Cisco WAN :: 2801 Cannot Always Ping 8.8.8.8
Feb 5, 2013
I have a Cisco 2801 with dual ADSL WAN connections, PATing to a network hanging on the fa0/1 interface. From the server connected to the router (hanging off of the fa0/1) interface, I can ping any address and there are no issues. But from inside the Cisco CLI, pinging certain addresses causes erratic behavior. [code]
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Apr 23, 2011
i have configured remote access vpn on my 2801 router's gio0/0 int ip x.x.x.1. i connected my laptop through vpn client from internet. i connected successfully and my vpn router gives me the assigned ip block y.y.y.1. from my laptop i can ping the other int gio/1 ip z.z.z.1 but i cant ping the ip z.z.z.2 of my core sw which is connected on router's int gi0/1.
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Feb 7, 2012
I have one problem doing a ping to a router lan interface, I have 3 routers (2801) connected between each other (separated 1 mile each), the link is established trough microwave signals (connected to the 2801 fast ethernet interfaces), every router has a connection to a LAN. One of them is located at headquarters.Last thursday I replace one of the router with a cisco 2901, i configure the router with the same configuration that was on the 2801, i power up the router and the 2 link were up without problems.One day after the noc called me to tell me that after i replace the router they can't ping the router IP lan interface on the new 2901 (before the replacement the ping was sucessful). I called one user the lan connected to that 2901, and they can do a ping to the router's LAN IP address.
I can ping the 2901 IP wan interfaces, I can ping the LAN users ip address, but i cannot ping the router LAN IP address, from my desktop, and neither the 2 routers 2801 connected to the 2901.I show the configuration on the 2901, I couldn't change it because i didn't have time to do that, but i'll change the configuration to use ipsec tunnels.The configuration as you can see, has a crypto map, but the acl used by the crypto map, only permits the interfaces ip address, so i think that doesn't work, so the traffic doesn't get encrypted, but i don't know if that is the problem why i can't do a ping to the lan interface. [code]
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Mar 31, 2012
I have a new 3560G to set up a small network for a remote site. I configured the vlan and an SVI as the gateway. The switch is also the DHCP server for the LAN. I configured Gi0/2 as L3 port, connecting to the nearest neighbor. My network runs EIGRP so i advertised the routes into the EIGRP process. The switch forms EIGRP neighbors and learns all routes in the enterprise network. The problems I'm having now are: 1. The switch learns all routes in my enterprise LAN and can ping devices in the enterprise LAN, but I can’t ping any interface on the switch from the enterprise LAN. 2.
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Dec 12, 2011
I set this up and I can ping all the gateways but never the hosts. I was hoping I could make these links between 6500's a mix of L2 and L3. Check it out. They are connected in a linear fashion R1--->R2--->R3. I can ping from R1 to R3's SVI4 gateway but I can never ping a host on that SVI4. I was hoping that I could use the port-channels between 6500's as routed links or as trunk links depending on the type of traffic....thought it would ease the migration. I suppose I could always get rid of the port-channels and just make separate L2 and L3 links between the 6500's.
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Jan 18, 2013
From My Router that connects to Cable modem i am unable to ping website 4.2.2.2I am able to ping all other websites fines.Same website i can ping from my pc and all other switches fine.Router has only 1 ACL thats for NAT.
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Aug 15, 2011
When I ping an address from my windows machine, it succeeds, but when I ping to the same IP on my MAC OS X machine, it fails.
1. Why?
2. How to get successful ping on my MAC machine?
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Nov 9, 2011
I have a 2801 router. The Fa0/0 int shows up/down. I have plugged it into diffrent cisco and non cisco switches and even a cross over cable to my laptop. I cant seem to get the protocol up. I have changed the speed to 100 and duplex to full to try to get it up that way and nothing. [code]
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Dec 23, 2011
I have a 2801 with dual ISP connections, and I have configured route-maps to direct voice traffic over ISP1 (working just fine), and I'm attempting send all other traffic over ISP2 (traffic is load-balancing instead). The connection to ISP2 is DHCP, and I have configured a route-map to route this traffic using the 'ip next-hop dynamic dhcp' command, but when I look at the route-map, it states the following: ip next-hop dynamic dhcp - current value is UNKNOWN..Is there something that I need to enable in order to see the next-hop, and properly send traffic over the ISP2 connection? [code]
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May 3, 2012
I have a Router 2801 What conf should i make to access the webserver from the same LAN.
