Cisco Wireless :: WRVS4400N - Get IPv6 Prefix From WAN Side Of Router?
Oct 9, 2012
Since this router already set up for IPv6 and Dual-Stack traffic, would it be possible to give it the ability to get its IPv6 prefix from the WAN side of the router.
Example:
I have Comcast, and as long as my modem and router support IPv6, with the router also supporting DHCPv6-PD to get the /64 prefix from comcast.
I now have an RV180W so this is not an issue for me, but my father is inheriting the WRVS4400N from me and he is also on Comcast.
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Aug 30, 2012
My ISP (OTEnet, Greece) offers IPv6 connectivity in the form of dual-stack IPv4/IPv6 with the requirement that the router supports DHCPv6 Prefix Delegation for establishing an IPv6 connection.Using other routers (Cisco 887W, DrayTek Vigor2130n), I have established an IPv4/IPv6 connection but I am unable to do so with the EA4500. As a matter of fact, when I have the "IPv6 - Automatic" option enabled the router not only cannot obtain an IPv6 prefix from the ISP but it gets stuck in the connection attempt and never obtains an IPv4 or an IPv6 address. I have to disable the IPv6 option in order to simply establish an IPv4-only connection without problems.So, my questions are:
1. Does the latest (2.1.38.38880) firmware support dual-stack IPv6 and DHCPv6 Prefix Delegation?
2. If the router cannot negotiate an IPv6 connection why is it not establishing an IPv4 connection only but gets stuck in the process?
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May 31, 2011
We have been testing out IPv6 configurations on a 5520 running 8.2(4). We have assigned EUI-64 prefix addresses to sub-interfaces to allow clients to auto-configure there IPv6 IPs and it works correctly. I used ASDM to do the original configuration and noticed that there were two different ways to do it, both of which seem to work. I can add a prefix under the Interface IPv6 Addresses dialog box and check EUI64 or I can add it under the Interface IPv6 Prefixes. But using the two methods yields two different interface configurations:
1.
interface GigabitEthernet0/1.40
vlan 40
nameif test
[Code].....
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Aug 6, 2012
I noticed that the recently released firmware version 1.2.0.9 for the RV110W router mentions in the release notes that DHCPv6 Prefix Delegation is now supported.
Does that mean that this feature will also be implemented in some future firmware release (if we ever see one) for the RV220W router? This is the method used by most if not all ISPs around the world (e.g. Comcast) for IPv6 and the only one RV220W does not currently support. P.S. As of beta version 1.0.4.13 there is no support for IPv6 Prefix Delegation.
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Feb 3, 2011
I am struggling turning on DHCP client prefix delegation on a dial 0 interface on at 1941w.
Everything can be configured apart from prefix delegation features. The following command is just are missing.
int dial 0
ipv6 dhcp client pb
I have configured this on a 877 router with no problems. I have tried 15.0(1)M3 and 15.1(3)T.
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Jan 30, 2013
My E1500 enters a state where the LAN-side (broadcast, etc.) works, but the WAN-side (internet connection) just goes away. If I go unplug and replug the E1500 the internet connectivity comes back.When this happens, the wireless indicator on my desktop (Dell with Intel wifi) says I have an internet connection, but I clearly don't.
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Dec 7, 2011
I buy a WRVS4400N router on amazon.fr because on cisco.com, the Product Specifications say "Dual-stack IPv4 and IPv6" [URL]
The ipv6 work for the local network. But the router does'nt fetch my IPv6 take by my ISP (by PPPoE) How do I get IPv6?
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Oct 11, 2011
I just spent a number of hours getting a site-to-site VPN tunnel and Cisco Quick Connect client running on my WRVS4400N and RVS400. Turns out the problem was the routers don't route IPv6 properly and it takes precedence over IPv4
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Jun 9, 2011
I have on my ethernet linux box, that is responsible for IPv6. This box is configured as IPv6 gateway from my network and it also sends RA to the network. All devices on ethernet network can work on IPv6 without problem. Clients, that are connected to WiFi, they just receive the RA from this box -> this packet is sended over WRVS4400N to the wifi network. But all other traffic do not pass the WRVS4400N, so the wifi client is not able to ping the IPv6 gateway. There is no problem on IPv4, there the wifi client is able to communicate with any ethernet device.I have tested WRVS4400N setting "ipv4 only". If I switch on "ipv4 and ipv6", than all devices will get some additional IPv6 adresses and the communication from WiFi client to IPv6 router is not working again. How to configure the WRVS4400N to bridge all IPv6 traffic between WiFi and ethernet?
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Mar 13, 2013
i configured cisco asa 5520 as cisco ezvpn server and cisco 891 as ezvpn client .the configurtion is working fine.i am using client mode on the ezvpn client side.but my quesion is , is it possible to communicate to ezvpn client side internal ip from the ezvpn server side?and one more thing what is the benefit of network extension mode on the client side and how it will work what are possible changes need to do in the server and the client side.
