I am now having trouble to buil a vpn ipsec on an adsl link, my architecture is as follow:
[code]...
whith this output, debbuging seems very difficult. see attached my configuration on router 1841
I am trying to build an IPSec between two 881 routers in my lab. [code]
View 1 Replies View Relatedi have 6 sites using tandberg visioconference system, each site have a cisco router 1841 configured with ipsec vpn, i have a 4 conference a week and my bandwidth is 2 meg, and when people are working we have a lot of problems and cut in our visio conference.
I have a big problem, i want to make a high level QOS priority to my TANDBERG visio conference system between my sites, the issues is that there is an IPSEC VPN in my cisco routers between those sites and as i know if the traffic is crypted we can not separate the packets or give higher priority to packets over anothers.
can i mark traffic in the lan interface and and make a high priority befors the packets go through the ipsec tunnel?
I want to establish VPN with GRE over IPsec. As ASA can't end GRE tunnels, I should pass it through inside to another 1841 router in datacentar network. Since datacentar is connected to internet via two wan links (separate ISPs) is it possible to establish two gre simultanous sessions between 1841 at branch office and 1841 at datacentar, one session per wan link at datacentar? That way, I need 8 gre separate sessions (tunnels) at datacentar 1841 router. Is it supported?Is GRE passthrough works like regular port forwarding or it is something that ASA handles with some special commands?
View 1 Replies View RelatedD-Link released firmware version 1.05 build 08, located here: Firmware v1.05b08
View 2 Replies View RelatedI need support regarding IPSEC - VPN in 1841 Router? I had purchsed 1841 Router and i dont know how to check, whether supported for VPN or not?
View 4 Replies View RelatedWe have set up a site to site IPSEC VPN between a Pix 515E running 8.0 (4) and an 1841 using static IP addresses at both ends. We used CCP on the router and ASDM on the pix to build the initial tunnels. Now the site with the router is changing to a Dynamic IP address from the ISP so we have set up Dynamic DNS to update the dynamic IP address.
The problem we have is that ASDM will not allow us to set a domain as the peer address, it will only accept an IP address. We think the solution will be to remove the static Crypto Map and replace with a Dynamic Crypto map on the Pix side. Our questions are simply; is this the best solution? can we edit the original static list or is it better to delete and make a new dynamic crypto map? Is there a short cut to change the config in command line? This is a live network so just want to check before we make changes on live kit.
I have a data center with virtual desktops and other shared infrastructure serving remote sites, some of which are connected to the data center with GRE over IPsec.
IP address management including DHCP is centralized in my architecture, but I simply cannot figure out how to relay DHCP requests through GRE over IPsec to my DHCP server cluster. I am working with Cisco 800 series VPN peers, and the VPNs are terminated either on a 1841 or a Juniper SRX. Everything else is just fine and dandy, but DHCP is not forwarded across the GRE tunnel.
As a workaround I am forced to use local DHCP pools on the VPN peers, which is extra work from a management point of view, and also precludes static IP address assignment where a local DHCP pool is in a VRF. My LAN devices are mostly thin clients, so I don't care if DHCP stops working when the WAN link fails. As such local pools have no upsides, they are only a tremendous hassle.
My config is very basic, public WAN in global routing table and WAN + GRE tunnel in a VRF. NAT is not used. Here are the DHCP-related configs I have tried:ip helper-address on the LAN gateway, both with and without ip forward-protocol udp bootpcip dhcp pool with relay options configured
In every case, I can see the UDP broadcasts hit the LAN gateway, but relayed packets never arrive at the other GRE tunnel endpoint let alone the DHCP server.
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 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 RelatedNetwork Setup
===========
2 Site to Site VPN tunnels has been established, it is a hub and spoke topology. The hub is ASA5520 and the 2 spoke are a 1841 and 1801 router. The tunnel is able to pass traffic, it's a full tunnel VPN.The tunnel randomly disconnect for no reason. When I check the logs I can see some errors :
%CRYPTO-4-RECVD_PKT_INV_SPI: decaps: rec'd IPSEC packet has invalid spi for destaddr=x.x.x.x, prot=50, spi=0x5F822579(1602364793), srcaddr=y.y.y.y
%CRYPTO-4-IKMP_NO_SA: IKE message from y.y.y.y has no SA and is not an initialization offer
The actual address have been replace by x.x.x.x and y.y.y.y. I frequently have to peform clear crypto isakmp on the spoke routers to revive the VPN tunnels. Is there a way the tunnel can be re-establish again without manual intervention?This keep happening on a random basis and I have living with it for years. I have looked at cisco website troubleshooting tips and but no luck in finding out how to resolve it.