!
no ip dhcp use vrf connected
ip dhcp excluded-address 192.168.1.1 192.168.1.63
[Code].......
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Jul 23, 2007
I looked but could not find any information on what's the use of the USB interface on my 2801 router. I saw something about Cisco USB memory module and eToken by Aladdin. Is this interface restricted to Cisco and Aladdin only?
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Oct 14, 2012
I have a Cisco 2801 with flash: c2801-advipservicesk9-mz.124-16.bin where I use to doing VPN IPSEC.My problem is where I do a connection with a client, if my VPN dont have a traffic, the tunnel are closed. If a receive or send any traffic, the tunnel get up again.If don't have traffic, this tunnel is closed and after is opened other tunnel where is changed the conn-id to 999 for example.This comportament is normal? Exist a form that my tunnel never close? I enabled the parameters below: [code] But the tunnel continues closing if a don't have traffic.
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Mar 21, 2012
We are setting up a new VPN from an ASA to a cisco 2801 router (behind a third parties checkpoint firewall). We seem to be almost there with the setup but the tunnel is not working correctly. I have included a debug from the 2801 router and its config and a diagram of the setup. [code]
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Aug 4, 2011
I have a Cisco RV110W small business router setup at my home. It has one of those HTML GUI interfaces, check the boxes, etc.., to get things working. Basically, your typical home router with VPN. I have enabled the VPN, it's PPTP, added the password, and now it's automagically configured! I can successfully VPN to my home with a Windows7 client. Here's my problem, I now need to VPN into my home router with a 2801. Is this possible? Everything I found on the subject has only been to setup a Cisco IOS router as a VPN server or tunneling to another IOS router. No examples using an IOS based router as the client.
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May 29, 2012
We have one Router Cisco 2801 at the customer site and facing issue of having very High CPU coming to 99%.CPU utilization for five seconds: 99%/28%; one minute: 99%; five minutes: 98%
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Oct 31, 2012
I am trying to run the following commands on a 2801 router, but the commands are missing:
mls qos
mls qos map cos-dscp 0 8 16 40 32 46 48 56
The only QoS command i have in global config is (no MLS qos) :
REMOTE-ROUTER1(config)#qos ?
restore-show-output Restore old show output
shape-timer Set the HQF shape timer interval
The router is running IOS:
System image file is "flash:c2801-ipbasek9-mz.151-4.M5.bin"
Am i just running the incorrect IOS or am i missing somehting, i need to change the QoS Map for my Nortel VoIP. The VoIP phones connect to a 3750 PoE which used to conenct to a 2651XM to route VoIP and data traffic over the same copper pairs (WAN link to hub site) hence the need for a Service policy but being Nortel phones, require changing the cos-dscp map. the 2801 is going to replace the 2651XM using a new HWIC.
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Jun 23, 2011
We have a 2801 rotuer in place that hooks up to a metro ethernet link that's obviously dropped off to us via ethernet. Anyway, the throughput granted to us is 20MB, but for some reason I can't get it to go anything above 11MB at the most. I've spent a day going through documentation trying to find the fastest speed the 2801 supports and I can't find my answer. I've seen that the high speed wan cards in this router support up to 45MB, but I'm not using a WAN card, only one of the two built in 10/100 ports.
what the maximum throughput speed is on a 2801?
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Mar 26, 2011
I have a FWSM in my 6509, this firewall is managing three VLANs, one of which holds a file server. As you all know, FWSM do not support VPN like the ASAs and PIXs do. I have been trying to add remote access to this file server LAN all week. The only VPN device i have is a 2801 router.
first layout: VPN router behind FWSMstatic translation from FWSM LAN (private) to VPN WAN (public)default route was facing back at FWSMip address pool was to be NAT'd on the interface facing the FWSM the idea was that my VPN address pool would be NAT'd back to the FWSM on it's VLAN. since the FWSM was managing this VLAN and recognized the source IP of the translated address pool, i would have access to my precious file server.
second layout: VPN router fa 0/1 on a /30 with 6509 (public)VPN router fa 0/0 still on the same LAN as FWSM (private)address pool for VPN once again NAT'd to fa 0/0default route pointed to fa 0/1static route of FWSM LAN pointed to fa 0/0 this idea was to have more of a 'inside' and 'outside' interface on the VPN router. this too did not work, having used every trick in the book, i could still not ping anything on the FWSM LAN while VPN'd in the network (aside from the LAN interface on my router)
trace route was showing that the all routes were headed out fa 0/1 (default route) and all to my FWSM died. i really don't think my address pool is being NAT'd, though my route map statement applied to the NAT policy is permitting my VPN address pool.
