SGE2000 relay DHCP problem

Similar Questions

• Using to relay DHCP on LAN remote IPSec VPN WRVS4400N

  Hello

  I have a WRVS4400N. I want to know if it is possible to configure the remote relay DHCP WRVS4400N to find a DHCP server on the local network. The local network is 192.168.2.0/24, and the Remote LAN is 192.168.1.0/24. I am entered the field of relay DHCP server 192.168.1.100 but my local PC does not get an IP address. So, I would like to than the local PC to get an IP from DHCP address 192.168.2.x server remote (LAN) through the IPSec VPN tunnel. Is this possible?

  The IPSec tunnel works. I ping the 192.168.1.100 remote DHCP server, if the local PC, a static IP address 192.168.2.x I have the configuration of the DHCP server with an IP of 192.168.2.x/24 range.

  The remote VPN router is a Netgear FVS114.

  Thank you

  NIC

  The wrvs4400n, you cannot do the dhcp relay in the vpn tunnel.  You may need to get a business for which solution or a connection point to point for both networks on the same local network configuration.

• Relay DHCP over VPN

  Hi guys,.
  I have a problem with the implementation of DHCP relay mode on my VPN.
  The VPN works fine and I can access the remote router, printers, no etc. via their internal IP (192.168.0.xxx) no problem. My setup is as follows.

  A SRX5308 based in the United Kingdom with DHCP activated using ip/subnet addresses varies 192.168.0.50 - 192.168.0.100/255.255.255.0. The router has an ip address 192.168.0.1 and a reserved/static parameters of 192.168.0.2 to 192.168.0.40.

  A SRXN3205 based in France with initial settings of DHCP enabled using ip/subnet addresses varies 192.168.10.2 - 192.168.10.20/255.255.255.0. The router has 192.168.10.1 IP address.

  The VPN is set up through 2 COMPLETE domain name addresses using th VPN wizzard ends in order to define the policies and works fine without errors or school drop-outs.

  The problem of the french side. When I enable DHCP relay mode in the SRXN3205 it starts ok but do not relay the IP addresses of the United Kingdom.

  Any ideas?

  Just be aware that it is not really a good idea to run DHCP via a VPN, as if for some reason any VPN breaks down, computers on the remote site will not be able to get an IP address & the entire network it could enter the crisis...

  Personally, I use DHCP on the site with the server and I use static, remote sites. I could probably use a local DHCP server on each site, but for the number of computers involved, using static has been easier.

• Satellite C870-1J6 wired LAN DHCP problems

  Hi all

  Here, I have a new laptop C870-1J6, which makes my life miserable. It won't start not reliable PXE, and the network card also does not start in Windows.

  On a cold start the PXE boot Gets an address dhcp fine most of the time, but a warm reboot fails most of the time.
  In windows this NIC also does not start. After five to ten minutes, he finally gets an address from the DHCP server. Rest of the network works fine.

  No points for guessing the manufacturer of the network card, of course, there a realtek :-(
  "RTL8102E/RTL8101E PCI Express Fast Ethernet controller.
  PCI ven: 10EC, dev: 8136

  None of the solutions, or can send Toshiba somehow? because I don't think I can do a lot on the PXE problem myself.

  At first, I have to say that I m really wondering why you have problems of LAN under Windows.
  Have you noticed these LAN issues from the first day of use?
  Are you using the original pre-installed OS that you got with your laptop or a facility clean or even company?

  Maybe stupid question, but I assume that LAN is set as first boot device, right?

• Trek PR2000 DHCP problems, maintains a drop connections, perhaps workaround

  Hello!

  A few days ago, I bought the new Netgear Trek PR2000 mobile wireless router. Goal was to have a point of contact for all my devices while traveling and be able to connect to a hotspot or wifi in the hotel.

  Configuration has been fine and I was able to connect to my home network in wireless client mode. My router is a TP-Link TL-WR1043ND running OpenWrt 12.09 Attitude Adjustment, wifi with WPA2-AES, DHCP service.

