17:56:31, 30 Apr.
ath10: STA 38:aa:3c:39:cc:fb IEEE 802.11: Client disassociated
17:56:31, 30 Apr.
ath10: STA 38:aa:3c:39:cc:fb IEEE 802.11: Client associated
17:56:20, 30 Apr.
ath00: STA 38:aa:3c:39:cc:fb IEEE 802.11: Client disassociated
17:56:20, 30 Apr.
ath00: STA 38:aa:3c:39:cc:fb IEEE 802.11: Client associated
17:56:06, 30 Apr.
ath00: STA 38:aa:3c:39:cc:fb IEEE 802.11: Client disassociated
17:56:06, 30 Apr.
ath00: STA 38:aa:3c:39:cc:fb IEEE 802.11: Client associated
As you can see, that is only one minutes worth only (I didn't think it necessary to fill an entire page or two)!
The question is, is this 'normal' behaviour - I am guessing not? Oddly, the MAC address is that of my laptop, and that appears to be the only device affected. There is another laptop connected wirelessly, along with a games console, tablet, various phones etc, but they don't seem to be affected at all.
Additionally mine is the only laptop/device that regularly drops off the wireless network with DNS server not responding errors, although these errors do not correspond - datestamp wise - with any of the entries in the log as per the table above..
I have tried 'a lot' trying to rid myself of the DNS server errors, but coupled with the fact mine is the only device in the log, could this potentially be an indication the wireless card in the laptop is dying?Leg2ion wrote:
Additionally mine is the only laptop/device that regularly drops off the wireless network with DNS server not responding errors, although these errors do not correspond - datestamp wise - with any of the entries in the log as per the table above..
I have tried 'a lot' trying to rid myself of the DNS server errors, but coupled with the fact mine is the only device in the log, could this potentially be an indication the wireless card in the laptop is dying?
As an update, I tried splitting the two wireless signals apart, and giving them each a different SSID. I then connected to the 2.4ghz signal, (as I was getting the same errors on the 5ghz) and since then have had no disconnects, no DNS server errors, and the amount of log entires has reduced to what I would call reasonable.
So, I am guessing there is some sort of incompatability between my laptop and the hub using the 5ghz signal. Odd though as my tablet is connected to the same signal with no issues at all, and using InSSIDer mine is the only 5ghz wifi signal in the (local) area, no others being detected.
If anyone can shed any light on DNS server errors - when connected to a 5ghz wifi signal - I would be very interested. I have tried all sorts of fixes, from manually setting DNS server addresses in the card properties all the way through to using the basic old drivers through to the very latest. -
Client Association Activity Log?
I have seven AP1242s (Autonomous) configured for roaming and one client.
Is there a way to see the association activity of the client between APs?
In other words, if I move my client throughout the coverage area, I would to see a log that looks something like this:
11:30:31 associated with AP1
11:33:35 associated with AP1
11:35:40 associated with AP2
11:40:00 associated with AP3
Is this possible with autonomous APs and a really dumb client?
And I don't think the "show dot11 associations" command can do this right?
ThanksYes.. search in Google for SNMP walk.. u wil get n number of tools.. go for MIB browser or any other tool.. install the same on ur laptop.. then download the MIBS from the cisco.com and then add the MIBs in that tool and you will be able to get the data
Lemme know if this naswered ur question and please dont forget to rate the usefull posts!!
Regards
Surendra -
How to transfer file from one client to another client?
hello,
i have some questions and hope you all can help me..thanks a lot first..
Here are the questions:
i) How can i send a file from one client to another client using RMI?
ii) Does the client(sender) need to send the file to server, then server save it and then send it to another client(receiver)?
iii) If using RMI, a client can receive two files from same client(sender) or different client(sender) at a same time? how to do it? when both of the files come in from same port, how to differenciate them?
iv) For your information, i am doing the File Transfer Server-client application which sender can send any file to other client. Can you give me any ideas? thanks..
Last, thanks again..Your questions reflect some ambiguity in terms.
"Client" and "server" are commonly used in two different senses:
1. Technical sense: A client process makes requests, and a server process fulfills the request (provides a service).
2. IT sense: A client computer (process) makes requests of a server (computer) process, and the server (computer) processes the request.
In the first case, any computer might be a client, or a server, or both, depending on the processes being executed. In the second case, the computers are assigned some role.
So: If you wanted to, you could implement client/server processes communicating between two peer computers, using RMI.
This may not be what you wanted; if you really want to distinguish client and server computers, then the answer is that yes, you will probably put files into intermediate storage on the server computer.
Finally, you probably do not have to worry about port conflicts if you use RMI; while the initial client server contact is established through a registry operating on a standard port, the actual RMI communications is established using random ports, one for each link.
Maybe you are looking for
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