I have recently started a new job where the IOS on the 1841 routers is version 12.4. These are from 2006 mainly, probably when the routers were bought.should I upgrade to 15.0? Mainly just to plug security holes that cisco have found?
View 8 RepliesI finally can upgrade my 1841 routes from 12.4 to the latest 15.1 IOS. Any info about upgrade path , do I need to modify config file and provide me with upgrade instruction link or something like that ?
View 2 Replies View RelatedUpgrading the memory on an 1841. After inserting a 256MB/PC133/SDRAM/DIMM it would not post during the boot, hangs.If i take out the chip it works fine.The on-board memory is 128, so the 256 is the max it would take to a total of 384. According to the documentation this should work.The memory chip is a Transcend chip, basically Samsung.
View 2 Replies View RelatedWe have 1841 router (Cisco IOS Software, 1841 Software (C1841-ADVSECURITYK9-M), Version 12.4(9)T1, RELEASE SOFTWARE (fc2)), currently the router up and running on "c1841-advsecurityk9-mz.124-9.T1.bin" and when we try to upgrade the IOS with "c1841-advsecurityk9-mz.124-24.T7.bin" its not taking the new IOS. [code]
View 9 Replies View RelatedI have a Cisco 1841 running IOS Image C1841-advsecurityk9-mz.124-3i and the following feature sets: IP, Firewall, VPN, IPS and NAC. I am having an issue viewing the Additional Task tab under the Configure menu in the GUI. Without doing much research i assumed this is an browser issue and new code would fix it. When i look on the download software there are many different codes availible and i am unsure which i need to get to update the software on my IOS.
Here are the ones i am look at and not sure which one to choose from.
15.1.1-XB(ED)
15.0.1-XA2(ED)
I wanted to know how many sodium memory slots the 1841 Routers have so i can upgrade to more then 128mb of DRAMI want ideally 256+on the Cisco website in the diagrams they dont say if it has 1 or 2 slots
View 8 Replies View Relatedwe need to interconnect multiple branch office (CISCO 1841 with VWIC-1MFT-E1 ) via E1 links to the main site (CISCO 3745 with NM-8E1 IMA ). We succeeded to connect them using the same VWIC-1MFT-E1 at both sides (Branch / HQ), but I need to connect up to 10 sites in the future, so we thought that may be we can use ( NM-8E1 IMA) to make it possible and to save some space for any future upgrades. Honestly, we couldn't find any E1 related commands to configur this card (NM-8E1 IMA). Did we choosed the wrong card (NM-8E1 IMA).?
View 5 Replies View RelatedWe currently have a Cisco 1841 router with version 12.4(1c) of IOS using image c1841-ipbase-mz.124-1c.bin. Our goal is to make it so our router can fully support IPv6. The current IOS version cannot. I've seen a site that seems to indicate 12.4T does support with IP Base image but recently had Cisco tell me with the latest IOS release 15.1.4.M4 that I have to use either the "Advanced Enterprise Services" or "Advanced IP Services" image. Did Cisco just remove IPv6 from IPBase in later IOS releases?
Also I've seen conflicting specs on the max amount of Flash and DRAM the router can support. The following link shows that 384MB is the max for DRAM and 128MB max for flash. We're looking to upgrade ours from 128MB and 32MB respectively but as mentioned I've seen it where higher amounts are supported. In fact we bought a backup 1841 to have and it has a 256MB Flash card in it.URL
Last but not least. Where can I find a straightforward documention of this situation where we may have to upgrade our Flash and DRAM and then upgrading the IOS?
I have two Windows 7 computers and neither one will successfully upgrade a 1242 AP to LWAP. However, I go to a coworker's XP machine and run the tool without issues. On Windows 7 I keep receiving the error message of ACL or Firewall is blocking. I have added rules and then even tried disabling the firewalls completely on both computers and still no success.