  The Trek has been able to connect, and the whole system was running. Unfortunately, I realized, that the Trek has kept falling connections every 3-5 minutes with the genius of Netgear annoying pop up and try to re-establish a connection. Sometimes it worked, then the Trek cannot connect at all.

  Since I read that OpenWrt Attitude Adjustment can be problems with some wifi connections, I have improved my WR1043ND barrier breaker. The connection drops continued, including OSX almost every minute. The WR1043ND showed various DHCP-wifi-a failed-to-recognize-errors and in his diary.

  After trying all possible setting changes in the Trek-config (and shortly before returning the Trek), I found something as a workaround. In the Trek-config, I disabled the DHCP Server for the LAN area and assigned static IP addresses to connecting clients. Well at least so far, it seems to work very well. No more connections, no more boring engineering arise not interrupted and try to reconnect, the system seems to work.

  But for now, I'm a little confused as to the reason. In my view, the Trek connects to a hotspot and gets an IP address assigned by DHCP from hotspot. Then the Trek uses NAT to connect the clients attached to the internet. Actually the IP addresses of the DHCP assigned by the Trek to customers connected to the LAN area shouldn't affect hotspot NETWORK settings at all. Normally the IP address and private DNS settings are just for private clients LAN, aren't they? If I'm not completely wrong in my assumption, there could be a bug in the DHCP server on the hike or the way how dynamic the client LAN IPs are handled. From the point where I changed to static IP in the LAN client, there was no error message in the log of the WR1043ND.

  Strange thing... Maybe someone could correct me if my assumptions are wrong? BTW, I use the stock PR2000 Trek firmware (which is something like 1.0.0.9) since there is no other is available.

  Thank you.

  @hksteve I wish to inform you that the fix is now available from our download page.

  Feel free to update your firmware and provide feedback.

  Thank you!

• Windows XP DHCP problem when authentication network enabled

  I have a weird problem with Windows XP. Here's a few of my observations:
  -Computer Lenovo X 61 does not connect to a wireless network with a network (that is, Shared/128 b/WEP) authentication. He can never get an IP address from the DHCP server.
  -J' checked the authentication settings. They work in another computer.
  -If I give it a static IP address (less good family), it connects to the router. However, it is very slow and flaky.
  -It connects to open networks.
  -In addition, if I have a wireless and a wired connection to the computer, the wireless connection gets a quick DHCP server address. If I disconnect the wired connection, the wireless connection works perfectly.
  I tried to reinstall the NIC drivers, apply all updates for Windows and Lenovo SW and looked at the values in the Windows registry. Nothing seems to help.
  Any ideas?
  Computer is a Lenovo X 61 Windows XP Professional

  Hello

  In the past, password WEP engines were rather flaky.

  Try using the HEX string instead of the password.

  Or switch to WPA. WEP does not guarantee these days.

• Using 3500 as a Wireless Extender DHCP problem iPhone X 6

  Hello

  If all goes well, a simple question with a simple answer.

  Background:
  I stayed away from my DSL provider to a cable provider (VirginMedia). My new ISP is delivered with a modem cable (SuperHub 2 ac) and I connected the two devices together to extend my wireless home network. The cable modem, it's that the two routers are physically apart from others - connected through just their Ethernet ports - the technology of power line (Devolo dLAN 1200 +). Both routers have the same SSID broadcast, but on separate channels.

  Question:
  All devices in my house, the tablets of laptops, phones roam between the two areas wi - fi transparently * except * the iPhone 6 (iOS8.1), this works on the cable modem wi - fi, but not on the X 3500 wireless. I also have an iPad Mini 2 (also iOS8.1) which works too - aptly / wrong I have excluded iO8.1 as the issue. Oddly enough, the iPhone 6 connects to the x 3500 but isn't getting an IP address (the cable modem's DHCP server). Even if a static IP address doesn't help.

