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 WAN :: 1760 - Can't Ping Other PC

Jul 15, 2012

I've made a static route between a  Cisco Router 1760 and a Cisco Router 2651xm using crossover cable to  connect to their Fast-Ethernet ports so this is the configuration:

2651xm(config)#ip route 192.168.10.0 255.255.255.128 192.168.1.0.

And the other router's configuration:

2651xm(config)#ip route 192.168.10.0 255.255.255.128 192.168.1.0 (Same thing)
The IP of the 2651xm is 192.168.10.2
The IP of the 1760 is 192.168.10.1.3

I'm I doing it wrong? is the destination wrong? I can't seem to ping any  other IP. I've got another laptop. I've put a static IP of  192.168.10.5, the primary Laptop is using has an IP of 192.168.1.138.  I'm trying to PING the 192.168.10.5 laptop. But this doesn't work.

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Cisco VPN :: 1760 - Cannot Ping Clients

Oct 21, 2011

I have a Cisco 1760 configured as easy VPN server. Using the cisco VPN  client I can connect to the VPN server. The problem is that there is no  ping between clients. When I connect several clients to the VPN server  there is no ping between the clients. But when I login into the router I can ping the clients and make ssh  remote logins into the clients. It seems that there is no access between  the clients and they cannot communicate at all.
 
The cisco router is placed in DMZ zone. Remote clients can connect into the router.

Here is the configuration of the VPN server:
 
[code]
!
version 12.4
service timestamps debug datetime msec

[Code]....

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Cisco WAN :: 1760 V - Unable To Ping External Addresses

Mar 1, 2010

I have a 1760-v router set up at my home lab and I am unable to access IP addresses outside my local network.  I have my Cisco router's fast Ethernet port connected to a small net gear router which then connects to my cable modem.  The Cisco router is able to ping local address fine, but when I try to ping an outside address or domain name it times out.  However, when I am at the CLI and type something like Ping { URL}, it resolves Google's IP address but it will not ping it.  I have IP DEFAULT-GATEWAY and IP NAME-SERVER both pointing to my net gear router and pointing to my ISP's DNS server.

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Cisco Switching/Routing :: Cannot Get Out Of Rommon Mode 1760

Dec 10, 2011

I'm currently pursuing to take my CCNA and am currently studying for it, but have recently encountered a problem with one of my 1760 routers that I can not solve.Yesterday I went to boot up my router like normal, however when I went into hyperterminal I noticed the router was in Rommon mode. Thinking I could change the configuration registry, I tried to bypass the NVRAM by using confreg 0x2142. However this still causes the router to go into Rommon mode. I am getting an error that states that there is insufficient memory to load the IOS image. [code]
 
I have used the dir flash: command and can see the IOS image, and try to boot from it (boot flash:iosimagename) but it will still go back into rommon mode. I also just swapped the RAM from my other 1760 into this 1760 and it booted up and went into normal configuraiton mode without any issues. However, the other router now will not load it's IOS image and I get the exact same error.I'm at a loss here, and have searched to figure out where or how I can just wipe the router clean to try and start fresh, but cannot get out or Rommon mode. The only thing I can think of is that the RAM went bad since it wont boot up either machine.

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Cisco Switching/Routing :: Can't Configure Data T1 On 1760 Router

Nov 18, 2012

For the past few days I've been attempting to configure a data T1 on a Cisco 1760, but I'm stuck at:

Serial0/0                  <our ip address>    YES NVRAM  up                    down
 
To provide a bit of background. This router used to be configured with a T1 via Frame-Relay; which worked fine. Now we recently change offices and providers, and the provider did not offer any information as to which encapsulation type to use, and if Frame-Relay which DLCI to use, etc.
 
Now I've been trying to setup the T1 connection and testing various settings such as encapsulation HDLC and PPP, but no luck. I also played around with the line codes and framing; which resulted in the following framing sf int down, line prot down, framing esf int up, line prot down. Regardless no luck.
 
Now I've been following several guides and examples mainly the following: [URL] In this guide they make mention of a WIC-1DSU-T1-V2, but as you can see in the show diag snippet at the bottom; we have a WIC-1DSU-T1 version 1.5. I dont' know if this poses a problem for us.
 
Throughout the entire process I've seen a few irregularities for example:

1. Router(config-if)#service-module t1 cablelength short 110ft
^
% Invalid input detected at '^' marker.
 
The IOS doesn't recognize any command with service module t1 ca , and the only recognized command with C is clock.
 
2. If I enter the following list of commands under the serial interface:

!
interface Serial0/0
ip address 10.0.0.51 255.0.0.0
service-module t1 framing esf
service-module t1 linecode b8zs
service-module t1 timeslots 1-12 speed 64

[code]...
 
And I do a sh run all I get is the following:

!
interface Serial0/0
ip address 10.0.0.51 255.0.0.0
load-interval 30
!
 
Although i can do a show service-module s0/0 I can see all of the configured parameters (see below)
 
Module type is T1/fractional
Hardware revision is 0.128, Software revision is 0.2,
Image checksum is 0x73D70058, Protocol revision is 0.1
Receiver has no alarms.
Framing is ESF, Line Code is B8ZS, Current clock source is line,
Fraction has 24 timeslots (64 Kbits/sec each), Net bandwidth is 1536 Kbits/sec.
Last module self-test (done at startup): Passed

[code]...

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Cisco Switching/Routing :: 1760 - DHCP To Multiple VLans

Mar 13, 2012

I can not get dhcp to work.I can ping from the switch to both vlans...
 
here is my config for the router.....
 
Router is a 1760
Current configuration : 1379 bytes
!
version 12.4
service timestamps debug datetime msec

[Code]....

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Cisco Switching/Routing :: 1760 Crash Info Not Recovers At Flash

Aug 10, 2012

Got a problem with my 1760 router. Bought it from ebay and booted it on today and got this error,It has 180224K/16384K bytes of memory and 2 paritions of 32768K flash.I erased both partitions and put a different version of the IOS on (still 12.4) and there is no difference, still get the errors.These aren't on any of my other 1760 routers so I assume they are linked to the problem.

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Cisco Switching/Routing :: 1760 / Make Router To Drop Packets Instead Of Rejecting Them?

Mar 31, 2012

I've got a 1760 router which uses port forwarding (25, 80 and 443) for my internal network services. If, let's say, I try to open a FTP connection on the router, of course the connection will be refused. Is there a way to make the router DROP the packets instead of rejecting them? My Linux iptables configurations drop packets who fail the firewall test, so I would like the router to perform that behavior.Commands for port forwarding:ip nat inside source static tcp 10.10.0.1 80 int f0/0 80 (these work fine)

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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 :: 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 :: 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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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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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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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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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 :: 2960-S - Can't Telnet / Ping Into Switch

Sep 4, 2012

I have a Cisco 2960-S Switch, It is connected to a jack in the building to check the settings, Interface VLAN 1 has an ip, there is a default gateway, Any host connected to switch can access the network resources. But the problem is that I have to use Serial Cable to configure it. I cant ping or telnet into it from any other device. PC's are on different subnets/VLANS.
 
Basically this switch is connected to a port in a different switch, Do i have to make a trunk?

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