We 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 RepliesI 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 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 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 Replies View RelatedI 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 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)
we 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 RelatedI 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 Related1841 & 3845 router. We send 30 GB data on 100 Mbps link. First time we use 3845 router for sending the data and 47 Min are required to complete the data, during this link utilization was 100%. After that we send same data through 1841 router & 46 Min are required for the same. Only difference in data transfer is CPU Utilization of 1841 router goes 30% & 5 % of 3845 router Can we use 1841 router instead of 3845 router ? .
View 2 Replies View RelatedI have got a cisco 1841 router. I need to do many nat. I have got a lots of virtual interface on this router. How many nat inside and outside does it supports ? Can I do more than one nat insdie and outside in different virual interfaces on the same single router.
View 2 Replies View RelatedA client was having some email issue and was requested to change the 1841's LAN and WAN interface MTU to 1400 bytes. i've used 'mtu' command but was rejected and got an error like to one attached. so i used 'ip mtu' instead to make the change.
What's the difference between the 2 commands and if this would achieve the said change. I've checked using the show interface it's still showing MTU of 1500 bytes.
I m trying to make the vpn session using m GRE tunnel between cisco 891/k9 and 1841 router.. there is the fixed ip add with the 1841 router, and another one doesnt have the static ip from the ISP, In this case, im going to use DMVPN, The problem is , after completing the configuration, the tunnel inteface of the 1841 router will be seen like this.
-status: reset
-protocol: down
I want to connect my office network through anyconnect software and want to have the access of the whole network at my office, so that I can feel that I am at office. I have got 1841 router at my office. Is it possible to do VPN with anyconnect on 1841 router. Which IOS is required for SSL vpn ?
View 1 Replies View Relatedwhen I start the router , I can't enter the IOS , and it enther the ROMMON mode , the error display probably is : the flash is invalid.I want to import an new IOS into the flash, but it says the space is not enough.how I confirm the flash is broken?It's any other ways to solve this problem except to change the flash?
View 2 Replies View Relatedsetup a vpn server cisco.
device cisco router 1841 [URL]
In my company, we have two Internet connections, one for VPN and the other for emails and browsing. I have Cisco 1841 router with dual ADSL links, and also it's conntected to ASA and the other PIX. through one physical interface (vlan 1and vlan 2). The PIX firewall is connected to users, and the ASA is for VPN only.How can I seperate the traffic is going for emails and browsing and the vpn traffic. I have got to the point, that the router is configured for both ADSL connections, and I also configured the access-list and route-map in the router, the thing is when both ADSL configured together none of them works.
View 1 Replies View Relatedi am very new for WAN failover configuration so how to configure cisco router 1841 with two WAN link.
View 2 Replies View RelatedI have a 1841 Router running C1841-ADVIPSERVICESK9-M ver 12.4(12), is this IOS VPN capable, if not what IOS would I need to run a VPN?
View 2 Replies View RelatedI have a problem with 1841 router - It wont't boot up and there is a message
Correcting primary nv_flash
I have a Cisco 1841 router equipped with a serial interface and an ISDN BRI interface installed.The router has stopped suddenly responding and no display is beig obtained when trying to access the router through the console port.I have check the router LEDs and they display the following:
SYS PWR - It is showing solid green which means the router is receiving power, and the internal power supply is functional. It is not blinking green as is normally the case when the router is rebooted.
SYS ACT - It is showing solid green. It should normally be blinking green showing that the system is actively transferring packets and monitoring internal activity. CF - It is showing solid green. It should normally be off indicating that the CompactFlash memory card is not being accessed or be blinking green showing that the CompactFlash memory card is being accessed.
I have even replaced the CompactFlash memory with another one and removed the two WICs installed but the router still fails to initialise properly and respond through the console terminal program. how the router can be further troubleshooted or if it can be repaired?
Can I configure a cisco router 1841 to block specific sites?
View 4 Replies View RelatedConfiguring Cisco 1841 router and firewall.My provider has put their equipment and given me 2 subnets with public ip address. I am used to getting just one Subnet and connecting my firewall straight to the hand off. But in this case I am a bit confused. I assume I will need to put a router and configure it with before I connect my firewall. [code] I also have a firewall that I would like to be on the subnet 2 at 200.xxx.97.130 and have my private network 192.168.xxx.xxx behind it.
