Cisco Switching/Routing :: 2 Routers 2611XM No Ping Between Hosts In Each

Mar 18, 2013

I've set up a simple lab network of two cisco routers 2611XM and to each router I've attached a computer (host). I have set up a dhcp ip addresses for each host. I've set up a correct routing as well on each router. There are 3 networks:  192.168.1.0/24 192.168.2.0/24 192.168.3.0/24 The first network between the first host and first router, second is between two routers and third is between the second router and second host. If I use first host (192.168.1.20) I can ping to any ip address (192.168.1.1 (router 1), 192.168.2.1 (router 1), 192.168.2.2 (router 2), 192.168.3.1 (router 2)) except the second host ip address which is 192.168.3.20. When I sit on the second host (192.168.3.20) i can ping to 192.168.1.1 (router 1), 192.168.2.1 (router 1), 192.168.2.2 (router 2), 192.168.3.1 (router 2) but i can't ping to the first host which is 192.168.1.20.  I've even tried with attaching a switch to a router and assign it an ip address of 192.168.1.3 and the ping was echoing to it.

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Cisco Switching/Routing :: 1841 - Unable To Ping Remote Gateway Or Hosts On Other Side Of Router

May 30, 2012

I am just setting up a simple scenario with a 1841. Server @ 172.31.1.1 cannot ping 172.31.0.254 or 172.31.0.105. It can ping 172.31.1.250. The router can, on the other hand, ping devices on both networks. This is just for testing routing theory so I don't know why hosts on either side of the network cannot ping each other.
 
I am only using the FastEthernet interfaces on Router 1841.

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Cisco VPN :: 2611xm - Unable To Ping Remote Host Through Tunnel?

Apr 20, 2012

I am in a test environment using an ASA 55005 and a Cisoc 2611xm router. ASA is running version 8.4 and router is running is ios12.4. My VPN tunnel comes up but I am unable to ping between remote hosts. I used the ASDM and SDM for the configuration. Attached is a copy of both configs.

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Cisco Switching/Routing :: Container High Load On 2611XM (MPC860P)

Mar 20, 2013

I have a Cisco 2611XM (MPC860P) that i use at home, purchased it when i enrolled in my CCNA certification.
 
It never occured to me that i had an issue with this router. I have 10Mbps uplink at home, and sometimes its really slow, when i talked to my ISP, we did a lot of troubleshooting to see why we had high latency, but as it turns out, the issue is My Router.
 
I only have a few machines inside my local LAN so i never even thought this could happen. When i download a file using the 10Mb/s connection, the CPU load goes in less than 1 minute to 99%.
 
I thought it might be the IOS version of it, and upgraded it to a newer version, with the same results. Here is an output of it:

router1#show processes cpu sort
CPU utilization for five seconds: 99%/67%; one minute: 45%; five minutes: 13%
PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process

[Code].....

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Cisco Firewall :: Cannot Ping To Inside Hosts From ASA-8.2

Jun 8, 2013

I am struggling to get successfull pings beween asa and inside hosts but couldn't succeed. Done packet tracer result is acl-drop
 
Here is the running config
 
Prem-ASA(config)# sh run
: Saved
:

[Code].....

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Cisco VPN :: ASA 5505 Can't Ping Remote Hosts

Jun 24, 2012

configuring ASA 5505 to be able to ping remote host.Setup - We have a site-to-site (192.168.1.0/24 - 192.168.2.0/24) VPN setup with client VPN access (IP Pool, 172.16.50.0/24) on 192.168.1.0 ASA 5505.Issue - Not able to ping host on 192.168.2.0 from VPN client 172.16.50.0 but  able to ping 192.168.1.0 host.

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Cisco WAN :: ASA 8.4 Can't Ping External Hosts From Inside

Jun 9, 2011

DNS resolution works and I can surf the web without fail.  But if I try to ping any external hosts (I can ping inside interface of ASA fine) from the LAN I get timeouts.  I can ping anything from the ASA without fail.