Below is my config on one of the spoke router:
==================================
Cisco IOS Software, C180X Software (C180X-ADVIPSERVICESK9-M), Version 12.4(24)T3, RELEASE SOFTWARE (fc2)
crypto isakmp policy 10encr 3deshash md5authentication pre-sharegroup 2crypto isakmp key @@@@@@ address y.y.y.ycrypto isakmp invalid-spi-recoverycrypto isakmp keepalive 30 periodiccrypto isakmp nat keepalive 20!!crypto ipsec transform-set tset1 esp-3des esp-md5-hmaccrypto ipsec df-bit clear!crypto map ipsecvpn 10 ipsec-isakmp
set peer y.y.y.yset transform-set tset1match address vpn@spoke!archivelog config hidekeys!!!!!interface FastEthernet0ip address x.x.x.x 255.255.255.248ip nat outsideip virtual-reassemblyduplex autospeed autocrypto map ipsecvpn!interface FastEthernet1!interface FastEthernet2!interface FastEthernet3!interface FastEthernet4!interface FastEthernet5!interface
[code]....
I have 3 sites. Each site has a Cisco 1841 as its WAN router with a 10Mb direct internet access circuit connected to Fa0/0. The sites are then connected to each other via site-to-site IPSEC VPN. (The LAN switches in use at each site are Cisco 3750 series) [code]
Now, Site A has already been set-up with VoIP telephony. The plan is to extend this to the other 2 offices.Auto QoS has been set-up on the switches and data and voice VLANs created in the same way for each office.
how should/do we extend the QoS for the voice over the WAN to ensure voice quality remains for site to site calls. And what special considerations do we have to make for it being IPSEC VPN connectivity between the sites? The actual IP telephony system itself is being set-up by a 3rd party and not a lot of information on their requirements has been forthcoming so far – essentially all we have really been told is that they would like us to “reserve” a certain amount of bandwidth for the voice traffic between each site.
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]....
Any good vpn config for a router to allow vpn connections from Android phones using L2TP-IPSEC? Router is an 1841 running most current IOS ver 15.1.
View 1 Replies View RelatedRegion : Argentina
Model : TL-WR1043ND
Hardware Version : V1
Firmware Version :
ISP :
Region : Romania
Model : TL-WR1043ND
Hardware Version : V1
Firmware Version : 3.13.4 Build 110429 Rel.3
ISP : Romania Data Systems RCS-RDS
Proud owner of TL-Wr1043ND, great piece of technology and very affordable.
Question is: in the Administration GUI, is there a way to set it up so it displays PC-Name instead of MAC address in sections such as MAC Filter, Statistics, Logs etc?
Every time I check stuff I need to compare MAC address with PC name in order to find out who's who; so it would be nice to see directly PC Name.
I am exploring the possibility of having Cisco 1841's (or higher) at multiple sites. Each router will support 2 x ADSL connections (HWIC-1ADSL cards). My plan is to set up a DMVPN Full Mesh Tunnel on the first ADSL interface on each router and have RIP route these subnets, this will be for my Voice traffic only.
Further more I would like to set up a second IPSEC VPN tunnel between the head site and all other sites (the sites do not require direct communication for data purposes). This will route via static/weighted routes.
Any similar set up or sample configurations?
whether or not you can also run parallel DMVPN full mesh tunnels on a Cisco 1841 as this would be the other option.
the only restrictions are that the ADSL links cannot be upgraded to SHDSL etc.
We have a 10 MB Internet Link coming from our ISP through there MUX.The link is connected to our Router 1841.Cisco IOS Software, 1841 Software (C1841-IPBASE-M), Version 12.4(3i), RELEASE SOFTWARE (fc2)From past few weeks we are facing link speed issues. It gives not more then 1-2 MB.The ISP is telling there is no Problem in there network. We have kept Default Routing pointing towards there IP.We want to know whether our router will support 10MB Internet Link or Not.
View 9 Replies View RelatedIt is required to monitor newly placed WAN link performance . How can I configure my cisco 1841 router to obtain the following information.
1) Errors
2) Jitter
is there any known issue in configuring multilink ppp using an old WIC-1T and a newer HWIC-1T on the same Cisco 1841 router ?
View 2 Replies View RelatedI am having some trouble configuring dual NAT on a Cisco 1841.
The 1841 has three interfaces.
Fa0/0 - LAN
Fa0/1- Different private network
Fa0/1/0 - Connection to DSL modem
NAT overloading is configured on Fa0/1 and we have traffic that must be router there. We would like to have all internet access go through the DSL modem. Currently internet access is obtained through fa0/1 but is not ideal. I have floating static routes configured if the DSL link goes down. (Which is currently unplugged) I do not have physical access to the router at this moment. We would like to keep the config a simple as possible. It seems like route-maps may be one of our only options.
We want to terminate new 10M link via Ethernet interface on Cisco 1841 router. We have free Gig port on the router. We also have HWIC-FE module inserted in the router. However, our implementation team said that Cisco 1841 doesn't support 10M link. It is not designed to cater to such high Bandwidth.
View 14 Replies View RelatedI am trying to get a L2TP/IPSEC VPN going on one of my servers behind the DIR655 router I have used Port Forwarding and Virtual Server and neithere seem to allow these ports to be open in either situation a port scan shows the ports closed..My ISP (Comcast) does not block these ports?
