I have created the tunnel interface on cisco 1841 router. The tunnel is up but can't ping to it's interface ip, the ping drops.
R1#show ip int brief
Interface IP-Address OK? Method Status Protocol
Tunnel10 10.10.10.1 YES manual up up
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I have an GRE Tunnel across my head office and remote site with multiple subnets using cisco 1841 routers.I can ping most of the devices on the remote side, but I can not ping certain devices.These devices respond to ping requests on the local LAN, but not through the WAN link. If I change the IP of device than it start responding. I am using same gateway and mask on these devices.The remote site is running classic STP on switches with distribution switch being the root bridge.
View 4 Replies View RelatedWe have configure a L2L vpn between Asa and 1841 router. We are facing this issue.The tunnel is not getting up from the 1841 site never. When we are trying to generate traffic from the ASA site the tunnel is up and we can see decryps and encryps packets.
Router 1841 Config:
crypto isakmp policy 100
encr 3des
hash md5
authentication pre-share
group 2
crypto isakmp key * address 213.249.XX.XX
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I m trying to make the vpn session using m GRE tunnel between cisco 891/k9 and 1841 router.. there is the fixed ip add with the 1841 router, and another one doesnt have the static ip from the ISP, In this case, im going to use DMVPN, The problem is , after completing the configuration, the tunnel inteface of the 1841 router will be seen like this.
-status: reset
-protocol: down
I need to work with the full tunnel feature of the IOS SSL VPN using a Cisco 1841. Here is what I see...
-I login to the portal page and click the "Start" button for "Tunnel Connection (SVC)"
-Security Alert message "This page requires a secure connection which includes server authentication. The Certificate Issuer for this site is untrusted or unknown. Do you wish to proceed?" I click yes.
-Anyconnect says "Please wait while VPN connection is established"
-Anyconnect error "The certificate on the secure gateway is invalid. The VPN connect will not establish"
We are currently experiencing a problem on an IP SEC VPN tunnel that has all of us here completely stumped. We are hoping that one of you experts out there will be able to assist. Here are some basic details:
NETWORKS
An IPSEC site to site tunnel has been built between the two sites on different networks.
PIX 515E - MAIN SITE
Network 172.16.0.0/24
CISCO 1841 - REMOTE SITE
Network 172.16.99.0/24
ISSUE
All traffic flows over the VPN from the 172.16.99.0 network in the direction of the Pix, such as RDP, SIP etc. Pings will go in both directions across the tunnel. Other than the pings most traffic will NOT flow over the tunnel from the 172.16.0.0 network on the pix to the 172.16.99.0 network on the 1841. It would appear that something on the 1841 is blocking traffic coming in over the tunnel from the 172.16.0.0 network as we can not get a wire shark capture on a PC on the 172.16.99.0 network, other than the ICMP traces. Usually this is an access list problem but we have checked and double checked the configuration and can't see anything.
TROUBLESHOOTING SO FAR
1. Have tried inserting various access list changes to the tunnel on the 1841 to make specific reference to the 172.16.0.0 network.
2. Have tried various NAT entries.
3. Have removed and then recreated the VPN tunnel from a fresh start.
4. Have made the MTU 1400 on the inside interfaces on the Pix and the 1841.
The tunnel is fully up at all times and as we say can ping in both directions.
im trying to configure IpSEC over Gre tunnel, but the traffic pass unencrypted, i cant find why this is happening. Here are the confg of the two routers (1841)
OFICINA#sh run br
Building configuration...
Current configuration : 1281 bytes
!
version 12.4
service timestamps debug datetime msec
[Code].....
I'm setting up an 1841 as a basic router for now and I cant get it to work.
[code]....
