I have a cisco 1841 running on a 10Mbps Metro-E connection. I recently signed an agreement for a 100Mbps Metro-E. I am wondering if I will need to purchase a new router to support this new connection or will my 1841 be able to handle the traffic.
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my company will change WAN connection from HDSL (2Mb/2Mb) to Metro Ethernet (10Mb/10Mb). Now, I have CISCO 1841 (12.4(15)T12 ) with 2 FE and HWIC-1T. Can i configure my Metro Ethernet (WAN Connection) on one FE or i need of "external wic" such as hwic-1FE ?
View 1 Replies View RelatedI have the possibility of upgrading a DS3 to Metro Ethernet, Gigabit connection. My dilemma is I have two VTP domains in my network. How can I get two VTP domains over one trunk to a remote site ?
View 0 Replies View Relatedwe are setting up our first ATT metro ethernet connection. I have a Cisco 2960S at the remote site and I placed a Cisco 2960 on the Host site to test and had no issues. When I moved the Host site to our Nexus 7000, I can not get a link.. both sides are set as trunks,
View 6 Replies View RelatedI think choose this SWITCH 4506-E and I need running only features L2 Metro, but Idont known what IOS for this!
View 1 Replies View RelatedI have been reading for awhile now on all the Cisco forums on the 3560 and shaping egress traffic but I wanted to verify my thoughts on this. I have 3560 that connects to the ISP that is policing at 10Megs, I want to shape my egress traffic going to the ISP, I do not want to provided QOS to any specific traffic type but only shape all traffic outbound. Will my config below shape "all" egress traffic going to the ISP on the 3560, on a port that is physically connect at 100Meg Full duplex?
int gi0/1
srr-queue bandwidth shape 40 40 40 40
I gathered these numbers using the formula of 100* 1/weight, which would equal 2.5 and if each queue has 2.5 meg that would = 10Meg. However another concern is that I don't think I have the full 100Meg on the interface to use (correct?)
The data sheet for the 2232PP says you can use a SFP-GE-T, but there is no mention of 100Mbps. I want to recommend to a customer that they use 2232PP for an upcoming core upgrade, but it may need to support some existing 100Mbps devices which are currently connected to 3750s.
View 1 Replies View RelatedI curently have 2 Data centers connected with a Metro Ethernet Connection. Each Data Center has 6500 with Sup720s. The Metro Ethernet connection is currently conected by a L3 routed interface. I now need to enable VRFs between the locations and want to determine the best way to adjust the Mero. I was considering adjusting the routed interface to use Ethernet sub-interfaces. Each VRF would be given a different subinterface over the Metro Ethernet connection. I have done this on internal LAN connections but am concerned about exteding across data centers over Metro E.
View 1 Replies View RelatedIt seems that Cisco mentioned, in their data sheet of 2921 ISR, that it can support up to 50Mbps. However, from Google search, it says 2921 can handle 100Mbps with no problem.I am planning on getting 2921 ISR in small office where only ~10 people are connected to it. And we do have two different line of 100Mbps ISP internet line and wish to share them in the office.I am confused why ~$2k router can not support 100Mbps where ~$100 consumer routhers like Linksys has no problem with handling that speed. The reason why I am planning on 2921 is the rich feature like Voip solution (CME) it offeres. I have several remote offices that needs to be connected with Voip phones. and I could go with UC500 series but it seems to me UC500 does not support IP Phone 9900 series.
View 5 Replies View RelatedI'm just getting started with cisco kit so you will have to bare with me.I have a cisco 1841.i have a very wierd issue of routing...i cannot ping and browse through this.
View 3 Replies View RelatedI have a problem accessing my wireless router through VLAN sub-interface on my Cisco 1841 router. My hardware:
Cisco Catalyst 2960 switch (192.168.100.4 /24)
Cisco Catalyst 3550 switch (192.168.100.6 /24)
Cisco 1841 router (192.168.100.7 /24)
Asus RT N66U wireless router (192.168.100.2 /24)
Here's my network topology:
I have two VLANs - 10 and 20. 2 DHCP pools are configured on 2 1841's interfaces - 192.168.1.0 /25 and 192.168.1.128/26 with default router sitting on 192.168.1.1 and 192.168.1.129 respectively. No issues with obtaining IP address from any of those pools.Laptop connects to L3 3550 switch (switchport access vlan 10), which, in turn, connects to 1841 router through trunk (with VLANs 10 and 20 allowed).3550 is connected to 2960 through trunk with VLANs 10 and 20 allowed.Wireless router is connected to 2960.I can successfully ping my wireless router and outside world from 1841 from fa0/1 interface, but not from fa0/1.10 or fa0/1.20 sub-interfaces - all packets got dropped. My laptop can obtain IP from both pools (depending on port I connect it to), but can't ping my wireless router and anything beyond it.