I am new to VPN technology, one of those things that happened to land on my lap. how this layout could work? there are no good VPN Remote access walkthroughs for a situation like this (2801 allowing access to a FWSM controlled LAN)
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Jul 31, 2011
The application here is a wind power project, built in two phases, without any effort to coordinate or integrate the two sites during the design phase. All operations activities for both phases are performed by one staff out of a common location. This is a rural area and Internet connectivity is mission critical due to contractual obligation with Electrical Utilities.
The client has a need to reconfigure a network which has grown over time in a layer by layer approach, whereas at every point in time that an additional T-1 or other changes occurred to address a specific need, no thought was ever put into integrating the entire site as a whole. It is at best a dysfunctional solution which somewhat accomplishes thier needs, and at worst, a kludgy, grossly security compromised, and difficult to use infrastructure. There is every kind of equipment one can imagine, each installed by some entity providing needed services on the site, but forced to make uninformed decisions because the client really has no IT department to coordinate with. Over time, every vendor just provided their own switch, router, or maybe figured out how to reconfigure another existing device to also provide the routing or access needed, To say the least, it's a mess.
The client requests a solution which provides a means to accomodate 6 internet connections (4 T-1 lines, and 2 satellite) in a manner which aggregates available bandwith and provides redundancy. The T-1 lines will be the main internet access, with the satellite connections only used if available bandwidth falls below some threshold, say 3Mb. There are many internal networks which need to be routed to and between, in total, about 20 subnets. There are 2 SCADA (Control) networks which have a mandatory requirement of 1Mb each, a VoIP system which does not use any internet connetivity as there are 6 POTS lines dedicated to it, an internal office LAN and a turbine manufacturers site LAN.
The T-1 lines, at 1.5Mb x 4 = 6Mb.
The 2 SCADA networks require a guaranteed 1Mb each, the remaining 4Mb is to be allocated between the office LAN and the turbine manufacturer site LAN. The satellite connection are only to be active in the event bandwidth falls below 3Mb.
There are 2 Cisco 2801 routers on site which could be reutilized if appropriate. Each T-1 has it's own Adtran CSU with Ethernet out. All T-1 lines are /29 IP Blocks. 2 of the T-1 lines are adjacent IP Blocks, for what its worth.
Everything here is open to reconfiguration. The client wants this finally integrated correctly with the ability to address emerging Electrical Utility cybersecurity requirements in the immediate future.
An ideal solution would be fully redundant to eliminate the single point of failure at the edge router. As to whether there needs to be separate edge and interior routers, I just don't know that. I would guess everything could be done with just a pair of redundant routers at the edge, but perhaps it is better to do the interior routing between subnets on a different router(s).
Again, the goal is a well integrated, redundant, and secure solution. My part is mostly complete, with the OSP part of the network finally at 100% after 5 years of stupid and careless misconfigurations and bad fiber splicing (by others).
I'm absolutely covered up in business at Layer 1 & 2 on these sites, as the physical plant and associated network elements are typically very poorly designed, specified, and implemented. The complexity of this job leads me to seek outside advice and ultimately a more qualified Cisco professional than me. I'm experienced enough with Cisco to know when I'm in over my head. I know a diagram would be nice, but at this point I've only got a very detailed diagram which reveals too much site identity information to make public. I'll wait to see a few comments and in the meantime work on removing site identity info so I can post a good diagram for everyone to see.
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Dec 19, 2012
Someone told me the commands, but I can't remember them. Have a router (2801) at the end of a highly utilized T1 link/router. How do I protect it so my SSH and/or Telnet sessions will get serviced if the router is real busy.
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Apr 20, 2012
1- Cisco Router
Eth0/0 : Ip address 192.168.1.1 /24 == connected my laptop of 192.168.1.2
/1: Ip address : 192.168.2.1 /24 = connected cisco swith
2 - Cisco Switch
VLAN 2 Name : Sales : ip address 192.168.3. 1 = connected computer 192.168.3.2
VLAN 3 Name : Marketing : ip addres 192.168.4.1 = connected computer 192.168.4.2
So I want my laptop that connected the router Eth0/0 Interface should access both VLAN 2 and VLAN 3 computers
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Oct 3, 2011
I've been looking and I can really find much info about this, I got a 1841 and 2801 router with ADSL WIC cards and both are synching really low compared to my cheap home router
This leads me to believe I need a firmware update so I got the adsl_alc_20190.bin and loaded it into flash and reloaded my router but its still saying my firmware is using an embedded one.
sh flash:-#- --length-- -----date/time------ path1 1000636 Oct 4 2011 05:59:54 +00:00 adsl_alc_20190.bin
sh dsl interface atm0/1/0ATM0/1/0Alcatel 20166/20174 chipset information ATU-R
[Code].....
