Cisco WAN :: 1811W - DHCP Host Binding And Client Name
Dec 16, 2010
I am using a 1811W and CCP for configuration. I am trying to assign client names to devices on the LAN so that when a network scanner is used, the client name is displayed. I have attached part of the running config after a binding has been done. My assumption is that the scanner should now show 192.168.1.109 as name <Supermicro>, but the name is blank. Is this configured correctly for what I am trying to acheive?
I configured an DHCP server on cisco 3750 switch . Wher in w3750 gets connected to plain l2 switch 2960 on floor and machine gets connected to 2960 port. [code] Below is the description of problem:
-> The Cisco 3750 switch is the DHCP server. VLAN 108 is named as internet vlan.
-> Ports in Cisco 2960 switch has been configured with "switchport access vlan 108".
-> There were no problems at all and everything had been working smoothly.
-> 3 days back, users started complaining that they couldn't access the internet. Up on troubleshooting the issue, I found out that there was an issue with the DHCP server as the computer couldn't get any IP address at all. After setting static IP address, the internet started working again.
If I bind IP to MAc address reservation on core 3750 switch for some time of moment it works but after that machine gets unreachable .I restarted the 3750 switch and also all the 2960 switches over the weekend, however, the issue still hasn't been resolved yet. I did issue the command "clear ip dhcp conflict *", clear ip dhcp binding * but no joy at all.
WE HAVE cISCO 2960 SWITCHES. this switch acts as a dhcp server for the hosts connected to it. Provided mac based binding to the hosts, with enabled dhcp snooping and IP source guard per interface.' I have a problem with single host couldnt get an ip from dhcp as he binded based on mac: manualip. Here is my config: We have a VLAN99, 70 hosts connected should get an ip based on mac
switch(2960<config>interface vlan99 # ip address 10.10.14.2 255.255.255.0(code)
The above host amit (10.10.14.31 swhould get this ip bindded with mac) but hez not getting manual ip i.e 10.10.14.31, but if an ip excluded from the dhcp free, he can get that ip i.e automatic ip . every other host are getting the ips as binded in the pool manual ip. Checked with
**sh mac-address table dynamic vlan 99 () **clear ip dhcp binding * or 10.10.14.31 ** clear ip dhcp snooping binding *** clear ip dhcp conflict *
Tried to change pool names. All these troubleshoot couldn't make me success in providing amit an manual ip.
I am looking for a way to bind between a switch interface (cat 3750X) and a DHCP server reply.The switch can operate as the DHCP server .a PC connected to interface Gi 1/0/1 will lways get IP address 10.0.0.1 because it is connected to interface Gi 1/0/1, a PC connected to interface Gi 1/0/5 will lways get IP address 10.0.0.5 because it is connected to interface Gi 1/0/5 and so on... (no matter the source MAC address who sends the DHCP request).
I've configured ip dhcp snooping on several vlans I want to monitor and the binding table doesn't seem to be building.eature DHCP is on, global ip dhcp snooping is enabled, VLAN snooping is enabled on the vlan's I want to monitor and my trusted interfaces are also configured. Alas no binding entries in the table! 7K is running 4.2(6).
Do the problem caused by the modems itself or it just sign of faulty Ethernet switch (using 20 port Allied Telesis ethernet switch). Sometimes I cannot connect to internet due to "unidentified network" buy i can resolve this problem by restarting my modem + switch.
I have set up our network with an RV220W as gateway/Wifi-AP,VPN host.I am able to connect over the WWW with the windows 7 client laptops no problem, BUT ,I cannot from my office reach out to the laptops, it seems as if the tunnel is one way.The users can do anything they need, but I want to be able to connect to them to update their AVG or render remote assistance etc.Ping from client to home network no problem.Client laptop is invisible to any ping etc FROM the home network.
I am a real amateur here. I have configured a cisco VPN server, group and user on an SRP527W, ADSL2+ AnnexA, 802.11n ETSI, 2FXS/1FXO. I can connect from my PC with the Cicso VPN client on it (I get the banner) but I cannot ping into the local network at all. Once I do get in I will be using shares to work on files or VNC to take over a CAD workstation.I am sure I just have not set up something but I don't know where to look. My local network is 192.168.15.***
At work my desktop pc is a Novell client with WinXP. I wanted to use it a an ics host so I'd be able to connect my laptop to it with a cross wire so both computers could surf simultaneously using one source connection.I should probably note that I only have user privileges on my desktop and no admin privileges on it. It is my workplace policy so people don't install software that might end up being malicious.We also have Wifi at work but my at my office I have a low signal (1-2 bars) so I can disconnect my desktop, copy it's MAC address to my laptop and surf with my laptop instead. However, I need both computers, the desktop for work and PC for personal use.
