Cisco Switching/Routing :: 2621 - Unable To Ping Internal Interface
Dec 3, 2011
I've got a 2621 configured as my main gateway to the internet - right now it's obtaining a DHCP ip from a the ISP's proprietary router set to bridged mode.
As of now, I'm unable to ping the internal interface of the router. I can ping external IP's only, even though I have DNS servers listed, i am unable to resolve host names. I'm running a few servers to which people are able to connect to my web server, among other services. I even have a crypto map setup to another 2621 across the country and can ping all internal ips on the other end... I JUST CANNOT PING THE INTERNAL INTERFACE of the router!!
I've noticed that when I ping the router during it's boot process (using linux un-interupted) I get a response in a very short window, then dies again. I'll post my config below:
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 !
I have a 2621 that I am configuring on the internet. My ISP gives me a static DHCP assigned address and then two more static addresses that are not part of the same block. (e.g. 1.2.3.4 is static via dhcp and then they give me 5.6.7.8/30).
I have fa0/0 getting 1.2.3.4 ia dhcp. I have 5.6.7.8 on a loopback interface for PAT/NAT as I have the main one on fa0/0 doing vpn to a remote ASA. The problem is that I have yet another device that needs a public IP, mainly 5.6.7.9... I want to hook that device up to fa0/2 (this box has three fa interfaces). How do I setup fa0/2 if I want to give the device on it a real live public IP address? I have done this before, but it must have been 10 years back on an even older CISCO and I can not remember how I did it.
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.
I have a Cisco ASA 5505 and I have my internal and external interfaces configured but I currently cannot ping from the inside to an IP Address on the outside. I had this setup and working and I have another set of equirement that I am replacing that is working with my service provider so I know it is a configuration issue. When I ping 4.2.2.2 for example I get:
Destination host unreachable
Do I need to add a static route from my inside interface to my outside interfaces?
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.
We recently had a contractor deploy a 4500 catalyst switch with a WS-x45-SUP7-E. After installation and configurations, HP openview is detecting a "downed" interface on the 4500 chassis that is not in the configuration. I have attached an image with the interface circled. We assumed that it may be a configuration issue with openview, however after running diagnostics with a network analyzer, the same ip address for the down interface is still detected. Is this some sort of internal virtual interface on the SUP7?
This isn't a big deal as the rest of the ACL works fine, but this is an annoynace since the web auth redirects to our company website (internal for now) after successful login.We have a Cisco WLC that provides access to our production and guest wireless environments. The guest environment of course is in a separate vlan (10.10.50.0/24). So I created this ACL:
access-list 107 permit udp any host 10.10.2.13 eq bootpc <----internal DHCP server access-list 107 permit udp any host 10.10.2.13 eq bootps access-list 107 deny ip any 10.10.0.0 0.0.255.255 <---all internal networks access-list 107 deny ip any 172.28.16.0 0.0.0.255 <----DR Network access-list 107 permit ip any any int vlan 50 Desc "Guest wireless network" ip access-group 107 in
This ACL basically gives the wireless guests access to an internal DHCP server and full access to the internet. For the 10.10.50.0/24 scope, the DHCP server assigns Internet DNS servers and my rationale is that wireless clients would access it via the external IP address but I suppose it doesn't work quite like that with the website being behind the same router as the client machines.
I have created a VPN connection for ASA 5512-X by using the wizards and nothing seems to be wrong on the wizards's config.I am able to connect to the network by using the VPN but unable to ping internal network.Below is my config for your reference:
Result of the command: "sh run" : Saved : ASA Version 8.6(1)2 ! hostname FAA-ASA-1 enable password crzcsirI44h2BHoz encrypted passwd 2KFQnbNIdI.2KYOU encrypted
I'm facing a problem regarding loss of ping packets when i do ping test from nexus3k to another nexus3k connected directly.however there is no error counters on the interfaces on both of devices.the ping failutre is occurring only whenever i do ping test with a large number of ping packets.I don't see the ping loss symptom with default ping test (default ping test is 5 packets).
