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 :: Creating A VLAN On 2800

Nov 20, 2011

I have a problem to create a VLAN with a Cisco 2801.,I need to have base ports FastEthernet 0 / 0 and FastEthernet 0 / 1, in the same VLAN.
Basically I'm trying to switch access redundacion, now I have redundant switches in which I have the servers, but if one of these switches fails, and,coincidentally is where I have connected the router, the server runs out of internet connection.,I idea is to connect the FastEthernet 0 / 0 to a switch, and FastEthernet 0 / 1, to the other switch,but I managed to have these two ports in the same vlan, in order to have a unique IP for both FastEthernet ports,As I can do this?. do is a lot of documents using the switchport command, but this command is not available in my router, I tried different IOS, and nothing.,currently I have the following IOS: c2801-adventerprisek9-mz.124-24.T6.bin

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Cisco Switching/Routing :: 871 Creating Multiple Static NAT

Mar 11, 2012

I am trying to configure a Cisco 871 router.I have 3 servers on my network that need static public IPs but also still need to communicate on the local network.
 
I have given my WAN interface the first IP in the block and set up PAT for the rest of the computers on the network which is working fine. Next I set up static NAT rules for the servers translating 3 of the remaining public IPs to the internal addresses of the servers.
 
I can access those servers internally using the public IPs but not from outside the network. A tracroute from outside the network gets dropped when it gets to my ISP.
 
I've never configured more than one static ip for a network before and i know i've just missed a step here. Do I also need to set up static routes? Will that update the next hop's routing table?

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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 :: 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 Switching/Routing :: 4500 Rebooted When Creating L3 VLAN?

May 20, 2013

We have observed WS-C4507R-E got rebooted while creating the L3 VLAN ( while No shut).Is there any known bug for below IOS ?cat4500-entservicesk9-mz.122-40.SG.bin,

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Cisco Switching/Routing :: Creating VPC On Single Nexus 7010?

Jan 6, 2013

I'm looking to see if it is possible to run a vPC between to vDC's on a single 7010?  We have a Production setup that runs dual 7010's with vPC's between the chassis but in our lab we only have a single 7010 with a 32 port 10gig module.  I was thinking that maybe we could create 4 vDC's on the 7010 and run a vPC between the vDC's.

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Cisco Switching/Routing :: Documentation Of Catalyst 4500-X For Creating VSS And MEC

Mar 14, 2013

I was reading the documentation of the Catalyst 4500-X for creating VSS and MEC (multichassis etherchannel).In the VSS specific part, it's written"Cisco Release IOS XE 3.4.0SG does not support Layer 3 MEC".

Can I still use VlanX interfaces ad route through them?In my setup I only have IP addresses assigned to vlanX interfaces (with some VRF-lite magic)[code] Does that sentence only mean that I can't have IP assigned directly to the MEC?

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Cisco Switching/Routing :: Creating A Span Port On Router 3640

Oct 1, 2012

i am running c3640-is-mz.124-21.bin on a cisco router 3640. i am trying to create a monitor session in the CLI and everytime i type the command Router(config)#monitor session 1 interface ethernet2/1 % Invalid input detected at '^' marker. Router(config)#monitor session 1 interface ethernet2/1 ^% Invalid input detected at '^' marker. i get the error invalid input ?

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Cisco Switching/Routing :: 3560 / Creating Extended VLans And Subinterface?

Jan 24, 2013

We have a 3560 switch running IOS universalk9-mz.150-1.SE3.bin.Recently, we saw two problems with this switch:-
 
1. if we try to enable subinterface on any routed interface , for eg. gig1/1, it says invalid input detected. It doesnt accept encapsulation command also.   Following was done to enable subinterface: 

   int gig1/1
  no ip address 
  int gig1/1.2000
  ip address 1.1.1.1
 
under the gi1/1.2000 subinterface, it doesnt present the option of ip address.
 
2. we created a layer 2 vlan 2000 like:   vlan 2000 When we do an exit after creating this vlan , it gives following error:-
 
%SW_VLAN-4-VLAN_CREATE_FAIL: Failed to create VLANs 2000: extended VLAN(s) not allowed in current VTP mode

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Cisco Switching/Routing :: Creating Stack Of 2960s From Single Live Switch

Sep 23, 2012

I have a live 28port Catalyst 2960S switch. By live I mean that there is an essential piece of equipment plugged into this switch that can suffer little to no downtime. Over the course of time the number of devices patched into this location has increased to exceed the 24 ports available and we have had to resort to adding unmanaged switches to fill the need. We have acquired an additional 2960 & stacking modules that I would like to stack together, keeping the existing switch as the master. It is my understanding that the stacking modules are hot-swappable and that this member switch can be added without bringing the master switch down, thus creating zero down time for the financial server that is connected.
 