My ISP waits a definite host name from me to return my white IP address via DHCP. Can I set this parameter in RV220W router? I don't find such parameter in IPv4 WAN configuration page.
In the past few days I have seen an odd named Client Host "The-Britannic" show up on my DHCP Active IP Table list. There is no device (that I'm aware of) with that name on my network. I delete it but it reappears, and is linked to the same IP (192.168.1.101) and MAC address everytime, so it appears to be a legitimate device. Although it looks like a legitimate device, it's not - so far as I know. I have added the MAC address to the blocked list (internet access / access restriction) to see if I or anyone in-house losese internet connectivity on any. So far, no. Searching various malware and spyware sites turn up nothing.
I realize the IP address is assigned by the router through the automatic DHCP assignement process. I do not broadcast my SSID and have a complex passcode assigned to both the wireless and internal network. Of course, that is no 100% guarentee that someone has not gotten in.I'm running a WRT54GL, all Windows 7 PC's on a home built network. I'll probably change all the passcodes (wireless and Windows Home Network) to see if that disallows access.
I have an ASA 5505 with software version 8.2(1). It is making DHCP requests for IPSec clients that connect to the ASA. The DHCP requests packets the ASA makes have an extra '00' appended to the hostname field, and the length field is the size of the hostname + 1. The DHCP server is Microsoft Server 2003 and this causes the hostname to be registered with an unknown character which appears as []hostname. Then when server 2003 tries to update the DNS record, it fails because of the invalid character in the hostname. Is there anyway to have the ASA have the correct length for the hostname field in the DHCP packet, or a workaround that will solve this problem?
I have an 1811 configured with dhcp scope and generally it works correctly. I have a host on the vlan/subnet that the scope is assigned that can receive an IP and all the specifics from the dhcp server. [code]
The host on the vlan/subnet should use the router as the dns server to resolve static hosts that are configured on the router itself. Can an IOS DHCP/DNS server do this?
we have a cisco ASA 5505 and are trying to get the following working:
vpn client (ip 192.168.75.5) - connected to Cisco ASA 5505
the client gets a specific route for an internet address (79.143.218.35 255.255.255.255 192.168.75.1 192.168.75.5 100) when i try to access the url from the client i get a syn sent with netstat when i try the packet tracer from the ASA i see the following:
I have a fresh install of LMS 4.0 on Windows Server 2008 Standart SP2. I have one NIC with static IP configuration. I also disabled DHCP client.The problem is follows: when I go to Inventory - Device Administration - Add/Import/Manage Devices, I always get this error:Error in communicating with DCR Server. DCR Server may be down. Please start the DCR Server and then refresh the page.Reload server/ Daemon Manager dont solve this.I try to beat this problem 2 days already. Second uninstall also doesnt solve the problem..
About a week ago I tried to clear log files which was 270gb (syslog.log) and after that restarted the server. And all inventory devices suddenly disappear! I could find it from search menu but cant access - cisco works said that there is no such a device in Device Repository or I havent enough right to view it (but i logged as admin). And after this i failed to add any device in Inventory. So I reinstall Cisco Works and get that DCR error..
I have a Cisco ASA 5505 I've configured as a DHCP server. I'm getting DHCP on workstations attached to the appliance, but I'm getting the following message when the appliance loads:DHCP Client: can't enable DHCP Client when DHCP Server/Relay is running on the interface DHCP: Interface 'inside' is currently configured as SERVER and cannot be changed to a CLIENT by a CLIENT featureI'm not trying to configure this thing as a client, so I'm not sure why the system is producing this message.
Can I have two asa firewall between dhcp client and dhcp server. if yes what solution i have to have to get dhcp leases. should i have to configure dhcp relay on both the asa.