I have a 1841 router connected to an ISP (currently SDSL EFM 10Mbps through an ISP modem, the router and the model are connected with a FastEthernet interface). On another location I have a linux server.There is an ipsec tunnel (3des-sha esp) between the router and the linux server (actually done with a crypto mac).The router has a hierarchical QOS policy on the egress interface.When sending traffic from the network inside the router to the linux host without the ipsec tunnel, everything is working fine and throughput is correct.When sending traffic from the inside network to the linux host internal ip through the ipsec tunnel, some packets are lost and the traffic throughput decrease.When sending traffic through the tunnel in the reverse direction (from the linux host to the internal network), everything is fine.I looked at the QOS statistics and the dropped packets counters don't increase. I looked at the egress/ingress interface statistics and no packets dropped there.I lowered the MTU on the egress interface, but it didn't solve the problem. I played by sending various ping icmp packets size, but even small packets are sometimes lost.I tried to check the router CPU, but it seems relatively fine (<= 10%)I captured the traffic on both side, and I see the packets emitted, and then I can see that some of the esp packets of the corresponding side are not received, so it looks like the cisco router is the culprit. This 1841 router is running: 1841 Software (C1841-ADVIPSERVICESK9-M), Version 12.4(24)T4,How can I troubleshoot where and why those packets are lost?
View 0 Replies View RelatedI can ping across the tunnel from the pc's on either end of the tunnel, but I can't ping across the tunnel from the routers. If i ping using the source command using the LAN interface, the ping is successfull.
The reason i need this is for the remote router to be able to lookup the head office server for dns wins and ldap.
I have a strange issue where im able to get an ipsec tunnel from tha cisco 1841 to a linksys/cisco RV016 for about a minute and ping/encrypt packets across the lin for about a minute before it goes down. I tried various configuration and it all results in the tunnel coming up for a minute then going down. I'm not sure if im hitting a bug and on which decide of if im doing something wrong.
RV016 firmware 2.0.18
cisco 1841: C1841-ADVENTERPRISEK9-M), Version 12.4(24)T
my config
no crypto isakmp default policy
!
crypto isakmp policy 1
encr 3des
hash md5
authentication pre-share
group 2
[code]....
I have a setup where a spoke (cisco 1841) is sending a multicast feed to a hub (cisco 2951) via a DMVPN tunnel on the Internet. The feed arrives on interface fa0/0 of the cisco 1841 and is forwarded to the tunnel interface. It is about 160,000 kbit/s and 18 pps. This always looks the same:
cisco2951-1-hub#sh run int tu10
!
interface Tunnel10
description DMVPN TUNNEL
[Code]...
I'm trying to configure an IPSEC VPN + tunnel for multicast data. When the default gateway is set on the router (1841) it works fine but if I only set a route to the IPSEC peer via our gateway then the tunnel fails to come up. The end point is to a 3rd party. [code]
I found that if I add a static route for the tunnel destination via fa0/0, the public facing interface, the tunnel comes up..ip route 10.23.4.2 255. 255. 255. 255 FastEthernet0/0
and I can then ping the tunnel IP at the far end - 10.23.0.5.Why would that be? Is there a better way to do this without using a default route??
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.
View 3 Replies View RelatedI had a pix that had two working tunnels going to one 5510 and one 5520. Today the VPN tunnel to our 5520 stopped working but if I do sh cry isa sa both tunnels have QM_IDLE as the state. (both ends) I tried to debug crypto isakmp 255 but all I get is PEER_REAPER_TIMER and no other output on the pix side.
View 20 Replies View Relatedi successfully established site to site with 2 two ASA 5010. The problem is that traffic on not passing, This is current setup:1) Left side : only 1 private network 3) Right side : 1 private network, management network, 2 DMZ networks with public IP, On right ASA some netting is setup so servers in DMZ can be reached from private network. The goal would be that VPN client on left side can reach all resources on the right side (except management network, Just to get things going tunnel is built with only left and right private networks, but after tunnel is established i can't ping anything on other side.
