Linksys Wireless Router :: Get E4200 To Not Provide Itself As DNS Server To DHCP Clients?
Dec 27, 2012
Is there a way to get the E4200 to NOT provide itself as a dns server to the DHCP clients? I have the unit set up to provide two dns servers to the clients, but the 4200 always provides itself as a third and it uses my cable providers dns servers. I am using a dns based filtering service to prevent certain material from being accessed within my network as the first two resolvers. So long as both or one of the provided servers is working it doesn't fall back to the unfiltered third, but I would prefer to remove it entirely.
The router always inserts its’ own address as the primary DNS server for the all DHCP clients even though you have set the DHCP server on the router to assign manual external addresses?
Oh I have a WRT310n v2 firmware v2.0.01 build 004
Let me elaborate a little so I am clear what I am saying. On the router setup page go to the section that is labeled “DHCP server settings” enter 3 static DNS servers. Say 2 Google and one open dns. 22.214.171.124 126.96.36.199 188.8.131.52
Apply your settings.
Release your ip on your workstation, then renew it. And look at your DNS, the routers address is still the first entry.
DNS Servers . . . . . . . . . . . : 192.168.1.1
I suspect this was probably a design decision so that they could allow a user to open their web browser and type something neat like [URL]. Which for the average user is fine and dandy. If my ISP didn’t suck and try to redirect everything to cached copies I probably wouldn’t have noticed it. But since I end up using the router for DNS and it picks up DNS from my ISP I end up getting Akamai IP addresses, and they have problems with SSL certs…. So you get errors.
I know I can go set the DNS server settings on the workstations. But I really don’t want to do this on all of my devices as they are mobile and switch networks, and on some networks not using the local dns breaks things. Like on the corporate network.
The e4200 1.0.03 DHCP server appears to be quite buggy. After configuring a static IP / reservation for a client which already had a dynamic IP from the pool, the e4200 continued to offer this client its pool IP. However, the DHCP client listing in the e4200 showed the client having the static IP even though it was still being offered that pool address.This may sound like user error, but I can assure you, it is not. I have had a very frustrating experience with this product, and rather than fool with tech support again, I ran `tcpdump -e -s1600 -n -vvvv -i eth0 port bootpc or port bootps` to absolutely rule out a mistake on my part, bug in the DHCP client, etc. I found that the client was always offered that old IP, even thought the e4200 status display showed the "new" static one, after doing a DHCPDISCOVER without requesting a specific IP. This condition persists across e4200 reboots even after having the client release its lease!I finally was able to resolve this by forcing the client to request the static IP from the e4200.This is unquestionably a bug in the DHCP server, and additionally, the user interface does not show the real state of the underlying DHCP leases held by clients which have static addresses / reservations. Troubleshooting this condition is well beyond the abilities of the average user.
I just bought a Linksys E4200v2 router and updated the firmware to 184.108.40.206551. The DHCP server is turned on however, it won't issue any IP addresses. I have to set IP reservations for all of my devices in order for the router to give them an IP address. This includes my printer, xbox360 and 2 computers. I'm also having this problem with the wired and wireless lan.
I just bought an e4200. I was using a LinkSys WRT54GS running DD-WRT alternative firmware.
One feature that I really liked in DD-WRT was the ability to assign static IP leases from the DHCP server. I liked having all of my devices running with a predictable, known IP address on my network. I have a Home Theater PC, and various controller applications that run on iPhones, etc. - some pretty homebrewed. Configuring the firewalls, etc. was much easier with IP address based controls.
Is there a way to achieve the same within the e4200's stock firmware?
On my new E4200v2, after I tried to move beyond the disappointment of Cisco removing Internet Access Policy entirely, I decided to give the stripped down Parental Controls a try.
Sadly, I didn't have any luck doing what I needed to do... block my Tivo's from accessing Youtube.
I enabled Parental Controls, Added the Target Devices (my Tivo's did show up), and added "Youtube.com" as blocked site #1. Saved. Entered the parental password when prompted. Even rebooted the router.
But Youtube wasn't blocked. So I added to the target list a non-Tivo device (a Macbook) for a reality check, and rebooted the router again... still no luck. Youtube still not blocked.
So then I started to wonder if their Parental Control depends somehow on the local DHCP server & Client list. Because my E4200 has DHCP Server = OFF (I have always used a Windows Server for DHCP).
I tried to call Linksys support to get this working, but after 45 mins, including escalation to senior engineer, they really were pretty useless (no real familiariarity with my problem) then they disconnected my call!