We recently upgraded our 5505s to 8.2(5) 26 and noticed that each will crash after a cerntain amount of time. Some crash every 30 minutes other will crash every 4 to 8 hrs. The only difference would be the user's home ISP and/or home router, if they have one. They are configured with a dynamic dhcp IP address for the outside interface and the crash files starts with the following:When we downgrade back to 8.2(5) 13 the problem goes away. Any known bugs for this version? I haven't been able to find anything yet. We do have one 5505 that does not have this issues. The only thing that may be different is that it was never at 8.2(5) 13. We had downgrade it from a 8.3 version.
how I can get to the DHCP client table on a Cisco 891 Router ? We just upgraded our router from a WRVS4400N to the Cisco 891. THe WRVS4400N has the feature DHCP client table that I can see the Client host Name and IP address,Mac Address I have CCP and CCP express installed on my system?
I have intergrated wlc module in 2800 series cisco router, switch, cisco 1130 lightweight access point, i configured dhcp on router for wireless client, deal is that AP taking ip address from router its ok, but client cannot take dhcp, what im doing wrong? here is configuration of wlc router and switch
A Windows Server 2008 r2 with 2 internet ports. One (IP: 10.0.96.132) connected to company intranet and one (192.168.10.1) as DHCP server connect to several PCs (192.168.10.**) through a switch.The problem is the PCs (192.168.10.**) can ping the DHCP server (192.168.10.1) , while DHCP server (192.168.10.1) can not ping (192.168.10.**).How to configure the server so that all these PCs can access the intranet?
I recently upgraded from a WRT54G and am having issues with a Win7 PC with wireless-N. Initially I had it configured static at 192.168.100.100 and everything worked, but the speeds were miserable (I followed all the forum posts and recommended settings). I noticed in the Status section of the router pages that the system showed up with the correct MAC address, but the IP showed as 192.168.100.10, which is the same as the router. Assuming this might be causing issues, I set a reservation for the system at .100 and set the client to use DHCP. However, now it won't pull an IP address at all. The status pages show the client with the correct MAC address, but an IP of 0.0.0.0. I've verified the MAC address a dozen times and rebooted the router and the client dozens of times with no change. Even when I removed the reservation, the system won't pick up an IP. I have a wireless-G client that's pulling an IP fine, so I know it's sort of working. The wired LAN is working fine, too. There are no IP conflicts, either. I changed DHCP to 'Always Broadcast (compatibility for some DHCP clients), but no change there, either. The client sees the network and still has a good signal, but just won't grab an IP.
My AP get IP from 6509, but client cannot get dhcp from my dhcp pool for client, what is the reason?i have 3750g switch with integrated WLC, i connect it to 6509 I did all configs yesterday here is outputs
WLC Interface Name Port Vlan Id IP Address Type Ap Mgr Guest -------------------------------- ---- -------- --------------- ------- ------ ----- ap-manager LAG 10 172.16.10.100 Static Yes No globus LAG 20 172.16.20.254 Dynamic No No management LAG 10 172.16.10.99 Static No No service-port N/A N/A 0.0.0.0 Static No No
Currently we're providing DHCP to wireless clients from a dhcp pool on a cisco 6500. Due to new requirements we need to move to windows 2008 dhcp and when I test this on an unused WLC (7.0.235.0) the client doesn't get an address.
When I do a packet capture on the client I see it requesting dhcp but not getting any response from the server. When I do a dhcp debug on the client I see the same (see attached file).
This seems to me to be a server issue but the same server is supplying addresses to wired clients.
I just started having this problem yesterday. I was experiencing weird downloading/internet browsing issues and couldn't figure out what the problem was. I started looking around my router settings and noticed that in my DHCP Client list, my computer isn't in it. The router is hooked up to the computer, so it's not wireless. My phone and my girlfriend's laptop are listed, but the main computer isn't. It's especially causing problems with port forwarding. Downloads will stop because the port isn't showing as open. I'm running 64 bit Windows 7 and a Belkin N+ Wireless Router, model F5D8235-4.Firmware is up to date.
I have a Cisco 876 router running 12.4.(15)T5, configured as DHCP client. This works nicely.
A Cisco 886 router, running 15.1 software also works with the DHCP client. This also works but has the following strange beheaviour: In the running-config an ip route 0.0.0.0 0.0.0.0 <dhcp assigned address> appears. Also - some other static routes that are in the config using the dhcp keyword are duplicated with the dhcp-assigned address
Now - when a write mem is done, these dhcp-generated route entry's are stored in the startup-config...
This beheaviour is completely different and VERY unwanted. After a change from DHCP server the config will simply stop working, when a write mem was done at the first DHCP situation.
Should we stop using write mem commands when a DHCP client is active in IOS? Is it a bug? Is it a feature?