View 7 Replies View RelatedI am facing a problem to install a ap upgrade lic file on controller 5500. Iam getting the following error:
% Error: License file transfer failed - Error from server: File not found
I have confusion here that when I configure this command from GUI
tftp://172.32.45.22/cmm/standard.lic
What i should use for /cmm/ ????
Let say i have lic. file is on desktop of tftp server computer and I say in this command
tftp://10.12.70.35/??/license file .lic
Is it possible to upgrade the CSACS-1121-UP-K9 to be a non upgrade part? We were going to upgrade from a Windows 4.x to the above Appliance (version 5.x) but there is now a reason to keep the old Windows version running therefore we cannot give the new Appliance the old ACS's licenses?!So we should have (with hindsight) bought a fresh version of the ACS 5.x rather than an upgrade.
View 1 Replies View RelatedI am putting an pre-labbed DMVPN Hub config onto a production 1841. We had to upgrade the IOS to support protection with NAT so the current IOS we're running is c1841-adventerprisek9-mz.124-25g.bin.I can paste the configuration in fine (via the tunnel interfaces) and the router accepts it however the 'show dmvpn', 'debug dmvpn' and other related commands don't work. I have checked the IOS feature navigator and it definitely shows that DMVPN phase 1 and 2 are supported in this image.
View 5 Replies View RelatedI have a 1841 router and I can ping the f/0 port from my pc. However when i try to console to it, it is not showing up anything but a blinking cursor. I tried all different baud rates on my teraterm but still not luck. I picked the baud rate disconnected and reconnected everytime and still nothing. Then I tried to telnet to it using teraterm but it would just open a console window and then close.
View 10 Replies View Relateda have a router CISCO 1841 and I configured a NAT inside from the router to the firewall like this :ip nat inside source static firewall_adresse public_adresse and its work fine and when a added it I do this command "wr" to save the configuration and I restarted the router many times and it still work fine,but in the last five months this NAT does not exsit twice and I must add it a gain.
View 7 Replies View RelatedHow to enable GUI for a Cisco 1841?
View 4 Replies View RelatedWe have an MPLS that connects our main office with our 7 branch offices. We have 3Mb coming into the main office and 1.5 into all of the branch offices. I would like to give rdp traffic the highest priority. We have a Cisco 1841 at all branches and a Cisco 2811 at the main office. Do I have to configure QOS on all routers or just the one at the main location?
View 5 Replies View RelatedI have a cisco 1841 router and want to run BFD i think it needs IOS 12.4T..It has currently 12.4 but no T does the "T" IOS have mroe features?
View 1 Replies View RelatedHow to enable GUI for a Cisco 1841?
View 1 Replies View RelatedWe have a 1841 setup with WAN and LAN subinterfaced(2 WAN connections, 1 internal VLANs) and I am recieving some pretty horrible throughput when traversing the router to the WAN.
I am receiving about 2 MBPS down but around 5 up.Currently there is a ACL on the WAN interface, and as well we are running NAT NVI. It is possible that this might have something to do with it, but I am not sure.
Most of the CPU is going to IP input however I cannot seem to determine the cause. One thing I am thinking is the overload for NVI is using a route-map. Could that cause it to process switch instead of fast/CEF switch?
i have 6 sites using tandberg visioconference system, each site have a cisco router 1841 configured with ipsec vpn, i have a 4 conference a week and my bandwidth is 2 meg, and when people are working we have a lot of problems and cut in our visio conference.
I have a big problem, i want to make a high level QOS priority to my TANDBERG visio conference system between my sites, the issues is that there is an IPSEC VPN in my cisco routers between those sites and as i know if the traffic is crypted we can not separate the packets or give higher priority to packets over anothers.
can i mark traffic in the lan interface and and make a high priority befors the packets go through the ipsec tunnel?
We have cisco 1841 router with two ISP . But we facing the problem whenever our secondary ISP Link goes down the Primary has also went down.We have only one default route for primary Link
View 1 Replies View RelatedOK ran into a little problem with getting this to work. Only group members participate in the encryption process, correct?