ASA Version 8.4(1)
!
hostname fw1-nat-ann
domain-name inmd.infoblox.com
enable password anWLNen9CTFp7B/X encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names

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Cisco WAN :: 2800 Internal Hosts Cannot Ping Outside

Dec 6, 2012

I'm having an issue where internal hosts cannot access the internet but I am able to ping external hosts when I console into the router. The router is a 2800 series. [code]

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Cisco WAN :: 1800 Cannot Connect Or Ping Hosts On Other Side

Jul 13, 2011

I have recently bought two 1800 cisco routers and have tried to connect them over wan serial link, but I am having problems when trying to access resources on the other side. I am a newbie to cisco and I wonder if the problem is with the configuration or the new routers or the serial link between the sites. Below is the show-running config results I have done on both routers; I can ping the serial interfaces from both sides and remotely, but I can't ping hosts or FE from other side.

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Cisco Firewall :: ASA 5505 - Cannot Ping Local Traffic And Hosts

Jul 24, 2012

I have, what I believe to be, a simple issue - I must be missing something. Site to Site VPN with Cisco ASA's. VPN is up, and remote hosts can ping the inside int of ASA (10.51.253.209). There is a PC (10.51.253.210) plugged into e0/1.

I know the PC is configured correctly with Windows firewall tuned off. The PC cannot get to the ouside world, and the ASA cannot ping 10.51.253.210.

I have seen this before, and I deleted VLAN 1, recreated it, and I could ping the local host without issue. Basically, the VPN is up and running but PC 10.51.253.210 cannot get out

ASA Version 7.2(4)
!
hostname *****
domain-name *****
enable password N7FecZuSHJlVZC2P encrypted
[Code]...

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Cisco Switching/Routing :: Hosts Can't Reach Each Other In Same VLAN In 3560G

Nov 19, 2012

We have recently started as Internet service provider in an open metropolitan.
 
We use a Cisco 3560G Layer 3 switch, where we have all our vlan where we have konfiguerat ex. Switch (config) # interface vlan 150, an interface for each VLAN capabilities such as int vlan 1 - 10/10 int vlan 2 to 30/10, int vlan 3 100/10 and so on.
Our int vlan is configured as follows:

dhcp relay information trusted
ip address <x.x.x.x> <x.x.x.x>
ip helper-address <x.x.x.x> 
Ports (ex. int Gigabit Ethernet 0/1) are configured as follows:
description Uplink
switchport access vlan x

[Code].....
 
Now the problem; we have a customer in ex. vlan 3 who needs to access a server provided by another customer in the same vlan (vlan 3), and access to each other in the same vlan is not possible. You can access the server from any other vlan, but when it comes to access to another host in the same vlan, you will not reach it.

We suspect that the energy company has configured with pvlan isolated. If we use the command ip local-proxy-arp on each vlan, it works to reach each other, but it seems that our 3560 becomes overloaded when ip local-proxy-arp is enabled and it streaming and use IP telephony it doesn't work. The response time at ping is longer and the loss of packets increase with ip local-proxy-arp enabled. The other operators in the metropolitan also uses Cisco 3560G so the hardware should be sufficient.

We have also tried to add no split-horizon, but it made no difference. How do we get around this without negative consequences? Probably need something that makes you allow to send out the same interface that it came from, because it works as long as you are in another vlan.

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Cisco Switching/Routing :: 6500 - Connectivity To Access Hosts Outside VRF

Nov 16, 2010

Currently have a setup where we have multiple SVI interfaces in a VRF on a Catalyst 6500 Switch. All these SVI belong to the same VRF. In order to achieve connectivity for hosts within the VRF to access  hosts outside the VRF (Hosts reachabe via the Global Routing Table  (GRT)) I am thinking I need to configure 2 things
 
1. Creating a summary route for all the subnets within the VRF in the Global Routing table.
 <Config on 6K in Global Routing Table>
 Note: 10.10.10.10 is the ip address of loopback 10 and this loopback 10 is  in VRF Red
 ip route 172.16.0.0 255.255.0.0 loopback10 10.10.10.10
 
 2. Create a couple static routes within the VRF for networks that reside in the Global Routing table but which are not local to this 6K.
 <Config on 6K within the VRF Routing Table>
 
Note: 1.1.1.1 is the ip address of loopback 1 and this loopback 1  is  in the GRT or not assigned to a VRF
ip route vrf Red 172.32.32.0 255.255.255.0 loopback1 1.1.1.1 global
ip route vrf Red 172.32.40.0 255.255.255.0 loopback1  1.1.1.1 global
ip route vrf Red 172.32.50.0 255.255.255.0 loopback1  1.1.1.1 global
 
I have read through some posts and it seems to indicate that I cannot point to a loopback interface as it is not a point to point interface. How this solution can be achieved. The reason I was pointing to a loopback was so that I am not tied to a particular physical interface and for the summary route that was created in step 1 really not sure what L3 interface I could point to since I have multiple SVI's that are in the same VRF. Would I also need to create that same summary within the VRF. I don't intend to since I am assuming that once within the VRF the more specific connected interfaces would take affect and forward respectively.
 