  Comments:
  If the X 3500 is configured as a DHCP server, the iPhoen connects (and gets an IP address), but then the default gateway is incorrect (gateway IP address of the X 3500 is not the modem cable remote). I can't find anywhere to specify a default gateway configuration.

  Question
  I start thinking, it is a problem with the iPhone 6 (know all other devices work correctly), but I want to just make sure I am the X 3500 configuration correctly. I am particularly interested in it if I use the right to 'Mode' ADSL / Ethernet. I tried 'Bridged Mode Only' (ADSL) and "Automatic DHCP only" (Ethernet), but does not seem to solve the problem of having the iPhone 6.

  any suggestions on how to fix / help would be most welcomed.

  Thank you!

  Thanks a lot for the details... Now I have a config that works also for the iPhone6.

  Basically, I connected the cable on the 3500 x port and the Ethernet port on the cable modem connected to the internet (via the Powerline). I then changed the network on the 3500 of 192.168.0.x x range (this is the range of network addresses used by the cable modem connected to the internet) to 192.168.168.x. Finally I activated the DHCP on the x 3500 which seemed to be the element that was killing the iPhone6.

  The iPhone6 connects now (which he always did), but with DHCP running on the x 3500 on the new range of network addresses of the iPhone 6 also get a valid IP address.

  Looks like that much just to get the iPhone 6 to work... never found a manual way to specify a default on the x 3500 gateway when you run DHCP (appears by default which is her own IP address - with no provision to change).

  Anyway... This works for now... I'll keep an eye on the iPhoen updates 6, just in case where the anomaly is something specific to the iPhone 6, if something changes I will post here.

  I have attached a picture for furture reference. Thanks again for your advice and support.

  

• Relay DHCP WAG325N

  Hello

  What I have;

  2601 ZyXEL router connected to the DSL line, wireless with DHCP activated

  Linksys router connected to the Zyxel router through the LAN 1 port and 1. LAN port configured as WAN

  Linksys router is able to get the IP address and the DNS server of the Zyxel router Info

  Connect to the Linksys router with IP and static DNS = server works Internet access, LAN access is not

  Connection to the router Linksys with Dynamic IP and DNS = no. IP/DNS addresses are assigned and so not Internet / LAN access.

  So it seams the releay DHCP does not work?

  Can someone help me with this? What I really want to do, is extend my Zyxel network with the Linksys router.

  Thank you

  If you configure the port 1 WAN port and connect port 1 to the Zyxel you use the WAG as a router. This means that there must be a separate LAN IP subnet on his side LAN.

  You can configure the WAG with 192.168.2.1/255.255.255.0 IP LAN address. Customer LAN connected to the WAG need IP addresses * 192.168.2 to work.

  The DHCP server on the Zyxel can do that. You can only use the function of relay in the WAG, if you have an advanced DHCP server who knows what IP addresses to assigned according to the source.

  You must enable the DHCP server in your configuration.

  It is probably best to put in place the WAG as a simple access point instead:

  1. do not configure port 1 port WAN.
  2. set the address LAN IP of the WAG on 192.168.1.2.
  3. turn off the DHCP server on the WAG.
  4. connect one of the WAG LAN ports to your Zyxel.

  Now you have a local network and the WAG as access point.

• Linksys WAP200 DHCP problem

  Hi, I have problems with the Linksys WAP200. When you use WPA/WPA2 Enterprise client hangs for about 60 seconds to try and obtain an IP address after a successful authentication. AccessPoints from other suppliers do not show this behavior.

  I did a tcpdump and comapred an accesspoint of another provider in the WAP200 work, and it seems that the WAP200 is reject bids that are sent via unicast DHCP. When the dhcp server sends an offer through broadcast after 65 seconds, it reaches the client and all is well.

  This is clearly buggy since the access point seems to be filtering the DHCP responses, is there an option to solve this problem?

  WPA is a known issue with the WAP54G as well. He breaks the wireless link entirely if you use Repeater/bridge modes. It is possible that Linksys a general isue with WPA in several similar products.

  So that it is resolved I feel Linksys just to be notified in writing. This also provides a written question should be wound.

