IPSEC tunnel and Routing Support protocols

Similar Questions

• PIX IPSec tunnel - IOS, routing Options

  Hello

  I have an IPSec Tunnel between a PIX firewall and a router Cisco 1721.

  Have I not all options about any routing protocol can I use?

  Are there plans to add GRE support to PIX, so that EIGRP, OSPF can be used?

  ------Naman

  Here's a URL that tells how to configure GRE over IPSEC with OSPF. http://www.Cisco.com/warp/public/707/gre_ipsec_ospf.html

• IPSec tunnel and NetFlow packets

  I have a router 1841 IPSec running with an ASA. F0/0 is the source interface. I also set up NetFlow, which must be sent through the IPSec tunnel to the parser. The acl setting the IPSec interesting traffic covers addresses, source and destination of NetFlow. But NetFlow Traffic is not captured by the tunnel. When I ping the destination router, icmp traffic is picked up and goes through the tunnel. Are there ways to force NetFlow traffic to go to the tunnel?

  Thank you.

  Y at - it a route to the destination address of netflow? I have noted problems with traffic heading towards a destination that was not in the routing table is not made down a VPN.

• Protection of IPSEC Tunnel and tunnel QOS shaping does no formatting.

  I have an implosion of the little brain as to why it won't work.

  I tried the QOS policy on tunnel interfaces and the ATM interface. No formatting occurs. Interfaces to transmit at their leisure.

  Please can someone have a better day me to tell me what I am doing wrong?

  Here is the config relevant (and standard). without the political order applied anywhere. Any help appreciated.

  ---------------------------------------------------------------------------------

  class-map correspondence-everything APPSERVEURS
  match the name of group-access TERMINALSERVERS
  class-map correspondence-any VOICE
  sip protocol game
  match Protocol rtp
  match dscp ef
  !
  !
  Policy-map QOSPOLICY
  class VOICE
  priority 100
  class APPSERVEURS
  33% of bandwidth
  class class by default
  Fair/salon-tail 16
  Policy-map of TUNNEL
  class class by default
  form average 350000
  QOSPOLICY service-policy
  !
  !
  interface Tunnel0
  bandwidth 350
  IP 172.20.58.2 255.255.255.0
  IP mtu 1420
  load-interval 30
  QoS before filing
  source of Dialer0 tunnel
  destination tunnel X.X.X.X
  ipv4 ipsec tunnel mode
  tunnel path-mtu-discovery
  Tunnel IPSECPROFILE ipsec protection profile
  !
  Tunnel1 interface
  bandwidth 350
  IP 172.21.58.2 255.255.255.0
  IP mtu 1420
  load-interval 30
  delay 58000
  QoS before filing
  source of Dialer0 tunnel
  destination tunnel Y.Y.Y.Y
  ipv4 ipsec tunnel mode
  tunnel path-mtu-discovery
  Tunnel IPSECPROFILE ipsec protection profile
  !
  !
  ATM0/0/0 interface
  no ip address
  load-interval 30
  No atm ilmi-keepalive
  !
  point-to-point interface ATM0/0/0.1
  PVC 0/38
  aal5mux encapsulation ppp Dialer
  Dialer pool-member 1
  !
  !
  interface Dialer0
  bandwidth 400
  the negotiated IP address

  ---------------------------------------------------------------------------------------------------------

  Thank you

  Paul

  Paul,

  One of the reasons could be because of the VTI overload.

  That being said I don't know which is the way to go with your QoS:

  https://Tools.Cisco.com/bugsearch/bug/CSCsz63683/?reffering_site=dumpcr

  My suggestion: give it a try with 15.2 M/T and prosecute TAC with discount people rather than VPN QoS ;-)

  M.

• IPSec tunnel on router from closure

  Is it possible to get a VPN IPSec tunnel on a router from the loopback interface? If so, how?

  Hello

  Yes it is possible. The command is:

  card crypto-address loopback

  Please make sure that the loopback interface has a public IP address that is accessible.

  http://www.Cisco.com/univercd/CC/TD/doc/product/software/ios124/124tcr/tsec_r/sec_c3ht.htm#wp1274324

  HTH,

  * Please rate if this helps,

  Kind regards

  Kamal

• IPSec tunnel and join a LAN router

  I have to tunnel MikroTik IPSec Cisco ASA.