I just upgraded my in-laws network from a WRT54G to a E4200. It's working but I'm getting issues with the 5Ghz end. I've got both SSIDs using different names.. so its clear which I'm connecting to. I have a macbook pro which has N support and can see the 5GHz SSID.The issue I get is that when I connect to the 5Ghz SSID, the laptop cannot ping or connect to LAN clients on the 2.4GHz end. This includes SMB shares, a couple of devices with web interfaces and one machine running a VNC server. There is also issues with Internet access.. but only sometimes.
Say I have two terminals open.. one pinging Google and the other pinging one of the 2.4Ghz clients. If I connect to the 2.4Ghz SSID, I get both pings working fine. If I switch to the 5GHz SSID, the macbook gets its IP address but then the Google ping will work but the internal ping just keeps failing. The Internet issue.. looking back on the above example.. sometimes the Google ping will also fail. The mac also sometimes indicates that there is no Internet connection behind the wireless connection when this happens.
When I connect on the 5Ghz SSID, I get my LAN IP address from the router (ifconfig). I can also see the /etc / resolve.conf correctly populated on the macbook with thge gateway and DNS settings.For now, I'm just going to get them to only use the 2.4Ghz SSID and assume that a later release of the softeware will fix things.. it could be a compliance issue on the Apple/Cisco N support.
I've just set up my E4200 and none of my wireless N clients connect at full speed. Irrespective of what wireless settings I use they all seem to connect at around half speed. My laptop for example insists on connecting at 144.4 Mbps though it supports 300 Mbps. Periodically it will connect at 300Mbps, but the next time the I reconnect or I make a settings change on the router (irrespective of what the change is) the speed drops back to 144.4. Clients that support 150Mbps connect a consistent 65Mbps.I'm running FW 1.0.02, though the problem existed with 1.0.01 (I hard reset before and after upgrade) and I've tried re-flasing the 1.0.02 firmware.Any combination of channel, width, mode and security type etc doesn't seem to influence the performance. Nor does distance (the client above is 3ft from the router).My previous router was located in exactly the same place as the E4200 and I had a solid full speed connection all over the house.
E4200 Version 220.127.116.11047 disconnects my wireless clients intermittently. I am seeing it mostly on the 5Ghz band but that is where most of my clients are connected. I have all the setting in advanced tweaked per cisco best practice. It just seems to reset every so often. Wired connection is not disconnected.
I have a 4402 (version 7.0.235) working with 10 units of 1121 APs connected to it. The WLC is not configured to work in LAG mode. Physical portt #1 is connected to the Main Switch (trunk). I have 3 WLAN mapped to 3 Different VLAN and Everything (security and internal, external DHCP) is working swell...Now- I have connected Physical port #2 directly to an ADSL Router (giga port), Configured Port 2 as untaggedwith the proper IP details.I have configured this interface to receive DHCP from the ADSL Router and for some reason, Clients are not getting addresses.When I assign a Static address to my laptop I get internet access and all is nice. I tried configuring The WLC internal DHCP server (instead of the ADSL router) and that didn't work. It seems like a DHCP problem but I dont understand the source of the problem of think of the solution.When turning off the proxy settings I noticed that it worked. Is there anything to do with that? The problem was that after a while the other WLANs starting causing DHCP issues as well.
I set up my internet access by adsl modem as gateway, then RV042 as load balancer and dhcp server, security by MAC address restriction and static IP assignment. WAP 610N used as access point.works great for first few weeks, then somehow I can't access the network.I've been using linksys on my SOHO network, no problem before (RV042+WAP54g)
I've got an E4200v1 running 1.0.04 firmware with guest access enabled. I'd like to find out who is logged in using the guest access. Is there a way to get a list of the DHCP clients on the guest network? I'm able to do this for the non-guest access via the WEB interface's Status->Local Network->DHCP Clients Table page. But I can't find a similar table for the guest network.
I have an e4200 set up and working on fios as a pppoe router properly with a dozen devices connected to it via dhcp. The dhcp range i configured in the e4200 is 192.168.1 100 to start with, and a mask of 255.255.255.0.
All the dhcp devices connected to the router start with 192.168.1.1xx. My Dell Inspirion with Windows 7 has an ipv4 address of 192.168.15.2. I cannot figure out how it gets this address, even after I release and renew the address on the Dell.
Everything is working fine so I guess there is something I just do not understand.