I have numerous remotes all coming into one central location. I set up a KS and have currently only 2 of the remote routers set up as GM's, with the intention of the others coming into play as I move forward. Here is basically what I have in my KS and GM's:
KS
crypto isakmp policy 10 encr aes authentication pre-share group 2crypto isakmp key testkey address [code].........
GM's
crypto isakmp policy 10 encr aes authentication pre-share group 2 lifetime [code]....
So I applied the crypto map to the serial interfaces on my routers on either side of the cloud (central-ASR1002 and remote-ISR1841). When I did this, ALL the remotes went down and I'm not sure why. Even the ones that didn't have anything to do with gdoi. Ya, it wasn't good. I thought that only the group members would be affected.
Is it the fact that my acl is encrypting any to any? Surely I don't have to reverse that and have two statements with the same syntax. I'm basically just trying to encrypt all traffic from specific remotes back to the central side. However, I'm trying to do it without taking down the rest of my network .
I'm setting up an 1841 as a basic router for now and I cant get it to work.
[code]....
EEM script. I have tried below script on 1841 with 12.4(24)T5 but not working
snmp-server enable traps ipsla
snmp-server enable traps event-manager
ip sla 10
[Code].....
I want to try ping remote ip every 5 mins , if ping fails wait for 3 mins then trigger reload , and router come up again if ping fails reload again.
Here is the setup :
site 2 site ipsec
pix 515 as the server (static ip)
Cisco 1841 (dhcp client)
ezvpn client works fine for normal users that want to just authenticate with the Cisco vpn client. i have a site 2 site setup from the pix to my house, the connection is "up" on both ends, i see phase2 initiate under the pix logs . try to ping nothing happens, even drop down the byte size and the DF bit (aka ping xxx.xxx.xxx.xxx -l 100 -f ) ping to the next routed interface hop and i get "no translation group found for icmp src outside: xxx.xxx.xxx.xxx <--- my internal network dst inside xxx.xxx.xxx.xxx <---- pix internal network .
Am i missing a NAT rule on the pix or the 1841?
i've been trying to setup an SSL VPN on my 1841 lab router but with no luck. i tried both clientless (anyconnect 2.5) and using a vpn client (anyconnect 3.0).
i'm using a win 7 PC with IP 172.16.1.50 directly connected to 1841 FE0/1 port. tried disabling PC FW, used both IE and FF and delete cookes but to no avail. below are my config and some show and debug output.
SSL_VPN_GW#show webvpn gateway
Gateway Name Admin Operation
------------ ----- ---------
SSL_VPN_GW up up
SSL_VPN_GW#show webvpn context(code)
Here is my current situation, I have 3 Internet connections as below, at the moment they are terminate into the ASA.
ADSL Modem 1 (routed mode) ADSL Modem 2 (routed mode) Mid band Ethernet Tail (10m/10m)
ASA 5510 LAN Switch
I want to change it to the following, in order to use PBR on the router. ADSL Modem 1 (/29 Ip block) ADSL Modem 2 (/29 ip block) Mid band Ethernet Tail (10m/10m) (/28 block)
Router ASA 5510 LAN Switch
I need your opinion on the following points
1. What is the best suited router considering i have 2 adsl connections and i will need 3 WAN + 1 LAN ports in total.
2. Where should I run the NAT ? on ASA or the router. (I do have around 20 L2L IPSEC VPN tunnel on the ASA). In the new setup I would like to use ADSL 1 for the internet browsing and use ADSL 2 and Ethernet Tail for incoming service (+some outgoing to specific destinations or based on specific services)
3. I have an old 1841 with 2 Ethernet ports, am i better off buying 2 x ADSL2+ cards and use them with expansion slots?
4. Both adsl connections are PPPOA based, Can I put both adsl modems into bridge mode and create pppoa connections on 1841? (I will still have to buy a HWIC 2 ports Ethernet card).