View 14 Replies View RelatedOn one side of IPsec tunnel is ASA 5505 and on other side of IPsec is C1841 sec K9. On ASA side I have optical link which is error free and on other side of IP sec I have wireless point-to-point link which sometimes have error on wireless part.
When error occurs on radio link, IPsec tunnel stop forwarding traffic. When I do show crypto isakmp sa on C1841 I see that IPsec is created, but traffic is not forwarding. Only clear crypto sa comand on C1841 works for me to rebuilt the tunnel.
Any similar issue with IPsec on error link between router and ASA and how to solve it?
I have an old pentium 3 pc that has been given to me and would like to know if it would be possible to utilize as a nas for streaming films photos and music.i am not sure of the exact specs but they are as follows:-pentium 3 celeron 466 mhz processor(coppermine)i was planning on using an external 1 tb hard drive as storage and investing in some extra ram.the board only supports 512 mb of sd ram max.also i am going to have to install a add in usb 2.0 board as only usb is supported natively.
View 3 Replies View RelatedI'm wanting to make use of an old PC here that has Windows Server 2008 on it. i basically just want to use it as a backup machine. i have 1 PC, 1 Mac and an iPod Touch that'll be accessing it. what do i need to do to set it up? is there a guide anywhere? how is it different to setting up a NAS using FreeNAS?
View 3 Replies View RelatedHere is my build that i would like to make and i basically need an adapter that could be compatible. This is my router: Netgear N600 Wireless Dual band router [URL] PCPartPicker part list / Price breakdown by merchant / Benchmarks
CPU: AMD Phenom II X4 965 Black 3.4GHz Quad-Core Processor ($89.99 @ Newegg)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($32.30 @ NCIX US)
Motherboard: ASRock 970 Extreme3 ATX AM3+ Motherboard ($89.98 @ Newegg)
Memory: Patriot Gamer 2 Series 8GB (2 x 4GB) DDR3-1600 Memory ($33.99 @ Newegg)
Storage: Western Digital Caviar Blue 500GB 3.5" 7200RPM Internal Hard Drive ($62.99 @ SuperBiiz)
Video Card: XFX Radeon HD 6850 1GB Video Card ($137.55 @ Newegg)
Case: Zalman Z9 Plus ATX Mid Tower Case ($44.99 @ Newegg)
Power Supply: OCZ 600W ATX12V / EPS12V Power Supply ($39.25 @ NCIX US)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($14.98 @ Outlet PC)
Mouse: Razer DeathAdder Wired Optical Mouse ($46.48 @ Amazon)
Other: Linux Ubuntu 12.04
Other: Link Depot Model HDMI-2-HDMI 6 ft. HDMI TO HDMI A/V Cable - OEM ($3.00)
Total: $595.50
(Prices include shipping and discounts when available.)
(Generated by PCPartPicker 2012-09-04 21:24 EDT-0400)
I wonder if I can build a NTP Stratum 0 device using a GPS and a Cisco router.Preferred would be a CISCO819 as it has a build in GPS, alternative a CISCO2901 + EHWIC-3G-HSPA+7.
View 1 Replies View RelatedAny configuration example to build a vpc b/w 5ks and 7ks? i have total 4 links between them . If not, I am assuming to have the following config for the port-channels:- (Provided the vpc domain is configured).
N5k1 and 2:
int eth1/10-11
channel-group 10 mode active
switchport mode trunk
int po10
switchport mode trunk
switchport trunk allowed vlan a-d
[code]....
So, its basically vpc 10 that has 4 physical links b/w the vpc domain of 7ks and vpc domain of 5ks.
I have a old version on my CSC SSM module 6.0, I want to upgrade to the last version.I never use the CSC SSM module, so first i must activate it using the activation key right ?
From my understanding I need to install first the release csc6.1-b1519, i have tryed to find it on cisco software center, but it seems unavaiable. How upgrade my CSC SSM module?At last when I will upgrade the CSC SSM, the activation key remain vaild? (I have also the plus license.)
I recently purchased a build computer. Now I can not connect to the internet. It is not reconigizing the connection.
View 2 Replies View Relatedhave to build a solution for a network of around 150 users from the same building with about 50 users per floor. They are all having an workstation with windows 7 prof (about 75%), windows XP home edition (about 20%) and windows xp prof (5%). They are working in Autocad and I need a server on which I have to put windows 2008 server with AD and will have a role as fileserver.I need to know what are suppose to be the minimum hardware requirements for this server. Having not too much IT experience I need to know if the users that have windoiws xp home edition need to change their OS.
View 3 Replies View RelatedRegion : Others
Model : TD-W8950ND
Hardware Version : V1
Firmware Version : 1.3.1 build 120406 Rel.32903n
ISP : PTCL
I am trying to establish IPSec VPN Tunnel between Linsys RV082 and TP-Link TD-W8950ND but failed.