View 2 Replies View RelatedI have an issue with NAT on a Cisco 1841. See following configuration,
interface FastEthernet0/0 description Connection to LAN bandwidth 100000 ip address 10.90.0.100 255.255.0.0 ip helper-address 10.100.2.2 ip helper-address 10.100.2.3 ip load-sharing per-packet ip nbar protocol-discovery ip nat inside ip virtual-reassembly duplex auto speed auto
interface Dialer1 description ADSL connection bandwidth 448 ip address X.X.X.X 255.255.255.248 ip access-group 150 in ip nat outside ip inspect firewall out ip virtual-reassembly encapsulation ppp dialer pool 1 dialer-group 1 no cdp enable ppp authentication chap pap callin ppp chap hostname hostname ppp chap password password ppp pap sent-username hostname password password crypto map vpn
ip nat inside source list 102 interface Dialer1 overload(code )
I've tried this with both a source list NAT statement, and a route-map. The router can contact hosts on the Internet:
Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 128.31.0.51, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 144/147/148 ms
how to configure log in Cisco 1841 router, terminal log
View 1 Replies View RelatedI am facing problem when trying to establish VPN connection between ASA and 1841 router. Peer comes up but traffic is encrypt and decrypt. when assign route (ip route 192.168.x.0 255.255.255.0 fa0/0) to remote local subnet there is a traffic but one reply and one drop
ping from
192.168.y.62
-------------------------------------------------
Reply from 192.168.x.55: bytes=32 time=493ms TTL=127Request timed out.Reply from 192.168.x.55: bytes=32 time=633ms TTL=127Request timed out.Reply from 192.168.x.55: bytes=32 time=375ms TTL=127Request timed out.Reply from 192.168.x.55: bytes=32 time=528ms TTL=127Request timed out.
[code].....
We are using Cisco 1841 routers in our organisation. Presently we use first ethernet ports to transfer data from WAN to LAN side. Now we want to add another port so that we can take two input from WAN side and one at LAN side. Can we do it by using existing auxillary port or we need to purchase additional HWIC module?
View 8 Replies View Relatedjust configured a 1841 router and im trying to figure out why some websites work and others dont - when i put in a small TP-LINK everything works fine so its not my ISP
my config:
Building configuration...
Current configuration : 3057 bytes!version 12.4service timestamps debug datetime msecservice timestamps log datetime msecno service password-encryption!hostname RT1841!boot-start-markerboot-end-marker!logging message-
[Code]....
As a Cisco newbie I am thinking about building a linux router (for a study project) to connect to a Cisco network (2 x 1841 routers). what kind (standard) of serial interface card will I need to install on the Linux PC router to enable serial communications with the other two 1841s.
View 2 Replies View RelatedI need support regarding IPSEC - VPN in 1841 Router? I had purchsed 1841 Router and i dont know how to check, whether supported for VPN or not?
View 4 Replies View RelatedI need some clarification if it is possible to do an IPL connection between Cisco 2801 (T1) to Cisco 1841 (E1) via Ethernet (2801) to Serial (1841).
I am unable to find any documentation about this and I need to connect our network to an offshore network.
I've to realize a VPN (ipsec) between 2 side that use a Router Cisco 1841, each one with its own public IP.The 2 side can ping each one with Public IP but the VPN are in DOWN's state.The schema is the following:
192.168.1.0/24 (LAN1) <-> Ro1 (X.X.X.X) <- VPN -> (Y.Y.Y.Y) Ro2 <-> 192.168.2.0/24 (LAN2)
the configuration of Ro1 is showed of following, the same configuration is present also in Ro2 but with different IP address
sh runBuilding configuration...Current configuration : 9808 bytes!version 12.4service timestamps debug datetime msecservice timestamps log datetime msecservice password-encryption!hostname TEST!boot-start-markerboot system flash c1841-adventerprisek9-mz.124-24.T.binboot-end-marker!logging message-counter sysloglogging buffered 51200 warnings!no aaa new-modeldot11 syslogno ip source-route!!! !ip cefno ip bootp serverip domain name test.itip name-server x.x.x.xip name-server x.x.x.xip inspect log drop-pktip inspect max-incomplete low 300ip inspect max-incomplete high 400ip inspect one-minute low 300ip inspect hashtable-size 2048ip inspect tcp synwait-time 20ip inspect tcp max-incomplete host 300 block-time 60ip inspect name IDS tcpip inspect name IDS udpip inspect name IDS ftpno ipv6 cef!multilink bundle-name
[code]....
so, of following the screen of the answer of these commands.
Ro1(config)# sh crypto session Crypto session current statusInterface: Serial0/0/0.1Session status: DOWNPeer: 81.21.17.146 port 500 IPSEC FLOW: permit ip 192.168.1.0/255.255.255.0 192.168.2.0/255.255.255.0 Active SAs: 0, origin: crypto mapRo1(config)# sh crypto map interface serial 0/0/0.1Crypto Map "VPN" 1 ipsec-isakmp Peer = Y.Y.Y.Y Extended IP access list 150 access-list 150 permit ip 192.168.1.0 0.0.0.255 192.168.2.0 0.0.0.255 Current peer: Y.Y.Y.Y Security association lifetime: 4608000 kilobytes/86400 seconds Responder-Only (Y/N): N PFS (Y/N): N Transform sets={ VPN-SET: { esp-3des esp-sha-hmac } , } Interfaces using crypto map VPN: Serial0/0/0.1
how to configure VPN connection with failover on cisco Router 1841?
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