Cisco Infrastructure :: 2851 - IPv6 Support In IOS
May 10, 2011
we have a Cisco 2851 router and bought the following IOS::
System image file is "flash:c2800nm-spservicesk9-mz.124-25d.bin"
Cisco IOS Software, 2800 Software (C2800NM-SPSERVICESK9-M), Version 12.4(25d), RELEASE SOFTWARE (fc1)
I thought this version was supposed to have IPv6 support?
TEST(config)#ipv6 unicast-routing ^% Invalid input detected at '^' marker.
TEST(config)#
which IOS should we buy?
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Dec 20, 2011
We want to get MIB files for snmp v2 from Cisco 2851 Router running with IOS below,
c2800nm-advsecurityk9-mz.124-15.T7.bin
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Nov 12, 2012
I recently obtained a 2851 and have been battling this issue for a week now. An odd set of circumstances happen with the bootstrap startup process. If the router has loss of power or when reloaded; it fails to read the CF card and boots to rommon. I can tftp an image to it (tftpdnld -r) and IOS CAN read the flash card along with any saved configuration.In fact once in IOS, I can wr mem and print the hardware details of the CF card. Once I reload the router it goes to rommon, fails to open the flash, then sits until i tftp the image back. When the router load IOS, it also loads the startup config.I don't think it's a problem with the CF card as IOS can read it. I've tried formatting the card from IOS and from my pc as FAT, FAT16, FAT32, and NTFS - it didn't make a different. I updated the ROMMON to allow for USB booting but haven't purchased a USB Drive yet for testing. The upgrade didn't resolve this issue either. It almost seems like a firmware problem with the EPROM.
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Mar 27, 2012
We have a new 50/10MB Comcast Deluxe connection we are trying to set up in our environment. We have a single static IP and the Comcast provided SMC-3DG router/modem has been set to "bridge mode" by Comcast. This is then plugged into one of the interfaces and that interface has the static IP defined on it with a default route to the Comcast provided gateway IP. I wired the 2851 into our layer 3 switch, set up some static routes on the 2851 back to our existing subnets and everything traffic-wise is flowing between our existing subnets and this new router.
Since the default route on our layer 3 switch is defaulted to our older 2811 router (that I'm intending on replacing with this 2851), I set up a static route on our layer 3 switch to guide all traffic for speedtest.net and comcast.speedtest.net out to the 2851 router. Doing speed tests show 12 MB down, .5 MB up. Connecting a laptop directly to the Comcast SMC modem and setting it's IP to the static IP shows full speeds again, so the issue has to be with our configuration/equipment.
Can a Cisco 2851 support this 50mb Comcast connection and do I just have it configured wrong? Or do I need a different router altogether? At first I tried the 2811 but that had slow speeds, so I figured the 2851 with twice the throughput would do a better job but for some reason it is not currently. I have played with duplex settings (100, full, half, auto) and nothing changed. I updated the 2851 to the latest 12.4 firmware and also no change.
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Jan 9, 2013
i just came to know Assurance feature license doesn't come for free when upgrading from LMS4.2 or NCS1.1. It has to be purchased. Before buying this license, i would like to know if IPv6 netflow is supported.
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May 7, 2011
I need to implement IPv6 for ASA VPN. According to the ASA_8.4_cli_cfg.pdf , IPv6 is not supported on ASA IPSEC vpn and remote client vpn. I do not have a ASA 8.4, any way to verify on ASA8.4 whether the crypto command support ipv6 address ? If the crypto command do support ipv6 address then probably there is chance it will work.what i mean is eg. crypto map xxx set peer <ipv6 address| ipv4 addres> able to set ipv6 address.
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May 1, 2013
Does cisco LMS v3.2 Support IPV6 in all modules ? We will be migrating from V4 to V6 in some time from now
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Jun 10, 2013
According to the url below, i could find that there is a separate module required for asr 9k, is it so; doesnt it sufficient to have the 4.3.0 Ios-xr version for the cgnat supoort features of nat 44, nat64, ds-lite.. like things?URL
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Aug 28, 2012
I would like to get it clarified, that Cisco WLC 2504 running the code ( 7.2.110.0 ) does support IPv6 or not ?
From Cisco Documents they are asking to enable IPv6 support under WLAN > Edit Page, and Enabling mulicast on Ethernet Multicast Mode under Controller > General.
But from the GUI am not able to find the above two field, Even in Interface i created under Controller > interface is not accepting IPv6 address. I am able to configure IPv6 ACL .
Is any deployment document is available to show different scenarios with configuration.
Note - Am using Access point AIR-LAP1262N-N-k9
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Jan 27, 2010
Is there any IPv6 support planned or in the works for RV082?
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Mar 29, 2011
I want to ask that does ASA 5580 support the nat-pt for IPv6?
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Jun 21, 2012
how to add IPv6 support via HE's TunnelBroker to an RV016.
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Dec 7, 2010
I've got older SOHO97 which I want to use as a backup for Cisco 800 but I can not find any information if it actually supports IPv6. Neither the data sheet [URL] nor the Cisco Feature Navigator [URL] suggest it has any IPv6 support at all.