The steps I believe that need to be followed are as such: write mem to existing switch and backup to our TFTP serverinstall the stack module in the existing (while powered up) and new (while powered down)place the 2 redundant FlexStack link cables on both switchesthen simply power the member switch on After boot the member switch will get it's OS and configuration from the master and I can begin moving CAT5 cables from the unmanaged switches to the stack.

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Cisco Switching/Routing :: SG200 / 3550 - Creating VLAN And Isolating PC On Network

Feb 12, 2013

I was given a task of creating a vlan and isolating one pc to access an internal website (192.168.90.15) on a specific port (port 8080)The pc is connected in the following manner:

PC--> HP Switch --> Cisco Small Business SG200 switch --> 3550 Catalyst 1, 3550 Catalyst 2 and 3550 Catalyst 3.

I have created a vlan 110 on the Main 3550 Catalyst switch and successfully added the pc to that vlan.However, that PC must be able to access the internet and an internal website on port 8080.I have placed an access-list on the main 3550 catalyst switch which is connected to our router as below:

Client ip address: 192.168.100.2
VLAN 110: 192.168.100.3
 
access-list 110 permit tcp host 192.168.100.2 host 192.168.90.15 eq 8080access-list 110 permit icmp host 192.168.100.2 anyaccess-list 110 deny ip 192.168.100.0 0.0.0.255 ? I was unable to access the webserver even after many attempts.

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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 :: 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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Cisco Switching/Routing :: 3550 - Not Getting Internet As Well As Ping

Feb 19, 2012

We had re-arranged and purchased new public ips and changed with new modem. Following is the new network setup diag
  
I have started the configuration, but stucks at a point. Current configurations setup and ip assigment is as follows
 
ISP modem/router(192.168.3.254)-->(192.168.3.1)1811W Router(192.168.2.254)-->(192.168.2.1)3550(interface vlan 10 - 10.0.1.254, interface vlan 192 - 192.168.1.254)--trunk-->2950

1)Configured 3550 as layer 3 switch and create a default route to  192.168.2.254

2) Configured 2 static routes(for 2 vlan range traffic) and one default route to 192.168.3.254

3) ip pass through is not configured yet, still the public ip is configured at the isp router 
 
1811 static route configs
------------------------------------
Ip route 0.0.0.0 0.0.0.0 192.168.3.254
Ip route 192.168.1.0 255.255.255.0 192.168.2.1
Ip route 10.0.1.0 255.255.255.0 192.168.2.1 
3550 static route config
-------------------------------------- 
Ip route 0.0.0.0 0.0.0.0 192.168.2.254
 
Testing results 1)All  lan communications are working fine(inter vlan also), ping to all  servers from router is getting and ping to outside public ips are  getting from router,but not getting ping from switch 3550 to 192.168.3.254  and any of the public ips(internet).

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Cisco Switching/Routing :: 2600 - Cannot Ping Outside Router

Oct 25, 2012

I am connecting a 2600 router to an ISP. Interface 0/0 is connected to the ISP using DHCP. Interface 0/1 is connected to the inside providing DHCP services to the inside. At least it should only be providing DHCP services to the inside. I also have a public static IP that is NAT to a private static IP. Everything is working except the computer on the static IP. From the router I am able to ping inside and out from each interface. I am able to ping both interfaces of the router from the computer on the static IP but I cannot ping outside the router. If I do a debug all I see a reject for the gateway of the static IP but it has “mobile IP” in the text string. Not sure what mobile IP is relating to. Networks are as follows:

0/0 DHCP 10.X.X.X
0/1 192x.x.x
Static 75.X.X.X  
no ip dhcp use vrf connected
ip dhcp excluded-address 192.X.X.1
ip dhcp excluded-address 192.X.X.2
ip dhcp pool CLIENT

[code]...

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Cisco Switching/Routing :: Add N2K To Existing N5K - Can't Ping Devices

Mar 5, 2012

I have several cabinets with top-of-rack N2K's attached to N5K's via FEX's.  9 cabinets with 2 switches each. 
 
Recently I added 3 more cabinets to the mix, for a total of 12 cabinets with 2 switches each.
 
I can get into the new switches and see the FEX's and configure ports, etc. but no device I attach to the 'new' N2K's is pingable over the network.  I can take the same device, same cable, and attach it to a legacy N2K talking to the same N5K's, and it immediately joins and is pingable over the network

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Cisco Switching/Routing :: 1841 Able To Ping IPs Of Vlan

May 2, 2013

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.

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Cisco Switching/Routing :: Unable To Ping / SSH To Interface On 3925?

Jan 9, 2013

I just barely put in a Cisco 3925 on our network. I've configured gigabitethernet 0/2 to live on our management VLAN with an IP address of 10.129.0.31/16. I did a "no shut" on the interface. Everything should be ready to allow me to ping and/or SSH to that interface but I can't. It's really weird because I've done this a thousand times (at least on ASAs). I must be missing something. At any rate, the default gateway of the management VLAN is 10.129.0.1. I can ping that from the router. I can also ping that from my laptop (which lives on a completely different VLAN). But I can't ping the router from my laptop or vice versa.
 