5. Should i go for any of the above options or am i better of buying a new router?
I have a cisco 1841 router which isn't able to boot properly from its IOS. it always prompt me on ROMMN.
Here it is:
System Bootstrap, Version 12.4(13r)T8, RELEASE SOFTWARE (fc1)
Technical Support: [URL]
Copyright (c) 2008 by cisco Systems, Inc.
PLD version 0x10
[Code]....
I have a little problem configuring NAT on router 1841, like this is the topology:
WAN (PUBLIC´S ADDRESS) fast0/0 fast0/0/0 PUBLIC´S ADDRESS INSIDE (192.168.1.0/24)
ROUTER ====== X.X.X.X/30============= ROUTER ======== Z.Z.Z.Z/29 ============ SW 3560==============
(ISP) .253 .254 CLIENT . 47 .48
The connection with ISP or Extra net is a metro Ethernet, so the isp gave two ip address to the client: WAN (/30)
LAN (/29) Which be the public addresses to be used by the client if you need to publish any server on the network (like WWW), so they do not have any device that will could do the nat, like an asa or linux server, so the router has to do the Nat, because the SW 3560 does not support this feature.
So... I did the following:
On router 1841:
inter fast 0/0
description WAN
no shut
[ code ]...
I create an interface Blackpool to simulate the LAN connection (192.168.1.0/24)
Inter loopb 0
ip address 192.168.1.254 255.255.255.0
ip nat inside
[ code ] ...
ON SWITCH:
interface vlan 448
description LAN-ME
ip address Z.Z.Z.48 255.255.255.248
no shut
ip route 0.0.0.0 0.0.0.0 Z.Z.Z.47
But if i try to do ping from the ip address 192.168.1.0/24 to any server´s internet the ping fails, but if i do the ping from v LAN 228 the ping is success. I will think that route map could solve the problem.
I have an 1841 running Advanced Security IOS (12.4(25) I think, have to check when I get home) that I'm using to learn about CBAC and IOS' firewall functionality. Its external interface is connected to my Windstream DSL modem in bridge mode, and the router is doing the PPPoE authentication. It's also doing NAT for my internal network, and is acting as a firewall using CBAC inspect statements and ACLs.
Everything is working at at least a baseline level: the DSL authenticates and connects, and machines on the inside can browse the web. The problem is that browsing to some sites is slow or times out. Not all sites, just some. Latency seems to be okay when doing pings. The problem seems to happen with https connections, but again, not all of them. Gmail works fine (I have it set to always use https), while my bank and credit card sites either time out or take minutes to load.
I have an "inspect https" line in my config, and have allowed https through my outbound ACL.
I'm looking for next steps for troubleshooting this. I've check CPU utilization and it's very low; not sure what else it could be. I only have a few inspect statements, for the common stuff: tcp, udp, icmp, pop3, imap, dns, tftp, ftp, and ntp.
I have 2 cisco 1841 routers the one is connected to my local network and the other is the stub router and it only has 2 fastethernet interfaces. fao/1 connected to the local network and fa0/0 connected to the internet and to the other router. How can i configure NAT on the fa0/0 which is sharing the internet and local network
View 1 Replies View RelatedWe have a Cisco 1841 router and checked something an unnusual (never seen before) routing table having L - local routes. if this an IOS bug or same as C - connected local routes.
1841#sh verCisco IOS Software,
1841 Software (C1841-IPBASE-M),
Version 15.0(1)M3, RELEASE SOFTWARE (fc2)Technical Support: [URL] ... Copyright (c) 1986-2010 by Cisco Systems, Inc.Compiled Sun 18-Jul-10 01:16 by prod_rel_team
[Code] .....
I have created the tunnel interface on cisco 1841 router. The tunnel is up but can't ping to it's interface ip, the ping drops.
R1#show ip int brief
Interface IP-Address OK? Method Status Protocol
Tunnel10 10.10.10.1 YES manual up up
[Code]......