When I'm in Setup -> Basic Setup -> click on DHCP Reservation, I don't see all entries I've created earlier but computers that connect still have the correct IP address on the network; I don't know if I can create additional entries if nothing appears
When I go to Status -> Local Network -> DHCP Client Table the list is blank but some computers are connected to the networkI'm using firmware 1.0.01 build 10 Feb 21, 2011, language = English, Firefox 4.0.1.Rebooting the router doesn't change anything, I can't see connected LAN equipment and DHCP Reservation is empty despite the fact I've created entries.Together with the "Access Restriction" which doesn't allow to block a computer from 10pm => 8am unless you create 2 rules + various issues with attached USB + 2.4Ghz signal that is far from optimal (never able to achieve more than 144-N-Mbps) and I ask myself if I will not contact the store where I purchased this unit and ask a refund (and buy something else from another brand...)
I have ten E4200 routers deployed in five library branches. In recent months, the E4200's in two branches have occasionally gone into a state where they are not always providing an IP address to both wired and wireless devices. Some devices will get an IP fine and others will not, The problem seems to move and the next day the same device will connect fine and others will not. A reset of the router usually clears the problem but it is becoming more frequent and bothersome. For some reason only two locations are effected.
- Firmware version is 1.0.02 build 13
- When I set devices up with static IP's they work fine, so the problem seems to be related to the DHCP service
- The WAN side of the network tests fine with no issues
- I've had these routers deployed for over a year and this problem just started in the past two months
- Routers and AP's are on different channels to prevent interference
- No nearby WiFi signals appear to be casuing any interference
I just purchased an E4200 router. I have four clients on my network and they are all set up for DHCP. I renewed their IPs and they all are connected. "Cisco Connect" reports that I have four clients connected. When I access the router and bring up the DHCP Client Table, there are no entries. There should be four entries. Aftern I enable the logging function, none of the logs have any data in them even after I wait for 45 minutes and use the internet and renew IPs. I am using Firmware Version: 1.0.03. I have the same results for both Chrome and Firefox. I want to be able to set Static IPs but I am hampered by the not having any clients in the DHCP client table.
I have 2 Media Bridges, a Trendnet TEW-640MB and TrendNet TEW-680MB. Both are set as a Static IP on the devices 192.168.1.150 and 192.168.1.151. In the DHCP table for my E4200 I don't see those. I have no problem accessing them typing in those IP addresses but wondering why they don't show up in the table.Actually looking at it more closely, the devices hooked up that are active seem to show up.So I see the following below. And where is list LAN but no name those seem to be devices connected to the media bridges.
I've got threeLinux Boxes (running Centos 6). They were all connected to my cheap WRT54GL-- DHCP worked every time.Absolutely no problems. Both the LInux boxes and the WRT54GL had MTU set to manual, 1492.I replaced the WRTt54GL with the expensive E4200. I set the new router's MTU to manual, 1492. NONE of my Linux boxes ever receive a DHCP address. I look at the logs, and they do DHCPDISCOVER, get DHCPNACK, try several different intervals, and then fail the interface and quit.ALL I did was unhook cables from the WRT54GL and plug into the E4200. Yes, the WRT54GL was powered off. NOTHING was changed in the Linux configs. Yes, DHCP is enabled, address-range assigned, etc. BTW-- one box is dual boot with Win7-- in Win7 (using the same card, obviously), DHCP works just fine. But, Linux doesn't work.
I can give the boxes static IP's, and all is well. Just can't get DHCP to work. I evfen tried putting in DHCP reservations (via MAC assignments) for the E4200-- still doesn't work. The new E4200 is on the 02 firmware (which I believe is cuurent). If I can't iron this simple task out, in a couple of days I'm taking the E4200 back, and getting a refund. I'll stay with my old WRT54GL... it works. Hate to give up on some of the new E4200 features, though.
I've tried to cascade two Linksys routers, but It hasn't worked for me. The first one (which has cable-modem connection) is the brand new E4200, and the second one is the old WRT54GCv3.[code] However, the WRT54GCv3 doesn't get the IP address from the E4200's DHCP. I've also tried to connect them directly (without the PLC), even specifing an static IP on the second router, but I got the same results.I've to state I don't want to change the first router IP/gateway parameters because I have a web and game home server working with an static IP and I don't want to put it offline temporarily because of readjusting network parameters.
My router a E4200. the thing is i want to disable the dhcp services from the router, because there are allready a dhcp server in my network. but if i disable the dhcp will the Guest wifi functions still work?