I attach my configs:Cisco Catalyst 3550:interface FastEthernet0/1 switchport trunk encapsulation dot1q switchport mode trunk switchport port-security mac-address sticky speed 100!interface FastEthernet0/2 switchport trunk encapsulation dot1q switchport mode trunk!interface FastEthernet0/3 switchport access vlan 10 switchport mode access!interface FastEthernet0/4 switchport access vlan 20 switchport mode access!Cisco 1841:
ip dhcp pool Vlan10DHCP network 192.168.1.0 255.255.255.128 default-router 192.168.1.1 dns-server 208.67.220.220 domain-name home.local
!ip dhcp pool Vlan20DHCP network 192.168.1.128 255.255.255.192 default-router 192.168.1.129 dns-server 208.67.220.220 lease 0 12
interface FastEthernet0/1 ip address 192.168.100.7 255.255.255.0 duplex auto speed auto!interface FastEthernet0/1.10 description VLAN10 Sub Interface encapsulation dot1Q 10 ip address 192.168.1.1 255.255.255.128!interface FastEthernet0/1.20 description VLAN20 Sub Interface encapsulation dot1Q 20 ip address 192.168.1.129 255.255.255.192!
Routing table on 1841:
[code]....
I have a Cisco 1841 router at home with version 12.4(13r)T advanced ip services. The setup is extremely simple:
1) PPPOE dialer to my service provider over ADSL
2) Nat overload on the dialer interface.
3) 2 V LAN s one for home network (wired) and one for wireless both v LAN's are connected through interface v LAN s respectively.
My problem is when I configure static NAT to map RDP or any other protocol to inside hosts this does n`t work.
"
ip nat source static tcp 192.168.20.3 2222 interface Dialer1 2222
ip nat source static tcp 192.168.20.3 3389 xx.xx.xx.xx 3389 extendable
ip nat inside source list 20 interface Dialer1 overload
"
When I open wire shark and sniff the traffic on home computer which is the one I`m trying to reach I can't see any traffic. And While performing Nat debugging I am also not able to see traffic going to that port (for example 3389).
I've got an 1841 router and am using NAT to expose certain IPs and ports to the outside world so that external users can see internal resources (namely, web sites). However, I can't seem to get it running such that I can visit the external IP address from inside the network and get the router to turn the request around so that it is redirected back inside the network. Shouldn't this be possible? Our previous router (a non-Cisco) was able to do this, but I can't seem to get the new one to do it.
A couple of key config lines:
interface FastEthernet0/0
ip address a.b.c.178 255.255.255.240
[Code].....
I tried to connect a 1841 to a Linksys with a static route. I am able to ping from a computer in the 1841 to a computer in the linksys network, but I can't ping from a computer in the Linksys network to a computer in the 1841 network?
View 7 Replies View RelatedI guess i am just getting old and forgot how this works, or i have an IOS load with an undocumented feature in it.A customer of ours wishes to have their exchange server appear to the outside world on a seperate IP address as their public pool address is.in the past this has not been an issue, however in the current configuration we are unable to get the source address to appear per the NAT statement it always sources on the overloaded IP. below is the relevant NAT config, am i missing something, or have i hit a IOS feature? [code] There is a 45% chance i have forgotten everything i learned on the NOC desk and a 50% chance that it is somethine really stupid and 5% IOS is broken
View 5 Replies View RelatedI want to SSH into a Cisco 1841 router and depending on the suffix added to the SSH (i.e ssh myrouter.myroute.com 2002), would like it to forward this request to a terminal server.Can this be done? If so, how does one accomplish this? I have done something similar with RDP but I was not sure about SSH.
View 3 Replies View RelatedWhat is the command to shutdown a cisco 1841 (say, to add a module)? I know how to reload / reboot, but does not seem to find any command with an obvious name.
View 1 Replies View RelatedI have an 1841 running Advanced Enterprise Services 12.4(22)T3 that is functioning as a DHCP server and DNS server. What I am trying to figure out how to do is have the DNS service respond to queries about the clients of the dhcp service. I have successfully enabled it as a caching server for other requests, like "google.com" and "cisco.com", but what about the hosts on the local LAN?
As an example, let's say a Windows computer connects to the network with the hostname "computer" and receives an IP address from the 1841 with the domain name "test.net". I would like the 1841 to serve DNS queries for "computer.test.net" with the IP address that it assigned.