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Mar 17, 2013
I'm trying to setup an ASA and a UC540 side by side, to utilize the ASA for data networking and the UC540 for voice. This 'should' work fine, I just seem to be having an issue where the ASA seems to be blocking traffic from the voice network as it passes through.So here is the LAN setup:ASA: 1.1.1.1UC540: 1.1.1.2The UC has a voice vlan 10.1.1.1/24 and a service module at 10.1.10.1/30My PC uses the ASA as its default gateway, 1.1.1.1The ASA then has static routes to the UC networksRoute 10.1.1.1/24 1.1.1.2Route 10.1.10.1/30 1.1.1.2Ping from PC to the UC networks works fine. However, ping from the UC networks to PC fails. ASA logs show traffic being denied due to not having an established connection or something.My guess is that the traffic is being blocked because the egress and ingress paths are different? Traffic from the PC goes to the ASA, then gets routed to the UC and it works. However in the other direction, traffic from the UC is going directly to the PC and bypassing the ASA, because its a directly connected network and doesn't have to route through the ASA to get to the PC. The reply traffic from the PC DOES go through the ASA following its route table, thus the issue of the ASA not seeing the established connection?Same-security inter and intra interface is enabled.So I think I see the issue, I just don't know how to fix it. Is there something I can configure on the ASA to allow for this? My only other option would be to configure a /30 on a new vlan to handle the routing between the UC and ASA or something, but that seems like its going to make this simple setup way too complicated with extra networks, vlans, trunks, etc.I am running ASA version 8.4.5?
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Dec 28, 2012
She has comcast xfinity with a the SMCD3GNV router which if you ever look it up has the worst wireless signal imaginable and I can second that. I was hoping to not have to touch the SMCD3GNV router and just add on to it by attaching a secondary router as a wap.What I plan to do (which I am sure has been exasterbated in forums but just want clarity) was to disable DHCP on the new n router ( cheaper than official wap) and set ip out of SMCD3GNV router DHCP ip range but in same subnet mask so probably 192.168.1.2. Then connect the SMCD3GNV router to the new router via ethernet and dont use wan port. Is this basically all I have to do? Do I need to change the channels on either devices since their next to eachother? or will them being next to eachother and same channel cause interference? I have read I can call comcast and turn the smcd3gnv into a bridge ( plain modem) but I would rather avoid calling them and see if 2 wireless access points next to eachother is okay.Also, I plan on doing this by going to microcenter.com and getting a router for 24.99 or less with a coupon I have. Is there any on their website that you would recommend for this setup? Also if you could check the wap on their website and see if you think its worth it to get one of those instead if under that price as well. I want to utilize wireless n signal . Also, the xfinity service she has is rated for 50mbps download and cannot remember the upload , I have tested this wired and it does actually achieve this or greater.
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Jan 27, 2012
I would like to set the router's dns entries but I don't see how to do that. Basic setup page has DNS setep for the DHCP scope but I don't want to push dns to my pc's. What I am looking to do is to use an alternate dns to what my service provder pushes and still have the abliity to route on my internal network.
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Oct 5, 2012
Device: Linksys E1500 - firmware: 1.0.01? I've got a static IP setup for a small remote office and want to keep tabs on their internet connection by pinging it via a monitoring program we use. However, the router seems to not responding to ICMP.
- Filter Anonymous Internet Requests is unchecked.- I've verified that the Static IP is correct.
- I've tried pinging from several remote locations on different connections, with no avail.
I can't seem to figure out why i can't ping this device. I just want to make sure there isn't a setting in the wireless router that is preventing echo replies.The only other thing i can assume is that Comcast is filtering ICMP on their side of the WAN connection.EDIT: Here's a traceroute from my PC to the WAN side of the Linksys....
Tracing route to 50-194-XXX-XXX-static.hfc.comcastbusiness.net [50.194.XXX.XXX]over a maximum of 30 hops: 1 <1 ms <1 ms <1 ms 172.25.2.1 2 6 ms 16 ms 6 ms 10.0.0.5 3 9 ms 8 ms 8 ms 10.0.0.1 4 7 ms 7 ms 7 ms 10.0.0.2 5 8 ms 7 ms 7 ms ont-static-208.57.XXX.XXX.mpowercom.net [208.57.XXX.XXX] 6 7
[code].....
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Jan 27, 2012
I have configure pppoe on my WRT120N it say it's connected but cannot access wan side of the router.
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Jul 27, 2011
It's been a pretty darn good router for about 8 months now, then today one of the wireless connected PC's started to go intermittent internet, and then dropped the connection.
At first I thought it was the PC, but after checking other connected items (wii, PS3, another pc, 2 ipods, and 2 printers) I discovered all the wireless connections were dropped, and no one could see the SSID. An hour unplugged fixes nothing. 2 wired ports are working fine though.
When it's uplugged and then plugged in, all the little lights come on, then go out, and then, only the 2 wired port lights come on, nothing else.
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May 7, 2012
I am using Linksys E4200 wireless router. I connected two machines, this way.
|LAP1|--------(LAN ethernet connection)----------|LinksysE4200|-------(Internet wired connection)--------|LAP2|
On the Linksys E4200, the Internet wired connection side, I gave static IP address which is in the same network range as that of LAP2.When tried to ping from LAP1 to LAP2, ping doesnot happen. Any settings by which I can ping from LAP1 to LAP2.