View 4 Replies View RelatedI have a IPSec tunnel that is working in one direction. Below is the router config from the side that can connect to the other side perfectly. I believe the issue is with this router as while I was waiting on delivery for the ASA I had an SRP527W sitting in it's place and had exactly the same problem.On one side I have a 887VA router and the other an ASA5505.The network behind the 887VA can access the remote site perfectly, backup services are traversing the link as are web interfaces for applications. In the other direction I can ping hosts but cannot connect. What else is interesting is if from the remote site I attempt to connect to a particular device that performs a port redirect the remote site browser gets so far as being redirected to port 5000 but then hangs.
I am seeing some very generic packet drop debug notices on the 887va on the NAT-ACL access list but I think this is as it should be as it is dropping the tunnel traffic from the NAT'ing.The config for the router is here, I will post the ASA config when I get to the other site shortly but I am convinced the issues is on this device, all the crypto configurations match.I have looked at the MTU's on each side, the path MTU on both sides is 1492. The asa does say the media MTU is 1500 but I believe that is the ADSL link so shouldnt matter?I even went so far as installing CCP and testing the VPN. It says the tunnel is up. It did state a failure:A ping with data size of this VPN interface MTU size and 'Do not Fragment' bit set to the other end VPN device is failing. This may happen if there is a lesser MTU network which drops the 'Do not fragment' packets. [code]
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.
View 8 Replies View RelatedI have a RVS4000 at one location and a second RVS4000 at home. I have established an IPSec VPN tunnel between them and it is UP. I can ping the routers from each end no problem. I can ping the IPs listed in the "Local Group Setup" and the "Remote Group Setup" from both ends no problem. I can even open up a shared resource from a Win 7 machine (e.g. by typing \10.10.10.100 in start-run from a computer on my home network).
But - i can't ping anything else on one network from the other. What gives? I need to access a 10.10.10.101 machine but can't even ping it.
- both RVS4000 boxes have latest firmware (V1.3.3.5)
- home RVS4000 setup with IP 10.10.11.1
- home network has a server with IP 10.10.11.20
- other location RVS4000 setup with IP 10.10.10.1
- other location server setup with IP 10.10.10.100
Tunnel settings on home RVS4000 (the other location properly mirror these).
- Local Security Gateway Type : IP Only
- Local Security Group Type : Subnet
[code]....
I have HQ side with ASA 5520 (8.4) & Branch Side with ASA 5505 Design
VPN LAN<------->ASA5520(8.4)----->Thomson Business TG628s----->Internet<--->ADSL Modem------>ASA5505(8.2)
Now on both modems UDP 500 & TCP/UDP 4500 ports are enabled I can ping from internal LAN of HQ to internal LAN of branch but I cant ping from internal LAN of branch to internal LAN of HQ
HQ ASA 5520 Side
ASA Version 8.4(3)
host name aljoaib-fw01
[ code]....
Branch side ASA 5505
ASA Version 8.2(5)
host name GTC- DMM- FIREWALL
domain-name ALJOAIB.COM
enable password 7pgp93AEPfHtDc5N encrypted
[Code]....
Both sides have static ip address.
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.
On my ASA5520 I am trying to do a IPSEC tunnel between two sites. When I ping the protected network on the other side I get this when debugging IPSEC:
IPSEC(crypto_map_check): crypt o map man map 20 does not hole match for ACL man1
Not too sure what this means...
i have 2 RV048 and one RV016
I have established VPN gateway to gateway tunnels; all routers use functional DYNDNS
IPrange site 1 192.168.123.1-254 external adres x.y.z.w
IPrange site 2 192.168.124.1-254 external adres a.b.c.d
IPrange site 3 192.168.122.1-254 external adres e.f.g.h.i
site 1 with 192.168.123.x has two win 2008R2DC servers, running AD, DNS, DHCP, RRAS with address 192.168.123.4-5
i can ping the routers only if i add the route to it but cannot ping further (route add command)
if i dont establish the route then nothing pings
How can i use the tunnel to connect to the servers in site 1
I configured ASA5520 and RV042 for site-to-site IPSec VPN tunnel.Tunnel get connected, but no ping, no traffic between both end network.