  Cisco WAN: xxx.xxx.xxx.xxx

  Cisco LAN: 172.27.0.0/20

  MikroTik WAN: .yyy

  MikroTik LAN: 172.27.128.0/20

  This acts to Cisco configuration:

  access extensive list ip 172.27.0.0 acl_encrypt allow 255.255.240.0 172.27.128.0 255.255.240.0

  access extensive list ip 172.27.0.0 acl_no_nat_inside allow 255.255.240.0 172.27.128.0 255.255.240.0

  NAT-control
  Global 1 interface (outside)
  NAT (inside) 0-list of access acl_no_nat_inside
  NAT (inside) 1 0.0.0.0 0.0.0.0

  Crypto ipsec transform-set esp-aes-256 ts_esp_aes_256_sha, esp-sha-hmac

  card crypto cm_outside 10 correspondence address acl_encrypt
  card crypto cm_outside pfs set 10 group5
  card crypto cm_outside 10 peers set.yyy
  card crypto cm_outside 10 transform-set ts_esp_aes_256_sha
  3600 seconds, duration of life card crypto cm_outside 10 set - the security association
  card crypto cm_outside 10 set security-association life 1048576 kilobytes

  cm_outside interface card crypto outside

  crypto ISAKMP policy 10
  preshared authentication
  aes-256 encryption
  sha hash
  Group 5
  life 3600

  tunnel - group.yyy type ipsec-l2l
  tunnel - group.yyy ipsec-attributes
  pre-shared-key *.

  Tunnel works fine, when I try to ping from a PC behind Cisco to another PC behind MikroTik.

  (e.g. 172.27.1.1 to 172.27.129.1), it works fine (except the first two lost packages which is OK
  due to the delay of its ISAKMP/IPsec negotiation).

  But I need to be able to access a PC behind Cisco's MikroTik.

  If I try for example

  ping 172.27.129.1

  Cisco, all packets are lost.

  I guess that Cisco does not use its LAN interface but the WAN interface.

  What can I do to make it work?

  Not sure why you want to do.

  Yes, ASA use the IP address on the outgoing interface as source IP address. So when you ping the remote of the SAA, it will WAN IP.

  You can add the following entry in your ACL to see if it works

  access-list allowed acl_encrypt ip xxx.xxx.xxx.xxx host 172.27.129.1

  Make the changes to the ACL on the remote site as well.

  You may or may not add a NAT 0 as well. I don't know because this traffic is started from ASA itself. You can check the log to see what's happening and then make the decision.

• The IPSec VPN and routing

  Hello

  I was polishing my PSAB on since I am currently in a job where I can't touch a lot of this stuff.  By a laboratory set up a site to IPSec VPN between two routers IOS.

  For example:

  https://www.Cisco.com/en/us/products/ps9422/products_configuration_example09186a0080ba1d0a.shtml

  The routers must specify how to route to the protected network.  Although I guess they could just use a default route to 172.17.1.2 as well.

  for example IP road 10.10.10.0 255.255.255.0 172.17.1.2

  172.17.1.2 won't have the slightest clue as to how to route for 10.10.10.0

  Even in an example with a tunnel between the ASA and the router IOS ASA failed to indicate a direct route to the subnet protected from 10.20.10.0, but it must still have a default route configuration. (https://www.cisco.com/en/US/products/ps5855/products_configuration_example09186a0080a9a7a3.shtml#CLI)

  So it is basically saying, to reach the protected subnet to resolve the next hop on a device that has no idea where this subnet is anyway.  Shouldn't all the peer IP-based routing, and not on a subnet that routers between the two should have no idea they exist?

  The main hypothesis that I have here is that the protected subnets are not accessible unless the VPN tunnel is up.  Most of my experience of the VPN site-to-site is with PIX / ASA, and I've never had to specify a route towards the protected subnet (for example 172.16.228.0).  I guess he just used his default gateway that has an Internet IP belonging to the ISP.  However the ISP has no idea where is 172.16.228.0.

  Edit: I found a thread, do not report with Cisco but IPSec in general, this seems to be the question in case I don't have a lot of sense:

  http://comments.Gmane.org/Gmane.OS.OpenBSD.misc/192986

  He still does not seem logical to me.  If I have a tunnel linking the two class C networks by internet, the only routers having knowledge of these networks are the two counterparts.  Why a course should be (static, dynamic, default etc,) which seems to send traffic to a device that do not know where is the class C networks?  Although I have to take in my example with the 172.17.228.0 my ASA was not actually sends out packets to my ISP gateway with 172.17.228.0 in them.

