Issue getting IP address with PC

Hi guys, I've a problem. I have an AX and it works pretty fine when I connect to it with my MBA. I can surf the internet and use the wifi speakers.
I have a problem when I try to connect my PC laptop.
It connects but I receive the message that no IP address has been given. So I cannot get to internt.
Any advice?
Thanks

I had a similar issue with my old network; what wireless security are you using?
I was using WEP encryption at the time, which i later found out does not go down well with Windows, and can cause the Windows computer to be refused an IP address. I then changed to WPA/WPA2 encryption and this works much better.
I tried using WPA2 encryption for a while, which also refused Windows an IP address.
So WPA/WPA2 was the go for me, hope this helps.

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[solved]Can't get IP address with DHCP over wifi

I try to connect my laptop to a network via wifi (WPA). I'm connected and the router also says that there is a computer connected to wifi. But then DHCP time out. The ethernet connection is working fine and I have no problem to get an IP address with it. I have no idea what is wrong...
# ifconfig [1]
eth0 Link encap:Ethernet HWaddr 00:0A:E4:D9:E1:9E
inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::20a:e4ff:fed9:e19e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:12984 errors:0 dropped:0 overruns:0 frame:0
TX packets:11611 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:8858571 (8.4 Mb) TX bytes:1271863 (1.2 Mb)
Interrupt:20 Base address:0xe400
eth1 Link encap:Ethernet HWaddr 00:15:00:2D:1A:AA
inet6 addr: fe80::215:ff:fe2d:1aaa/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:40 dropped:40 overruns:0 frame:0
TX packets:52 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:11417 (11.1 Kb)
Interrupt:20 Base address:0xe000 Memory:b0106000-b0106fff
#iwconfig
eth0 no wireless extensions.
eth1 IEEE 802.11bg ESSID:"lua"
Mode:Managed Frequency:2.462 GHz Access Point: 00:1D:6A:62:7C:B8
Bit Rate:54 Mb/s Tx-Power=20 dBm Sensitivity=8/0
Retry limit:7 RTS thr:off Fragment thr:off
Encryption key:XXXXXXXXXXXXXXXXXXXXXXXXXXX Security mode:open
Power Management:off
Link Quality=98/100 Signal level=-26 dBm Noise level=-85 dBm
Rx invalid nwid:0 Rx invalid crypt:40 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
#dhcpcd eth1 --debug [0]
dhcpcd[3570]: version 5.2.12 starting
dhcpcd[3570]: eth1: using hwaddr 00:15:00:2d:1a:aa
dhcpcd[3570]: eth1: executing `/usr/lib/dhcpcd/dhcpcd-run-hooks', reason PREINIT
dhcpcd[3570]: eth1: executing `/usr/lib/dhcpcd/dhcpcd-run-hooks', reason CARRIER
dhcpcd[3570]: eth1: reading lease `/var/lib/dhcpcd/dhcpcd-eth1.lease'
dhcpcd[3570]: eth1: discarding expired lease
dhcpcd[3570]: eth1: broadcasting for a lease
dhcpcd[3570]: eth1: sending DISCOVER (xid 0xe8ad5914), next in 3.31 seconds
dhcpcd[3570]: eth1: sending DISCOVER (xid 0xe8ad5914), next in 7.57 seconds
dhcpcd[3570]: eth1: sending DISCOVER (xid 0xe8ad5914), next in 16.46 seconds
dhcpcd[3570]: eth1: sending DISCOVER (xid 0xe8ad5914), next in 32.92 seconds
dhcpcd[3570]: timed out
Last edited by bzhb (2011-09-12 11:30:30)

Ok it was in fact my fault. I did configure iwconfig like with a WEP connection, and it was WPA... Strangely it was not rejected, so I assumed it was connected...

Cisco 891 not getting IP address with DHCP with latest IOS

Hi,
I have a few Cisco 891 routers that are configured as DHCP clients on the WAN interface.
For some reason when I boot the router with a late IOS, the router is not receiving an address.
It works just as expected with the older IOSes.
Any ideas of what changed?
This is how the interface is configured:
interface FastEthernet8
ip address dhcp
no ip redirects
no ip unreachables
no ip proxy-arp
duplex auto
speed auto
no cdp enable
This IOS does not work:
c890-universalk9-mz.154-3.M2.bin
While these do work:
c890-universalk9-mz.150-1.M7.bin
c890-universalk9-mz.151-2.T2.bin
c890-universalk9-mz.152-1.T1.bin
Doing a "show ip interface brief" shows that FastEthernet8 is unassigned with the affected IOS.
With the older IOSes there is an IP address.
I had to downgrade two routers due to this issue, and did not have plenty of time to troubleshoot.
Both of the routers are connected to DSL from the same ISP...
Anyone seen anything like this before?