I am trying to determine the best way to setup my E4200 V2 so that it is “uplinked” correctly to a Comcast Dory Modem/router. Currently we have the E4200 V2 router plugged into the Comcast Dory Modem/Router using a CAT6 cable from one of the Ethernet ports on the Comcast device to the WAN port on the E4200. The E4200 is set to “Automatic Configuration - DHCP.”
We are trying to do two things. First better WIFI in the center of the house and for a TV located next to the Comcast device, and second, have all devices in this house see and access all other devices including the Samsung SmartTV, my son’s two systems upstairs, the 3 systems in the room with the E4200, and the one network printer. In the room with the E4200 we have 3 computers and one network printer. 3 of those 4 devices support WIFI so we don’t have to use all 4 Ethernet ports on the E4200.
I see others talking about running the CAT6 cable to an Ethernet port on the E4200 instead of the WAN port and setting it to “Bridge Mode.” Right now the system appears to be working fine although we are sometimes experiencing brief dropped connections with the devices hardwired into the E4200.
Should I be running the E4200 in “Bridge” mode or “Automatic DHCP” mode and which port on E4200 should the CAT6 from Comcast be plugged into?
I have the e4200 and I am having trouble getting DHCP reservation to work properly with my Windows 7 machines. Perhaps there is a step that I am missing. Basically I go to the DHCP reservation setup page, select my machine and add it to the reservation table. Then I save the changes. As soon as I do this my computer goes offline. If I reboot my machine, it is still offline. I've tried the same procedure to reserve the IP address for my phone and it works fine so I wonder if the problem is with Win7.
I have an E4200 functioning with a new Comcast/XFinity cable modem on the public IP (Internet) port. That modem provides a DHCP address to the router (currently 50.129.x.x./255.255.254.0) The problem is that this new setup is leaking COMCAST DHCP responses through the E4200 to my WiFi clients. Most of the clients (newer iPODs, laptops) are smart enough to behave correctly and use Wifi Protected Setup. This problem means that one older iPOD seems to be receiving the Comcast DHCP (as 192.168.33.0/24 range) instead of E4200 Wifi DHCP range (as 192.168.1.0/24 range). I imagine the most direct solution is to pull the public connection briefly and allow the iPOD to fetch a valid WiFi DHCP from the remaining DHCP server on board the E4200. HOWEVER, I'd like to configure the router to suppress all DHCP packets from the Comcast network - or otherwise make sure the WiFi clients only receive DHCP from the router and not the Comcast modem.
I have a ace board(Acsm) in my switch 6509.I need provide access for clients over https, my scenario looks like this post [URL] .But, i have only one interface, and need to configure nat for inbound clients, to access the server with ip address of the interface vlan of my ace(if i set ace gateway in a rserver, the ssl termination works). The Topology is: Client(https) -> Ace(Https) -> Ace(http) -> rserver (http). Need to configuring this nat? I need that external clients arrive at the server with the ip of the same network as him, he did not right back the packet to the default gateway, but the origin of the same network as him, so that the communication function successfully, end order.
We are having a SRP526W here which replaced a cheap, simple router. Now we would like to set up the VPN-access for outside clients again. So far this was done by forwarding PPTP (TCP 1723 and GRE) to the Windows 2000 Routing and RAS-server inside the network.According to this post the SRP521W, and therefore I suppose as well the SRP526W, are not able to forward GRE: [URL]
Is there a way to provide VPN access for outside clients with this router? Maybe with L2TP (but then we would need to forward ESP) or IPSec (ESP and AH as far as I know)?
If there is no solution we would need to replace this device again with a cheap, simple router which is able to forward GRE - as you can imagine, we would like to save Cisco from this shame.
I have a simple question; Does the E4200 have a print server built into it? I have a usb printer that I want to attach to the router so multiple computers can print to it. The printer does not have ethernet or wireless. I will be upgrading the printer later but would like for it to work with all my computers at the moment.
I've been messing around with this for several weeks to no avail. I've never had a problem establishing a VPN connection within my LAN. I've tried several workarounds, learning things in the processs, but to no avail.I've set up a VPN connection with Windows 7. The RRAS server is at home and I'm attempting to access from school (or the internet anywhere).I have no problem establishing the VPN connection (that I can see). Port 1723 is forwarded for both UDP and TCP to a static LAN address (18.104.22.168) in the E4200. PPTP pass-through is enabled (as well as the other two options).I can't see anything on the server after connecting. I'm using a DDNS. It works just fine INSIDE the LAN; I've even mapped a network drive to "S:". Accessing ANYTHING outside of the LAN over a VPN, however, isn't working. [code]