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Dec 6, 2010
I have a nat and vpn setup on my Cisco 2801 router.Everything is working as expected except the NAT. I have a single static nat translation but it only works for inbound and not outbound. Going outbound, it uses the default overload nat address of the outside interface. [code] I want to add another mailserver. But I fear if one mailserver were to get black-listed, they would both be reporting there ip address as the same address (the one on the ethernet interface) which would blacklist both mail servers.Again, inbound nat works ok, but outbound is just using the IP of the ethernet0/0 address.
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Dec 14, 2011
I have a cisco 2801 router, My ISP in which i receive my bandwidth from has assigned me a ip address/gateway etc for my FA0/0 from our Telco switch. I need to figure out how to bridge through the public ip scheme they are issuing me through FA0/1 (setting up a transparent bridge) so in example if i was givin 192.168.1.189 on a /30 network for my router (assigned to FA0/0) how to i set it up to bridge through the publics?
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May 31, 2011
I'm having trouble setting up a Cisco 2801 as an internet router between our firewall & our ISP.I've setup FastEthernet0/0 as the WAN port & FastEthernet0/1 as the LAN port. I've setup a default gateway pointing the next hop (the ISP),when I plug in a pair of laptops configured to mimic our IP scheme, I'm able to ping thru, but when I put the router between our firewall & ISP I'm not able to get out to the internet (can't ping google) I can still ping the next hop.,Our old router died, so I am unable to pull up its configuration. Here is the code I'm come up with so far.
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Dec 26, 2012
I 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.
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Jan 27, 2013
I have to configure failover on both router. if one get fail then the other router should be dial.Physical connection
•1. Two routers (Cisco 2801) are connecting with splitter through RJ 11 port.
•2.Only one ISP link is coming in splitter.
Requirement: As per as customer requirement. He wants redundancy with in both 2 routers. If one goes down then the other router come up. And same configuration on 2801_R2 router. I am planing to do HSRP on our lan network (2801R1,2801R2 ehternet interface which connected to switch). from switch i will create two default route with (next hope) virtual ip address.
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Mar 7, 2011
I have a 2801 router with a HWIC-3G-cdma card that I have inherited from a predicessor. How to use a cellular card on a router and need to get this thing up and running. Any example config that I can see or point me in the right dorection to get this up and running? I have the cellular card set up as Cellular0/1/0 on the interface, I assume that that was done by default, and it has an IP address. The Static Route of 0.0.0.0 0.0.0.0 Cellular0/1/0, in the config with only 2 other interfaces as being direct connection. But that is as far as I recognize. Do I need to set up a router protocol? Which one? How do I use the cellular card? Do I need to have an ISP connection?
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Feb 27, 2012
I wanna upload ios image of 36mb on a 2801 but I get error not available space. The router already has ios image of 40mb and available space is around 15mb. How to delete existing image and upload the new image?
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Jun 11, 2012
I have Cisco 2801 router with IP Base image, i have upgraded its image into advance Ip services for using IP SLA features but after upgradation HWIC card not showing in configuration.
When i recall IP base image then configuration show presence of HWIC card but with advance IP services HWIC card not showing.
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Sep 7, 2011
I would like to upgrade rommon on my Cisco 2801 but this is what I get: [code]The router stops here and I am forced to power off and on again and the upgrade does not succeed.
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Mar 12, 2011
i have a Cisco 2801 router which is running ssl vpn, previously my ssl vpn is working, but when i reset the config to factory default and restore the working config, then i experienced this problem;
Here is my crypto config, here is the error:
CRYPT O_PKI: Can not select private key (key name)
webvpn gateway web vpn-gateway host name sslvpngtwy01 ssl trust point key name in service.
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Mar 12, 2013
I have a Cisco 2801 with two DSL cards that are both routing to the internet, with NAT to the private LAN interface. I am using IP SLA and route maps to accomplish this load balancing. I have rsolved most of the issues that come with this setup, but I still have a major issue: I cannot SSH into both of the WAN addresses, only one. I have included whqat I think is the most relevant config info.
#sh run
! ........some info omitted........!
!
[Code].....
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