In addition to the above I also need determining the forwarding behavior when there is a ip helper address configured under the SVI's which are in a VRF but the ip address for that helper is not part of the VRF. I would think if a static route is configured under the VRF for that helper address network pointing it to the Global Routing table it should work. The config for that would be
 
ip route vrf RED 172.32.52.5 255.255.255.255 loopback1 1.1.1.1 global

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Linksys Wireless Router :: E4200 Could Ping But No Connection On Any Hosts

Nov 28, 2011

I purchased this router a few days after its release, and I was very impressed with its functions. I came from a DD-WRT flashed router with all the bells and whistles, and the E4200 lacked some features but I felt it was a fare trade off for the GHz & dual band.All was well with all my settings (quite a few to name QOS,forwarded, etc)I also updated the firmware when it came available and re entered same settings.

 Approx 3 months after use I had 0 WAN connection via eth0 or WIFI, when I logged into router I  was pulling a Public IP from my ISP. I could ping from inside the router but no connection on any hosts, very strange. Powercycling Modem/Router yielded same results.. I then backed up my vast amount of settings, and did a 30/30/30 reset.. With no configs I had no issue browsing on any host on my network. So I restored from backup and the issue was back again..So I did another 30/30/30 reset. Then went and reentered the exact same settings as before and the issue was gone.

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Linksys Wireless Router :: E4200 - Unable To Ping Wifi Hosts From Lan

Nov 20, 2011

I've got a new E4200 router, Everything works just fine, but I'm unable to ping any WiFi hosts from my LAN, I can ping LAN from any WiFi Host.If I disable NAT on the E4200 I'm able to ping WiFi hosts but then all WiFi Hosts are unable to talk to the LAN.

LAN - 192.9.209.0
WiFi - 172.16.1.0

Same config runs perfect on my WRTG54GL.

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Linksys Wireless Router :: E4200 Unable To Ping Wifi Hosts From Lan

Jan 27, 2012

I've got a new E4200 router, Everything works just fine, but I'm unable to ping any WiFi hosts from my LAN, I can ping LAN from any WiFi Host.If I disable NAT on the E4200 I'm able to ping WiFi hosts but then all WiFi Hosts are unable to talk to the LAN.
 
LAN - 192.9.209.0
WiFi - 172.16.1.0
 
Same config runs perfect on my WRTG54GL.

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Cisco Switching/Routing :: 3560G Can Ping Devices In Enterprise LAN But Cannot Ping Interface

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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Cisco Switching/Routing :: ASA 5505 - Dynamic And Static Internal Hosts Setup

Nov 21, 2012

I'm working on setting up a template configuration for the Cisco ASA 5505 device that we'll use to configure more routers for various client needs. One of the requirements requested of me is the following: Internal hosts assigned a DHCP address are blocked from the internet Internal hosts with a static IP are permitted access to internet All internal hosts can communicate regardless of state
 
Now, I'm fairly new to this and I'm certain my terminology isn't correct so googling the problem has been fruitless. I have followed basic configuration guides and have configured the device to hand out DHCP addresses to hosts plugged in ports 1-7. If I'm plugged in and specify my address manually in the OS I am blocked from any access so I can only assume there is an access policy or some rule preventing me from authenticating against the router despite having set up VLAN1 to be the entire class C subnet. What sort of steps would I need to do to configure this? New access lists. For the record, the dhcp addresses are in the range of 10.100.31.64-10.100.31.95. VPN users are assigned an address from 10.100.31.220-10.100.31.240 and there seems to be no issues with that configuraiton. I don't wish to constrain what addresses a user can use should they specify a static IP (10.100.31.5 should be just as valid as 10.100.31.100).