H/W : N3K-C3548P-10G S/W : 5.0(3)A1(1) nexus3k# ping 1.1.1.2 PING 1.1.1.2 (1.1.1.2): 56 data bytes 64 bytes from 1.1.1.2: icmp_seq=0 ttl=254 time=2.732 ms 64 bytes from 1.1.1.2: icmp_seq=0 ttl=254 time=2.732 ms
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.
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.
I cannot ping and end node on my system from my Cisco 2911. I've tried to configure my computer to ping the device and I am able to. It seems the difference between using my computer and the 2911 is that with my computer I am able to set the default gateway as the end node's ip.
i have a device connected to 2960 switch. It is an access port and i could ping the device from other switches , also from outside the lan. But i am not able to ping the device from 2960 switch alone. I suspected and checked the arp table and it was showing as incomplete. I created the manual arp entry and tried pinging but no luck.
Yesterday I configured the 7010 Nexus switch. I created a VDC and allocated few ports and configured VLAN for testing. After enabling feature interface-vlan i was allowed to configured L3 interface for the vlan. I assigned ip address and connected few server to check the reachability but it says Destination Host Unreachable.
I have been working on figuring out a VPN problem on my companies ASA5510. I was accessing the device via: ASDM, SSH using Putty, and even initially with a console cable (also using Putty) using a computer in the networking closet. All 3 of these access methods worked properly for me.I believe I may have inadvertently changed something as of Friday using ASDM. I am mostly assuming this because, as of yesterday I can no longer connect to the device. I actually cannot even communicate with it (ping the interface I normally use to manage, which I could previously ping). No computer on the same subnet as me is able to ping the interface. The device is still accepting VPN connections, dishing out DHCP addresses and everything else it normally does, but I really need to be able to gain access to it again. I am thinking to reboot the device when there is some downtime, in the hopes that ASDM doesn't save to startup-config and only to running-config.
One of my client has BSNL leased line with LAN IP POOL we configured those on ASA 5510 nad Internet working fine but from cloud we are not getting any response for ping requiest please find running configuration below:
ciscoasa(config)# sh run : Saved : ASA Version 8.2(1)
I'm unable to apply a policing limit in a switchport of the CISCO861 router. This is my configuration:interface FastEthernet0, service-policy input wired-input,service-policy output wired-output end.
I have router connected to 2 3550 switches directly. 3550A and B switches are running HSRP. OSPF is running between Router and 2 switches.
From Switch B i can ping the Router Wan interface but not the internet sites. from Switch A i can ping any sites?
Switch B 3550SMIB# sh ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1
IP routing is disabled on the 3750 (it's acting solely as a switch) IP routing is enabled with an EIGRP process running on the 3550 router that has the network for the 3005 broadcasting.
I can ping the vpn 3005 concentrator from a telnet session in the 3550 but not from the 3750.I can ping between the 3750 and the 3550 vlan management interfaces. Visually speaking it's like this
I know this because I tracerout to the 3005 from the 3750 and it resolved the default gateway configured for the 3550 properly but then started timing out.
The 3750 is trunked to the 3550.
3750 is vtp client mode 3550 is vtp server mode
I'm wondering if there's a layer 2 issue involved here as it is a VTP domain and maybe it's not returning properly.
Here is my Lab Setup: 2691 is BGP nei to R4 router and they are not directly connected. 2691 and R4 are in same AS 6500. 2691 Config---router ospf 1 network 3.3.3.3 0.0.0.0 area 0 . Its advertising its loop back IP to OSPF domain.
We can see that 2691 and R4 are BGP neis and 2691 has 200.1.x.x routes in its route table. My question is why from 2691 router i am unable to ping any route learned by BGP from R4?
2691Router# ping 50.1.1.0 Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 50.1.1.0, timeout is 2 seconds:.....Success rate is 0 percent (0/5)2691Router#ping 200.1.2.0 [ code]...
When I tried to upgrading PIX525 6.3 to 7.0 , Not able to Ping the host from the PIX 525 Inside interface which is on the same subnet, Also from the host to Inside Interface , Tried with Directly connected laptop with Cross cable and using Straight cable via switch, But the results end with fail.