Add another one to the list.
I have a MacBookPro3,1 that connects to WIFI no problem. It used to connect to ethernet when I originally bought it, however I've been using WIFI exclusively for the past 2 years.
Recently I had a need to connect via ethernet and it wouldn't work at home (apple airport router). I next tried connecting via ethernet at a friends house using a linksys WRT54G, no dice either. I have the computer in the lab today (University Network) and I get the same error. 3 different locations, 3 different routers, all same problem. It used to connect to home and university networks ethernet right away.
IP address assigned is 169.xxx.xxx.xxx - subnet - 255.255.0.0
no other info. It's showing up as connecting to the network, but unable to communicate with DHCP. It does work if I enter all of the information in manually.
At first I thought I had messed something up in networking preferences as I tend to play around with things alot. However I did a complete system format, and fresh install of OSX Lion and I still have the same problem, without any of my meddling around to confuse things.
What gives?

How can i get the address with drag and drop from address book into pages?

I want to creat a letter withe the new pages. Normaly it was possible to put the adress from the adressbook with drag and drop into the letter. So it was possible to create one letter with many different adresses. But now I didn't find this function any more. How to do ist now?
Withe best regards and I'm sorry for may bad english
Klaus

Sounds like you "upgraded" to Pages 5.
Apple has removed over 90 features from Pages 5.
http://www.freeforum101.com/iworktipsntrick/viewforum.php?f=22&sid=3527487677f0c 6fa05b6297cd00f8eb9&mforum=iworktipsntrick
Pages '09 should still be in your Applications/iWork folder.
Archive/trash Pages 5, after Exporting your files to Pages '09, and rate/review it in the App Store, then get back to work.
Peter

Get email address with Username

Hi all!!
Somebody knows how can I get the email address if I have the username? For example "srose" string?
ldap service?
Thanks a lot

You can use the Find User service.
This service will return a user object that will match your find criteria. The user object contains a bunch of property about that user and email is one of them.
Jasmin

Please help: Get IP address of a remote device (wifi kit) from DHCP router

Hi ppl,
I am about to get the IP address for the wifi kit which is connected to the same router with my PC.
I need to control my wifi kit through TCP client communication, but DHCP tends to assign new IP address to my wifi kit when connected to router.
Hence, i wish to write a java function to trace the IP address before starts the communication.
I am thinking to get the wifi kit's IP address based on the Hostname (name of the wifi shield):
As below:
InetAddress thatIp = InetAddress.getByName("Wiznet");
System.out.println("IP E:"+thatIp.getHostAddress());
But i don't think this is secure..
I attempt to research for getting IP address with MAC..
But have ambiguity on the result i found.
It stating i have to get the ARP table from router but it is not a good approach.
I have no luck for next finding on how retrieving the table with Java.
Hereby hope to have your advise how can i get the ip address of my wifi kit in a more dynamic and secure method..
is it using Hostname or MAC address or else...
many thanks.

hi... wish to have your advise again.
I tried to retrieve the arp table in java and attempt to extract the IP address based on MAC address for particular devise.
But i stuck with the substring... my code is as below:
Process result = Runtime.getRuntime().exec("arp -a");
     BufferedReader output = new BufferedReader
               (new InputStreamReader(result.getInputStream()));
     String line = output.readLine();
     while(line != null){
          if ( line.startsWith("default") == true ){
               System.out.println("is default");
               break;
     line = output.readLine();
     String ipAdd = line.substring(0, 18);
     String MACAdd = line.substring(24, 42);
     System.out.println(line.length() + " " + line + " " + ipAdd + " " + MACAdd );
i m trying to sub the IP and MAC accordingly.. but i got error saying
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 42
     at java.lang.String.substring(Unknown Source)
     at ExecTest.main(ExecTest.java:22)
i dun understand this! as since the length of LINE is 56 , why STRING INDEX OUT OF RANGE happen?!
please advise!!!