Building configuration...
 
Current configuration : 1360 bytes
!
! Last configuration change at 19:05:13 UTC Thu Jan 10 2013
!

[Code].....

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Cisco Switching/Routing :: 6509 - Unable To Ping IP In FWSM

Nov 17, 2012

I have a vlan defined in FWSM for server farm there is a one server with two IP addresses and teaming has done on it how ever from FWSM i am able to ping both IP addresses but from core 6509 switch i am only able to ping one ip address. from FWSM show ARP command displays the same virtual mac addresses against both IPS of the same server.

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Cisco Switching/Routing :: 3750 - Can't Ping The Default Gateway

May 3, 2012

This would probably sound like a stupid question but it took at least 2 hours of my time so far. I have a 3750 switch where a router and a server is connected. From the switch I can ping the router and server with no issue (directely connected). But from the server I am not able to ping the router. The router and the server are in the same subnet. The router is configured as the default router for the server. I am not able to ping the server from the router either. Here's the output of the ip route from the router. The server IP address is 10.1.200.21 and the router IP address is 10.10.200.1
 
10.0.0.0/8 is variably subnetted, 8 subnets, 3 masks
C       10.1.30.0/24 is directly connected, FastEthernet0/0.30
C       10.1.20.0/24 is directly connected, FastEthernet0/0.20

[Code].....

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Cisco Switching/Routing :: I3560 Switch Getting Ping Delay

Jun 21, 2012

I have 2 Servers connected to same cisco switch i3560 n same L2 VLAN, i ping from Server 1  to Server 2 i got delay 800ms?why is that?

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Cisco Switching/Routing :: 3550-24-PWR Can't Ping Aironet 1231

Oct 30, 2012

I have two 1231G Aironet's that work correctly when I connect them to my Catalyst 3548XL and my 3550-48-XL switches.  When I connect them to the 3550-24-PWR switch I do see them when I issue sh cdp nei det.  It shows me the IP of the wireless router.  But when I ping the Aironet, I do not get any replies. If I plug the Aironet into my 3548XL and ping the IP, I get 5 replies.  Here is the port config on both switches:
 
     switchporrt trunk encapsulation dot1q
     switchport native vlan 100
     switchport allowed vlan 1,69,100,125,200,1002-1005
     switchport mode trunk
     spanning-tree portfast
 
Here is the sh cdp nei det results:
 
     Device ID: North_AP.mtd.home
     Entry address(es):
       IP address: 192.168.100.104
     Platform: cisco AIR-AP1231G-A-K9    ,  Capabilities: Trans-Bridge
     Interface: FastEthernet0/3,  Port ID (outgoing port): FastEthernet0

[code]....
 
I have tried two versions of the IOS on the 3550PWR switch.  Right now its: c3550-ipservices-mz.122-44.SE6

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Cisco Switching/Routing :: Can Ping 881 From UC320w But Cannot Vice Versa

Nov 25, 2012

I have a uc320 and router directly connected and I can ping the router from the 320 but cant ping the other way. As a result I only have SIP traffic working outbound but cant get and calls inbound.

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Cisco Switching/Routing :: 3560x / VPC Peer Not Able To Ping Server

May 28, 2013

The setup I currently have is a server attached via an etherchannel to a 3560x switch, which is connected to a pair of 5548UP's that are connected via vpc. The 5548's both have a single connection to 6500 series switch that does the layer 3 routing, the ports that connect the 5548 to the 6504 are trunk ports. The problem that I am having is that one of the 5548's can ping the server that is connected down stream while the other 5548 can't. While the local switch can ping the server, and other servers on the same switch in the same vlan can ping it as well. The vlan interface I am pinging from on each switch is on the same subnet as the server I am trying to ping. One other thing, Nexus #1 which can ping the sever has the mac address in its mac address table, while Nexus #2 doesn't. However I added the static mac entry to Nexus #2 and that did not allow me ping either.

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Cisco Switching/Routing :: C3560 Swap Out Not Ping Across Network

Jun 17, 2012

Had a switch die over the weekend, a c3560, per our normal procedure I pulled the hardware put a very basic config on it(vlans, portchannel, uplink ports, ip of management vlan, con and vty security, snmp, enable secret, and hostname).  Then I use solarwinds orion to upload a copy of the old config to bring the switch back to the same state as the one that failed.  Its a system that has worked for us 3 or 4 times in the past.  But this time when the base config was on the box it couldnt ping across the network.I have tried clearing the arp cache and the dynamic mac tables, i verified the routing tables and even removed the 10.1.185.128/27 route and re-added it, saw the routing update go across to the other 65k, tried bouncing the edge switch(i cant bounce the 65k's), took down the po between the edge and 65k.

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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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