We have a Cisco 1841 router that requires 2 levels of access, at the moment we have network admins logging in with a single username via SSH and with privilege 15 but we also need our helpdesk to login to run certain commands but not chaneg anything
View 4 Replies View Relatedwe've to configure our router 1841 to use both 2 interface Fe for two different vlan (also the second has to go on internet).
Actually we have int Fe0/0 configured with an ip address 192.168.1.1 for lan1 192.168.1.0/24 and we will use the second int Fe0/1 with another ip address like 192.168.2.1 for lan2 192.168.2.0/24.
see below configuration:
[code]...
I've never had a router's CPU suddenly hit 99% and just stay like it for hours even after a reboot. This router really does nothing with regards to CPU, I'm looking at it's CPU history (via SolarWinds Orion NPM software that we use) and it is arounf 1-3% all the time for the past 2 years.
I did a show debugigng and it seems no debugging is running
We upgrade our Internet service in our India office which required a new router. The local vendor suggested an 1841, so that is what we have. It has two fastethernet ports on it.
The ISP (Airtel) provided the following IP address information:
Public WAN IP : 122.181.23.200/30
WAN IP : 122.181.23.202SUBNET MASK : 255.255.255.252GATEWAY : 122.181.23.201Pri DNS : 125.22.47.125Sec DNS : 202.56.250.5
[Code]......
what is the latest firmware for cisco 1841 ? is firmware and router IOS image are same ?
View 1 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 am trying to config the following setup in the Cisco 1841. Able to ping the IPs of Vlan1(FE0/0/1), Vlan2 (FE0/0/1) and FE0/1 IPs from corresponding networks. But packets are not flowing to other side.
View 3 Replies View Relatedwe are trying to configure 1841 with dual Internet connection with failover using track.
View 4 Replies View RelatedI decided recently to switch out our border router (1841 12.4 advsecurity) with a shiny new 1941 (15.2 SEC/K9) as the CPU upgrade was needed.The core below acts as a VPN end point to various other remote offices we have, all of which have a similar network design at each end (and all entirely managed by me). All of these are still running 1841's with 12.4 advsecurity on them as well. These are all GRE tunnels with ipsec procection on them (not crypto maps). [code]
Everything else works fine (NAT, route-maps etc), it's just these IPSEC/isakmp tunnels that are not playing ballIt's definitely not an ARP issue (all arps were cleared) and ICMP appears to work fine (ie, I can ping the remote tunnel's public IP endpoint from the core using the loopback for that tunnel as the source). I am suspecting it's something strange with the stateful firewall config, but I did try and apply ipsec and isakmp-msft to the ip inspect list, with no success.
I have 3725 router with internal CF and external slot for CF. I tried upgrading and ended up deleting the iOS version on the internal flash, and can not now put the iOS back!! I turned it off.... so there was no active iOS..
I have tried formatting the CF card on an 1841 but the 3725 won't read it. It is obviously stuck at ROMMON
What is the correct way to format a CF card so my 3725 will read it and I can get an iOS back on it!!
I need to know the Cisco 1841 Router FE Maximum Bandwidth Support and the Cisco 3825 Router GE Maximum Bandwidth Support. I cannot find this information in Cisco for these old devices.I would like to have the platform capability for all situation (only IP base, with QoS, with ACL, with encryption, etc.)
View 1 Replies View RelatedI have a Cisco 1841 router connected to a Cisco 2960 switch.Users behind the router can't access the internet but when someone is directly connected to the switch with his PC and uses the IP Address found on the WAN port of the router, he's able to go on to the internet. [code]
View 4 Replies View RelatedI have got a l2 link of 512 kbps from two different ISP. I want to aggegrate the bandwidth of this connection so that I can feel like having 1 mbps connection. I am not actually talking about load balancing, but bandwidth/link aggegration. Can we have the solution of failover with different vlan from different isp ? Can we be able to make the link as a single link.
View 2 Replies View Relatedi have router 1841 have 2 interface.i make routing between vlan by subinterface in router and in switch trunk but vlan 5 cannot access internet
View 3 Replies View RelatedI have a 1841 deployed as my NAT device towards internet. NAT is setup so that internal addresses can access WWW. I also have some NAT translations opening speciic ports from outside to inside in the form: ip nat inside source static tcp A.B.C.D 443 A.B.C.D 443 extendable.
Now have an outside address/port setup with a public DNS reference and using NAT from outside to get access to the corresponding inside address. It works when being outside the LAN.
Now to the problem: From the LAN side of the router - i cannot access the public name. I can ping it - but my browser dont find the webserver behind the name. Someone told me it should be setup as "local firewall domain" - and i should set this up as "source NAT".