I need to setup a vlan between the 6509 and 2621 router. This needs to be a VLAN (200) the runs between the devices that uses DOT1Q trunking. The end result is all the networks (vlans) on the 6509 can talk to the LAN on the 2600 (10.133.22.0 / 23) and visa versa.
Device 1 6509 with CatOS / IOS Config I did on the MSFC: Interface Vlan 200 ip address 10.10.10.1 255.255.255.248
Setup is like this: Poly com IP phones -> Cisco 2960 switches -> Cisco 2621XM router running 12.28(r). A Windows 2003 server running on HP Proliant DL380 G4 with the correct DHCP scope is configured for the IP phones, also sitting on a Cisco 2960 switch.
A typical port config on the 2960 is: interface FastEthernet0/1 switchport mode access switchport voice vlan 60 mls qos trust cos auto qos voip trust spanning-tree portfast spanning-tree bpduguard enable
Relevant section of the config on the 2621XM router: interface FastEthernet0/0 no ip address no ip redirects no ip proxy-arp ip pim sparse-dense-mode [Code] .......
This used to work on a Windows 2000 server which sat on different piece of hardware, but stopped immediately after the migration to Windows 2003 server was done. There was no change on the router or switches prior to or after the server migration. I see DHCP server log on the 2003 server giving DHCP NACK because the phones are apparently asking for IP's in the data VLAN.
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.
I have a lab setup to take my CCNA and CCNP and I'm having issues trying to get WAN connectivity back to a switch at the end of my network. My lab environment consists of 1 - 2950 switch, 1 - 2620 and 1 - 2621XM. I have 1 Ethernet connection from each router to the switch and 1 serial connection from the 2620 to the 2621XM. I have the serial interfaces in a shutdown state right now so there is no loop since I do not have Spanning tree setup on the ports on the switch yet.
Right now using the fast ethernet ports on the routers and I have no issues its when I shut down those Ethernet ports and try using the serial interfaces when I start having issues. So my network layout is Ethernet from switch port f0/4 to port f0/0 on 2620 and serial from s0/1 on the 2620 to s0/2 on the 2621XM. My 2621XM f0/1 is whats connected to the WAN and I have no issues getting to the WAN from my 2621Xm or my 2620 but when I try pinging any website or even my WAN default gateway from my switch I get nothing!
Ive also noticed that when I do a IP NAT translation (after accessing the WAN from my 2620) on my 2621XM the source IP is of my serial connection not the ip of my 2620 router? I have my default gateway on the 2620 as the the IP of my serial interface on the 2621XM and vice versa because my LAN network is 172.16.1.0 and my WAN is 172.16.9.0. I have a /31 setup between my serial connections 172.16.11.0 (s0/1) is on the 2620 and 172.16.11.1(s0/2) is on the 2621XM. I used the SDM (ver 2.5) to setup NAT to have f0/1 with Nat outside and s0/2 as Nat inside. Encapsulation is HDLC between the serial links. Ive attached the running configs of the switch and routers.
I have an ASA5510 running version 8.2(5) I am having an issue with routing/natting from an internal network to the outside interface IP on port 443 which has a nat back in to another internal address. i works externally in from a public address. i also see log messages to do with IP Spoofing
I am trying to set up a site to site ipsec connection. AT site A, I have Vlan's 652-10.55.216.0/24, Vlan653 -10.55.217.0/24, Vlan 654-10.55.217.0/24 and Vlan655-10.55.219.0/24 and at site B, Vlan650-10.55.214.0/24 and Vlan651-10.55.215.0/24.The problem is that I am unable to get any associations when i do a "sh crypto isakmp sa"/"sh crypto ipsec sa" on either router at each site.I am also unable to ping by pluging in a laptop into the site at each site. Laptop at site A is set to access vlan 655 and laptop at site B is set to acess vlan 651. I can ping all the devices from one end to the other.I have turned on debug crypto isakmp, debug crypto ipsec, debug crypto ipsec errors but dont get anything at all as output.I have attached the sh run for each router Cisco (1941/K9) and switch (Catalyst 3750) at each site.
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.