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Cisco Switching/Routing :: C6509 Loss Of Packets ICMP Sent By Different Hosts In Different VLAN

Oct 17, 2012

I've a big problem with a loss of packets ICMP sent by different hosts in differents VLAN. Here my architecture:
 
Core Switch : 2 Switch's C6509 (Version 15.0 (1) SY1)- Mode VSS - One lien VSL , the other link is defective.Access Switch: C3750 , Connected to Core Switch through 2 fibre optique wires.Topology: redundant ring
 
When I send consecutive ping message I  found always a missing of packets . Furthermore When I insert the  "show ip traffic" command., the parameter "bad hop count" increase after a loss of packets. I've 2 hosts connected in my network and they send packets with TTL =127.
 
In the Core Switch I haven't configured the MEC because it gave me troubles with the packets multicast.

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Cisco Switching/Routing :: 2960s / Marking The Traffic Between Two Hosts (Data Replication)

Feb 6, 2013

in switch 2960s ( c2960s-universalk9-mz.122-55.SE5 ) , i want to marking the traffic between two hosts (Data replication), i choose to use " mac access-list"  to classify my trafic before apply the policy marking . but did'nt work . c

!  my mac ACL
mac access-list extended test
permit host 000a.1a41.aa52 host 000a.1a41.1bc2
!
class-map match-all test
match access-group name test

[code]....

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Cisco Switching/Routing :: Can Ping From R1 To R3 SVI4 Gateway But Cannot Ping Host

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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Cisco Switching/Routing :: 4.2.2 Unable To Ping 1 Internet Site From Edge Router Able To Ping

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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Cisco VPN :: Supported IOS For 2611xm?

May 2, 2011

Which is the most stable, less processor intensive and VPN supported IOS for 2611xm. Currently I am using 12.4(15)T7 C2600-ADVENTERPRISEK9-M. But this image is  causing lot crashes. My router uptime never crossed 4 hrs. It is crashing very frequently. Any issue with this image in 2611."

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Cisco Routers :: RV220W Blocks Hosts File?

Jun 16, 2012

anything I put into my hosts file, will not go through the Cisco RV220W router. This is part of the set up:
 
192.168.1.10 << RV220W
192.168.1. 15 << A client machine
192.168.1.99 << Internal DNS with forwarder to OpenDNS (208.67.222.222 & 208.67.220.220) + a laptop that's not on the internal network at all.
 
Now, the client machine and the laptop both have an entry in their hosts files:
174.156.12.81 insight.hello.com
 
From the laptop, I can both browse to insight.hello.com, and I can ping it in Xterm.

From the client machine (192.168.1.15) which is behind the Cisco Router/FW, I can ping insight.hello.com, but I can not browse to it. This is especially strange since the ping goes through the Router every bit as much as the http traffic does, so why is the router giving me a DNS error on that, but the ping goes through just fine?
 
The hosts file is supposed to supercede any other information from anywhere, so it out to not be a problem for the router either. Yet, it obviously is.
 
I have tried to disable the internal DNS server as well as OpenDNS and just run the ISP's DNS servers, but no change - I still get that blue DNS error screen from the CIsco router.
 
Above IP's & hosts are fictitious.
 
The hosts file doesn't get blocked in a sense, but what happens is that if you have "Content Filtering" checked - even without any rules - the router can not verify that 174.156.12.81 is in fact insight.hello.com in this case, since it doesn't exist in the public DNS system.
 
So, I unchecked Content Filtering and now it works as it should.

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Cisco VPN :: 2611XM Cannot Access Remote Resources

Feb 24, 2011

I am having an issue with my Cisco VPN Client. I am new to VPN setup, so this is probably something easy I am missing. I have a 2611XM router acting as my internet gateway for my local lan, and my VPN Server. I am doing all my testing from a company laptop with a mobile broadband card. The VPN will connect, but anytime I ping anything within the inside network, it comes back with the public IP of the outside interface. I have NAT overload configured so everything on the inside network can access the internet, which it looks like might be causing my problem.
 
When i remove the nat overload on my fa0/1 interface, the vpn will connect to any resource on the inside.

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Routers / Switches :: Windows Ping Success But Mac Ping Fails

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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Cisco Switching/Routing :: Cannot Ping IP 192.168.1.1 From SWH02

Nov 29, 2011

[code] I can not ping IP 192.168.1.1 from SWH02. I observed there sth wrong when trunking over SDH. Because when I config int vlan 121 on another switch(SWH04) already trunking with SWH01, I can ping IP 192.168.1.1 from SWH04.