Getting IP Address in PowerBuilder 5

Hi,
How to get machines IP address using PB5, when google we found the below link
http://eric.aling.tripod.com/PB/tips/pbtip14.htm
As per the above link, we need to use WSOCK32.DLL and PBWS32.DLL(third party DLL ).
Is there any other way to get IP address with out using PBWS32.DLL(third party DLL ) in PB5?
Thanks,
Sundar

Sundar,
If you are tryting to get local IP address, this may be helpful for you...
Here is the script for your reference..
1) Save ipconfig result into .txt file.
of_save_client_ip()
Long ll_file_open , ll_count
FileDelete('C:\done.yes')
FileDelete('C:\client_ip.txt')
ll_file_open = FileOpen( "C:\client_ip.bat" , LineMode!, Write!, LockWrite!,Replace! )
FileWrite(ll_file_open, 'ipconfig')
FileWrite(ll_file_open,'echo done >> C:\done.yes')
FileClose(ll_file_open)
Run( 'C:\client_ip.bat >> C:\client_ip.txt' , Minimized!)
DO
// Pause
FOR ll_count = 1 TO 1000
Yield()
NEXT
LOOP UNTIL FileExists('C:\done.yes')
2) To get Local IP address
of_get_client_ip() return string
String ls_ipaddr = 'NO' , ls_dataline
Long ll_file , ll_read
ll_file = FileOpen('C:\client_ip.txt', LineMode!, Read!, Shared! )
DO
// Read the file
ll_read = FileRead( ll_file , ls_dataline)
// Look for IP Address. . . . . . . . . . . . : 000.00.000.111
IF Pos( ls_dataline, 'IP Address' ) > 0 AND Pos( ls_dataline, ':' ) > 0 THEN
ls_ipaddr = Trim( Mid ( ls_dateline , Pos( ls_dataline, ':' ) + 2 , Len(ls_dateline) ) )
EXIT
END IF
LOOP WHILE ll_read >= 0
FileClose(ll_file)
RETURN ls_ipaddr
Regards,
Jahir

WLC 5760 with internal DHCP server, clients no get IP address

Hi all,
I have 2 Cisco 5760 WLC (active-standby) IOS-Xe 03.03.03SE with one WLAN.
sh wlan summary
Number of WLANs: 1
WLAN Profile Name SSID VLAN Status
1 Invitados_ADSL Guest 905 UP
sh vlan
VLAN Name Status Ports
1 default active Te1/0/3, Te1/0/4, Te1/0/5, Te1/0/6, Te2/0/3
Te2/0/4, Te2/0/5, Te2/0/6
100 VLAN0100 active Te1/0/1, Te2/0/1
101 Planta_1 active
905 Internet active Te1/0/2, Te2/0/2
The DHCP server is internal.
Sometimes the clients no get IP address and the DHCP pool has IP addresses available.
The workaround done by me to solve the issue is “clear ip dhcp binding *”.
Some days later the problem appears again.
I see this bug with a similar problem:
NGWC blocks DHCP traffic if wireless broadcast disabled
CSCun88928
Description
Symptom:
Some clients set the BROADCAST flag on the DHCP Discover packet. This requires the DHCP server to reply with a broadcast.
In that case and if you are not using DHCP snooping on the 5760/3850, then the controller will block the return traffic unless you enable "wireless broadcast" which enables broadcast globally (and is thus not always desirable)
Conditions:
Seen on 3.3.2 IOS-XE
Workaround:
Use DHCP snooping with the "ip dhcp snooping wireless bootp-broadcast command"
OR
Enable "wireless broadcast" globally
My DHCP configuration is:
ip dhcp relay information trust-all
ip dhcp snooping vlan 905
ip dhcp snooping
ip dhcp excluded-address 172.16.0.1 172.16.0.19
ip dhcp excluded-address 172.16.1.250 172.16.1.254
ip dhcp pool Invitados
network 172.16.0.0 255.255.254.0
default-router 172.16.0.1
dns-server 212.66.160.2 212.49.128.65
lease 0 8
I see in Cisco documentation (http://www.cisco.com/en/US/docs/wireless/technology/5760_deploy/CT5760_Centralized_Configuration_eg.html) this configuration:
DHCP Snooping and Trust Configuration on CT5760
ip dhcp snooping vlan 100, 200
ip dhcp snooping wireless bootp-broadcast enable
ip dhcp snooping
interface TenGigabitEthernet1/0/1
description Connection to Core Switch
switchport trunk allowed vlan 100, 200
switchport mode trunk
ip dhcp relay information trusted ip dhcp snooping trust
interface Vlan100
description Client Vlan
ip dhcp relay information trusted
My question is,Do I have to add the command "ip dhcp snooping wireless bootp-broadcast enable" to solve the issue?
Thanks in advance.
Regards.
D

Yes, test it with the command you mentioned
ip dhcp snooping wireless bootp-broadcast enable
HTH
Rasika
**** Pls rate all useful responses *****

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Issue getting IP address with PC

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