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Dec 18, 2011
My Linksys WRT110 doesn't seem to have the range to make it to the other side of the house. What range expander is compatible?
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Dec 10, 2011
E3200 works great until I enable QoS. The device uses QoS and works find until reboot. If QoS is enabled and the device is rebooted, its stops routing from LAN side to Internet side. Administration-->Diagnostics allow me to ping/trace route to Internet sites and local LAN clients but cannot reach Internet from local LAN.
Windows networking icon indicates "No Internet access". I can ping other devices on local LAN.
Disabling QoS restores routing and you can re-enable QoS after that and all is well. Unfortunately, if there is a power failure when I', not there to disable/re-enable QoS afterward, other household members can't use the Internet till I get home.
Wondering if any other QoS users have observed the same problem.
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Sep 11, 2012
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.
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Sep 25, 2012
Difference between ACL , Distribution list and route map?
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Dec 13, 2011
what is a routing prefix? Does it only get used in one of the layers of OSI?
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Apr 7, 2013
A client of ours has an 881-K9 router that they have configured a VPN on, this was setup and configured prior to my joining the company. This client now needs to add more usernames to the VPN on the router side, and I've both searched here, and googled for how to add users to the VPN on the router, the only thing that comes up is adding clients (from the client end PC), and nothing to show how to create the users on the CLI from ssh on the router itself.
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Jan 30, 2013
Is there an easier way to locate what an ACL, prefix-list, etc is applied to?ometimes its a bit tedious especially on some devices with a lot of config. I would like to see what route-maps a prefix-list is applied to[CODE]
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Mar 1, 2013
How can I get IPV6 connectivity using rr. Does it has to be automatic or manual, Is there anyone with RR getting IPV6?
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Oct 23, 2011
Difference between prefix-list and distribute list?
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Jul 12, 2012
I have an e4200 V1 with firmeare V 1.0.04 For my IPv4 configuration I use opendns.com for my DNS provider.When I enable IPv6, I get my ISPs DNS server rather than the one I have configured on the IPv4 page. It works, but it eliminates all filtering and statistics that I am able to do with opendns.com.Open DNS does provide two IPv6 DNS servers, but I don't seem to be able to find where to set them in my e4200. I want it set network wide.Can I set my IPv6 DNS provider anywhere in the e4200v1 with V 1.0.04?
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Feb 23, 2011
I know that the E3000 does not have IPv6 support. I wanted to know if it will get a firmware update to support it?
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Jun 11, 2012
Our internet provider has no intention of providing a IPv6 DNS so I have a crippled at best service. We live in an area where our only option is through satellite service, so changing providers in not in the cards, yet.
If I "Disable" the DHCP Sever, the setup menu provides a method for me to force feed up to three Static DNS addresses, all with IPv4 addresses.
There are several locations that provide "free" DNS service, but how does one verify the security of such sites? Does Cisco keep track of the status of this kind of service or am I on my own? Cisco seems to endorse two DDNS services, but for home use, the extra charges seem otherwise unnecessary, and do not yet address the IPv6 question.
The first few that I have investigated that do provide IPv6 service also provide their addresses in IPv6 format. The E4200 menu does not seem to allow me to do that.
Am I going to be forced to live with crippled IPv6? I have already discovered a software product that has failed since changing routers, but works if I take my laptop to a particular WiFi location.
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Jul 11, 2011
Is it possible to configure Easy VPN on brach side which has 877 series router and ADSL connection for internet such a way that for internet traffic it will use the local ADSL line and for the server in HQ it uses the tunnel.or for internet also it will go thrugth tunnel and uses internet link at the HQ?
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May 23, 2011
We have an ACS 5.2 server connected to an AD domain controller which has several trusted domains. (domain1, domain2, domain3) We currently have to specify which domain each user belongs to (ie, domain1user) in order to connect. We would like to only have to enter the user name without the prefix, (ie, user1) and have ACS automatically check each domain for a match. Is this possible with ACS 5.2? I seem to remember this was possible with ACS 4.2.
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Jan 7, 2013
Imagine AS65200 anouncing block 10.10.0.0/22 to the internet.Now for some reason we need to announce block 10.10.2.0/24 from AS65333.How should routes from AS65200 be announced now?
Can I maintain the whole /22 block since 10.10.2.0/24 from AS65333 is more specific? Or should I now break AS65200 announcement into smaller prefixes completelly excluding .2.0/24 ?( .0.0/23 and .3.0/24)
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Mar 7, 2012
I have configure my ACS 5.3 to strip the prefix of the radius username (Domain week wang) it received and I also configured my ACS as the External Radius Server. However, this does not seem to work. The authentication protocol that I am using is PEAP Mschap v2.
I have read inside this forum that due to the fact that the radius username and password is transited inside the TLS tunnel of the PEAP MsChap v2 thus ACS is not able to do the stripping as it is not allow to touch anything inside the TLS tunnel.
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