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May 24, 2011
I was slightly dissapointed with the performance of the "pre-sales" phone number of Cisco in the Netherlands so I am asking it here instead.We decided on using 2 Cisco 2921 routers with 2.5GB ram to use for a MultiHomed connection using BGP. We already have our v4 and v6 space assigned as well as our AS number. The connections should turn up soon.What I could not find out with proper certainty on the Cisco Feature Navigator is if the IP BASE on the Cisco 2921 supports both IPv4 and IPv6 routing combined with BGP. This model uses the Universal IOS licensing which I found slightly confusing. I could not find a simple matrix with the supported commands either.
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Apr 3, 2013
Below is my Topo
DUT------router(7600)------Sami module (slot 9)
I have both ipv4 and Ipv6 config on all the three hops. Between Cisco and Sami module, I have the Ip config on vlan interface 1400(say). Its not on a physical interface obviously, I can ping ipv5 from DUT to Sami IPv4 address. But Ipv6 doesnt work. If I add a sttic route to DUT network on SAMI, show ipv6 route does not show it.
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Feb 6, 2013
i want ti migrade lan from ipv4 to ipv6.. how can i check my switch support ipv6?
i am having cisco 3500 and d-link managed and unmanaged switchs.
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Dec 16, 2011
Does WAG120N Support IPv6 ?
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Jul 7, 2011
Would like to see IPv6 support on the WAG320N. Some ISPs now support this protocol....should eventually become a standard feature.
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Sep 1, 2011
I purchased a Latitude E6220 with a 4G WWAN modem (the DW5800). My intention was to support DirectAccess, i.e. Microsoft's clientless VPN, but unfortunately I have not found any way to get the IPv6 protocol installed on the device.
I've searched Verizon Wireless, Dell and Novatel Wireless forums without any success.
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Feb 3, 2013
was told to allow Ipv6. Does my modem support this?
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Nov 23, 2011
Does Nexus 7000 support ipv6 6to4 tunnel?
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Mar 2, 2013
I have cisco 2960 and Catlyst 4510 switches now we are planning to implement IPV6.
i have the fallowing IOS on my switches.
C2960-lanbasek9-mz.122-50.se5
Cat4500e-entservicesk9-mz.122-54.sg1.bin
The above ios will support for IPV6 or I have to purchase new IOS, which version will support.
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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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May 27, 2012
I find much document, but not found information about whether those support for IPv6 e.g. dual-stack like newer series.
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Aug 3, 2011
I Have a requirement to migrate from ipv4 to ipv6, I have checked the scalability of all the devices for this migration except ACS 1113 Solution Engine, Version 4.2. I couldnt reach the proper documentation to check its support for ipv6.
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Feb 18, 2013
I am having WS-C3560G-48TS switch with ios(c3560-ipbasek9-mz.122-58.E2.bin) and I am trying to use IPv6 feature in this switch model. More over I've upgraded this switch with many ios but none of them not supporting IPv6 feature. ios which supports IPv6 feature?
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Jun 25, 2012
I have the cisco 3640 with IOS Version 12.2(46) , and it with DRAM:32M , Flash:8M.What IOS version can support IPv6 RIP in the hardware limit?
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Jul 22, 2010
IPV4 IP addresses will be running out in less than a year and I wanted to know, will there be a firmware update for WRT120N to support IPV6?
Also, if I have to buy another router to support IPV6, I'm going to buy a D-Link. It's nothing personal, I just find it absolutely idiotic that a router that supports wireless-N doesn't support IPV6. You have to ask your self, how does the standard IPV6 spec thats a few years old not make it to the final product of a router, but a non-standard wireless-N spec implementation somehow got the O.K....?
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May 29, 2012
Region : Ireland
Model : TL-MR3420
Hardware Version : V2
Firmware Version :
ISP :
I have my router updated with the latest firmware and I'm pretty sure all the settings are correct but I'm only getting a max transfer rate of 144Mbps. I know this because I use InSSIDer 3 to analyse my wifi network etc. I stream movies over my network and while DVD quality movies play fine, HD movies tend to freeze and buffer a lot. I have the router's channel width set to 40Mhz, so I know that's not the problem. Strangely, I also use a Netgear wifi extender with the MR3420 and it's max rate is 300Mbps.
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Feb 3, 2011
Does WAG160Nv2 support IPv6 addresses primarily for the Gateway's IP and thereafter about all IPs that need to be entered via the web interface?
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May 9, 2013
We have ACS 5.3 with built in ACS View, does PI 1.3 support it? We have set up in PI 1.3 but unable to see the authentication records for clients, I wonder if they are compatible.
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Apr 23, 2012
I am thinking about running some third-party unified communications apps under VMWare ESXi5 on a Cisco SRE 900 module. According to the Cisco docs, third-party apps are supported on these modules (see table below) but the app in question is NOT on Cisco's list below.
[URL]
Some questions:
1. As long as the third-party app is capable of running under VMWare/VSphere ESXi5, is there anything on the SRE that would prevent you from running this third-party app even though it's not on Cisco's list?
2. What is Cisco's policy on the use of third-party apps that are not on their list? For example, will they take a support call on the SRE running a non-listed app. (I don't want to void any sort of support contract through the use of a third-party app not on their list).
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May 6, 2012
I am working on my CCENT after getting my A+. I have an old 3600 router and I am following CBT Nuggets to configure it. CBT Nuggets seems to have an IOS that supports VLAN and IP Addresses and it looks like mine only goes up to Token Ring so it doesn't mirror the instruction. I know it's an old router but is there a software release (like the 12.4 maybe?) that would allow me to follow the CBT Nuggets more accurately so that I can set the switch up for IP Addresses and VLAN instead of limiting me to token ring?
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