  Concerning

  Fred

• DHCP problem

  I entered the IP address of my wireless router (the one you enter the internet browser to display the parameters) and be stupid, that I disabled the DHCP. After that, I couldn't even connect to my router or go that meet. A few hours later, I managed to restart (factory reset) the router and now I can enter the address IP DHCP is on. However, again, when you start the computer, it displays the message DHCP - and these hyphens are shown. Then start windows. I wanted to re - configure the TP link router and when I run the Setup from the CD, it says that the DHCP protocol is not enabled. I don't think that the computer is still recognizing the router when connected, assuming that the DHCP is disabled for the tunnel router. I tried a static IP (not sure if I was doing it well), but don't know what to do after that. I changed back to auto, but DHCP appears again as a problem when the computer is started and all trying to install my TP Link. I'm stuck and I have no idea what to do, please explain as simply as possible, because in fact, I went in things I don't understand.

  Thanks in advance

  Hi Adriana,

  DHCP allows your computer to automatically assign an IP address to turn it off, it is not recommended, unless you have your network settings. Please follow the instructions below to ensure that DHCP is enabled:

  1. click on Start and open the control Panel.
  2. click on network and sharing Center icon.
  3 al ' View your active networks section, click on the link to connect to the Local network .
  4. in the Local area connection status window, click the Properties button.
  5. highlight the Internet Version 4 Protocol option and click the Properties button. You may need to do the following for option Protocol Internet Version 6 as well.
  6. make sure obtain an IP address automatically is selected, as well as the DNS server to obtain an address automatically.

  If that did not resolve your problem, contact your router manufacturer or your internet service provider for the correct settings.

  Please keep us updated.

  Kind regards.

• Cisco AP 561 - DHCP problems

  Hello

  We have a customer with a number of AP561, there are 2 configured SSID, IP are provided for each network via dhcp, it is managed by a switch of small business and the other is managed by a windows client server.

  The issiue is that IP address are not always given to the devices, it will work for a while then just stop, until the AP is reset, this seems to be the same for several good AP so I don't think we have any physical AP questions, it can be solved in rest normally the AP.

  I see there are other discussions with people with the same problem, we have upgraded to the latest firmware 1.1.2.3 and the problem is still happening, force wireless is not a problem because the task bar displays full strength.

  Thank you...

  Hello Sir, I am sorry that you are having this problem. The latest firmware is actually 1.2.0.2

  Please download and update your Access Points. In the release notes, it is no indication that this new firmware solves the problem:

  CSCus23303: wireless client cannot get the IP address of the DHCP server after a period of time

  Eric Moyers
  .:|:.:|:. CISCO | Pre-sale technical support of Cisco | Expert on wireless

• SG300 and RVS4000 DHCP problems

  We recently deployed SG300-28 to replace a former 3Com switch.

  The installation program:

  In the SG300 switch router RVS400 and all workstations and server are connected.

  The problem:

  Windows 7 workstations are unable to get IP addresses of the server that is also connected to the switch.

  If, however, plug us into the workstations in the switch 4 ports on the back of the RVS4000 (the router), they get the IPs from the server without problem.

  It works perfectly with the old switch from 3Com for us it was classified in the category small business going.

  A few comments/advice appreciated! Thanks in advance!

  Pavol

  Pavol,

  Please make sure the SG300 switch running latest firmware 1.1.2.0, also new code then please switch factory reset after the upgrade. If you need assistance in upgrading please call Cisco Small Business Support Center @ 1-866-606-1866

  After upgrading please repost how these devices are connected and the configuration of your RVS4000 & SG300 switch series. Using RVS4000 for your DHCP server?

  Also make sure your RVS4000 is running latest firmware as well.

  Jasbryan

• VPN 3020 - relay DHCP and reservations

  Hi all

  I have a VPN concentrator 3020 in my structure and I am setting up allocation of an IP address by an external DHCP server.

  There is no problem in that: the client authenticates and then receives its IP address...

  the problem is that I need to configure a reservation on the DHCP server... the question is: which is the mac address, use the booking?