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Cisco Switching/Routing :: Cannot Ping 8.8.8.8 After Creating VPN

Apr 8, 2013

I could not ping 8.8.8.8 and access internet after creating the VPN. Below is my setup and router configuration: [code] From the router 1941, i could ping up to 58.185.149.141 but not up to 58.185.149.140. Since i cannot ping 58.185.149.140, i suppose i cannot ping 8.8.8.8. I am sure 58.185.185.140 is there as i use another PC which is connected directed to the office network instead of through the router 1941, it could ping 58.185.149.140.For your info, the g0/1/0 is connected to the PC while g0/1 is connected to the office network.

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Cisco Switching/Routing :: 1760 - Cannot Ping Next Hop

Mar 1, 2012

I just got a new 1760 router, I have an issue.
 
My FastEthernet 0/0 interface uses DHCP and got 172.16.2.126 /16.
My Ethernet 0/0 interface is my internal interface, it has static 192.168.0.1 /24.
On the Ethernet 0/0 interface, I have a PC attached, IP 192.168.0.150 /24.
 
The router's gateway is set to IP 172.16.1.1
 
My PC can ping 192.168.0.1 and can ping 172.16.2.126 (both interfaces of my router).
My router can ping anywhere on the Internet.
But my PC cannot ping 172.16.1.1. Firewall disabled, all security disabled.

[code].....

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Cisco Switching/Routing :: 3825 / Cannot Ping LAN IP

Jul 17, 2012

I have a cisco 3825 router with two GE interfaces. GE0/0 is connected to a switch through ethernet cable. I have configured the GE0/0 interface with IP address. I have also configured static route for the local network. However, now I can only ping the GE0/0's own IP from the router. Here are the running-config:
 
hostname Router
!
boot-start-marker
boot-end-marker
!
!card type command needed for slot 2
enable secret 5 $1$4gxa$sykc0mcaxpCIrGc86i1ZE.

[code]...
 
The 10.1.52.1 is the current gateway on the 10.1.52.x LAN.

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Cisco Switching/Routing :: HWIC 4ESW - Cannot Ping It

Dec 28, 2011

I have a 2811 ISR, a lab unit with almost nothing yet configured other than some IP networks on serial and FE interfaces to ping to other lab routers. And I have one HWIC-4ESW installed, and I amrunning IOS 15.2.I want to set the card as a single routable interface and just have the ports act like switch ports, which I imagine is the default design of these cardsI work a lot with Cisco 891 ISRs so figured it's the same here, assign an IP to interface Vlan1 and all is well. That was wrong, obviously more config is required.It seems there are a lot of differing answers out there, so far none what worked for me. The best looking one I could find said to assign an IP to the Vlan 1 interface, then go to each of the four FE interfaces on the switch module.

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Cisco Switching/Routing :: 3750 - Extended Ping With Df Bit Set

Mar 5, 2012

I am trying to test the MTU between two 3750 switches I have in the lab.  I've set the MTU with the command "system mtu 9000" on both switches and rebooted.
 
The only connections on the switches are the gig ports connecting the two switches.  Each interface is  a member of vlan 1.
 
I am doing an extended ping.  I set the datagram size to 2000.  When the df bit is set the ping doesn't go through.  If the DF bit is not set the ping goes through.
 
The debug ip icmp shows, 4d00h: ICMP: dst (1.1.1.1): frag. needed and DF set.
 
Why is fragmentation needed when the MTU is set to 9000?
  
GigabitEthernet1/0/1 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 0015.2b7d.0d01 (bia 0015.2b7d.0d01)
MTU 9000 bytes, BW 1000000 Kbit, DLY 10 usec,

[Code].....

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Cisco Switching/Routing :: 871 VPN Server Unable To Ping LAN

Nov 12, 2012

I have 2 routers, one is an Apple AirPort Extreme with a static outside IP address, I also have a Cisco 871 with a static outside IP address.  The Airport Extreme connects to a switch on the private network and has an IP address ending in .1.  The Cisco 871 connects to the same Private network and it ends in .2.  The 871 is setup as a VPN Server.  now when clients connect to the VPN they can ping the VLan IP Address on the 871, but they can t ping any other hosts on the smae network.  The hosts on the private network can ping the vlan on the 871.

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Cisco Switching/Routing :: 857w IP Cannot Ping Device

Jun 27, 2012

I have a spare Cisco 857w that I am playing around with to learn.I managed to reset it to default, upgrade the ios to 12.4 However for the llife of me I cannot ping this device.

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