Network:
=======
192.168.113.0/24----------192.168.113.6 -ASA--------public, static IP address------Cisco 2821--------Internet
192.168.10.0/24-----------192.168.10.1 -RV042-----public, static IP address------Cisco 2821--------Internet
ASA5520 config:
----------------------
name 192.168.10.0 VPN
!
interface GigabitEthernet0/1
nameif NET
security-level 100
ip address 192.168.113.6 255.255.255.0
[code]....
I have 2 Cisco routers , 1841 and 2811 , I need to setup site to site VPN , but i dont now some how it just does not seems to be working ,
Find attached the Configuration along with the
<----- 172.31.1.0/24----- DG:172.31.1.1>Cisco 2811<Dialer1 -----//Internet//----------Dialer1>Cisco1841---< DG:10.236.5.254-------------- 10.236.5.0/24--->
Find attached command executed on each router in the below order
1) show ver
2) Show run
3) show logging
4) show crypto ipsec sa
5) show crypto isakmp sa
Debugging enabled on routers are
1)Debug Crypto Isakmp
2) Debug Crypto Ipsec.
I have recently purchased a E4200 i have flashed it with the latest Firmware 1.0.03 and Hard Reset the Router so the Media issue was resolved i was having. After upgrading the firmware to the latest version my Nortel VPN IPSEC Client no longer will work. The tunnel is connected and it passes traffic for about 15 seconds then nothing. The connection remains connected but no traffic passes cant ping across tunnel. I have checked all the settings and VPN - IPSEC - Passthru is enabled. I have put the client in DMZ mode and tried that same thing.
View 7 Replies View Relatedi have my Cisco E4200 set up with a 6rd tunnel. the tunnel seems to work fine for the most part. i can ping ipv6.google.com and get a response.however, i cannot ping the addresses of the IPv6 Tunnel ends from within my network. If i run a ping from outside the network, i can ping the IPv6 address of the server end, however, i cannot ping the E4200's end of the tunnel. is there a specific option that needs to be set? i have allowed ping so that my IPv4 address is pingable, am i missing something for IPv6?
View 7 Replies View RelatedI've 3 Cisco 800 series routers and I needed to configure site-to-site vpn tunnel from branch2 to the main office(branch 1 VPN was already configured and working). I've managed to get the tunnel up and everything seemed OK as sh cry isa sa,sh cry session and sh cry ipsec sa didn't seem to have any problems.
Although the tunnel is up, I cannot ping PC-s on either side of the vpn tunnel.
i have a 7201 router with NPE-G2. i have a design which i have the option to send all the traffic through a GRE tunnel or a L2TPV3 tunnel.which method is more CPU consumption ?
View 1 Replies View RelatedI'm in process of purchasing a new Cisco routers for our branches that will be used primary to enable IPSec virtual tunnel interfce with "tunnel mode ipsec ipv4". does the default IOS IP Base supports this feature? or i need to purchase DATA license or SECURITY license?
View 4 Replies View RelatedI am using a Cisco RV110W (Firmware 1.2.09) in a branch and I would like to create a VPN Tunnel to another site that has a Cisco RV042 (firmware v4.2.1.02)
What would be the correct Configuration? the current configuration I am using is
in the RV042 i am using
Check Enable
Local Group Setup
Local Security Gateway Type : IP Only
IP Address : RV042 Pulbic IP address
[Code].....
Environment :linksys wrt300n v1.1 which can have ddwrt-mega. Willing to tunnel all lan's outbound traffic through an ssh tunnel.
View 2 Replies View RelatedThere are a few situations were I'd like to be able to use the locally configured account on a device but still have ACS in place.I want to complete this WITHOUT adding the locally configured account into ACS.I have tried setting the advanced option under Identity for if an account is not found to "Continue" however this causes the account to be allowed as long as a password is typed (any password, as long as its not blank).
View 2 Replies View Related