  I saw on the server the mac address of the dhcp request is something like this 0003a08a5308020e7f28f4e9a82000, which is the mac address of the external interface of the vpn concentrator, as well as many other characters, which does not seem to be related to the client or any other part of the network and change each time we connect...

  I think that I can not assign the static IP address on the hub, or GBA, because users authenticate to the VPN through MS Active Directory hub, so that they do not really exist on these devices...

  Anyone know how I can do this job?

  Thank you very much

  Marco

  You can do that with the ip address of the DHCP server.

  You can configure the LDAP server to assign the individual ip address depending on whether the user authenticates to the access customer vpn.

  You must configure the LDAP server for permission in the VPN concentrator, but also to enable 'Use authentication server address' for the assignment of an ip address.

• Wireless DHCP problem

  Hello

  I have a problem

  We have cisco ap 500 series, it was light, but we have migrated to standalone, now, the scheme is simple.

  We have a 2811 router and dhcp created on this subject, we also f0/0.30 virtual interface with the ip address of 10.10.30.1

  Switch into a single interface (trunk) goes to f0/0 interface of the router, and a single interface (access) goes to ap

  The access point, we have BVI interface with 10.10.30.10 and default route to 10.10.30.1

  So when connecting to our SSID, it connect but doestn receive DHCP and APIPA address is, please explain why the ap assigns ip clients

  Also ap config.txt here

  Thank you

  Keita,

  Yes, sorry, it was not clear. Make your interface trunk switchport. You follow these steps on the switch:

  (config-if) # switchport trunk dot1q encap switch

  (config-if) # switchport mode trunk switch

  Justin

  Sent by Cisco Support technique iPhone App

• Relay DHCP VPN site-to-site

  I am trying to configure DHCP relay by VPN, I've read various articles, but I can't understand it:

  The configuration is the following:

  Site1:

  DHCP server: 192.168.200.21

  ADSL Cisco 877 router
  Internal IP address: 192.168.200.12
  External IP address: 194.99.99.194

  Site2:

  Cisco ASA 5505 (behind a router ADSL 192.168.1.1, forwarded ports 500 and 4500 vpn to ASA)
  Internal IP address: 192.168.2.1
  External IP address: 192.168.1.2

  There is a working ipsec site to site vpn between site1 and 2.

  I want customers to get an ip address from the dhcp server in site1 site2.

  On the Cisco ASA:
  dhcprelay Server 192.168.200.21 outside
  dhcprelay allow inside
  Fixed route must be on or off?

  Cryptomaps:
  permit 192.168.2.0 192.168.200.0 (origin crypto)
  permit of 192.168.1.2 (added) 192.168.200.21
  192.168.2.1 permit 192.168.200.21 (added)

  Site1:

  On the Cisco 877:

  Cryptomaps:
  Allow 192.168.200.0 192.168.2.0 (origin crypto)
  Allow 192.168.200.21 (added) 192.168.1.2
  Allow 192.168.200.21 (added) 192.168.2.1

  What NAT entries should I use on the SAA and 877?

  This configuration will still work?

  Greetings Henk

  Hello Henk,

  First of all, Yes, it should work. I have seen work before and you have configured this way.

  Looks like you manage to solve the trickiest part, which is the definition of interesting traffic. It must include the ASA outside IP address and the address of the DHCP server as one ITS (Security Association) at both ends, and the description, you provided it seems that interesting traffic is already set up like that.

  On the side of the router, you will need to add a rule of NAT-Exemption of the DHCP address IP address external to ASA. It should be something like this:

  deny ip host 192.168.200.21 192.168.1.2

  Finally, the 'set road' command is used to change the default gateway sent from the DHCP server. Basically, if you set the 'road together' ASA will override default gateway sent by the DHCP server by its IP address of the interface inside. If you want that to happen then turn it on.

  Let me know if you have any doubts.

  Daniel Moreno

  Please note all messages that will be useful