  The purpose of the trail is * not * to send traffic to your next jump. You are right that the next hop router has no idea what to do with this package. This way is important for the local operation. The router must find the interface of output for the package. 'S done it with the road to the next-hop-router. If you remember that the road to your peer IPSec, your router must do a recursive search routing. After the outging interface is found, traffic is sent to this interface, the card encryption on this interface jumps and protects your traffic that is routed to your IPSec peer.

  --
  Don't stop once you have upgraded your network! Improve the world by lending money to low-income workers:
  http://www.Kiva.org/invitedBy/karsteni

• Register to offset or solid square tunnel and DAQ support

  Hello

  There is little doubt, but I want to clarify here.

  I have a Subvi and I use it in my main VI.  Subvi is written with state machines and have up to 6 different States. In one State, I have a comparison function that must value a value to a terminal for the purposes of comparison. This value is constant and I always change. Currently, I pass these values to the Subvi my main VI. Moreover, I do not use any kind of change to go through the tunnel square rather just solid. The Subvi is continuous on its States when it runs. My doubt is the value which I send VI is still exist at the Terminal comparison Subvi or better using shift registers. I have 6 situations even like that.

  In addition, by using the DAQ Assistant is really forbidden due to bad results. May be, OR use them to show the clients easy programming. I have a finite acquisition loop for 12 times. Too long, I don't have any problem with the help of data acquisition. But I got a problem when it is in continuous mode (especially when my mode of Highlighted code execution). I changed it to finished now. Is it possible to keep to herself as write like that for an application usable 10 years or better write with DAQmx functions.

  Thank you people.

  shjukheter wrote:

  I have to wait until the 1VI running and I need to pass the output to 2Vi.

  None of the screw that you set call 1. VI or 2.vi. If 2. VI requires a power of 1(vi), it will automatically wait up to 1. VI ended until he could start. It is dependent on the data. No required sequence.

  DBL values will be read without having changed the tunnel entrance of the while loop and then go to the tunnel entrance to the structure of the case. The value of the tunnel will not change for the duration of the subVIs. You only need a registry change if one instance changes the value and you want the changed value in the subsequence of the while loop iterations.

• Best Soho - Split Tunnel VPN router

  Hi - I'm looking for some advice for a soho router.

  Basically the main feature, I'm looking for is to run, which I think is a VPN split tunnel, so that all internal clients route default traffic out to the gateway of the ISP. However, if the traffic is destined for a list of several specific subnets (x.x.x.x/24, y.y.y.y/24 etc.), then it should establish a tunnel to an only PPTP/IPSEC host and route remote traffic for these subnets via the tunnel.   To be clear, that these subnets (x.x.x.x and y.y.y.y) is not attached to the end of the tunnel - which is a gateway device that will route them further.

  I've been watching the various VPN router offers and is not clear to me if I can do it with a RV - 042, BEFVP41 or something like the other thing SRP521W I must be able to manipulate the routing tables directly on.

  As an additional note, I have complete control over the end of SOHO - but simply an account at the end of the tunnel with (it is a service provider).  The idea is to use public services for 90% of the traffic, but if customers want to access a specific set of addresses, it will forward this specific traffic through the tunnel.

  Thanks in advance...

  On current view, do not touch the RPS with a bargepole.

  Adding access to additional subnets through a VPN tunnel is pretty standard, routing will be automatic if the VPN was established, but you must ensure that

  1. politics VPN at BOTH ENDS allows your local subnet to access these networks

  2. your subnet is not incompatible with other subnets or roads that can be used on remote networks

  3. assuming you're OK so far, remote subnets must have a route is added to the default gateway to point to your subnet via intermediate networks

  Good luck!

• Tunnels of router that support s multiple VPN IPsec AND SSL VPN

  I have a main office and an office, each with a RVL200 connected via the IPSec VPN tunnel. We grow faster than we thought and add 2 more branches. Is there a router that is similar to the RVL200 can I put in my main office in support of multiple IPSec tunnels connected to RVL200 in branches, but also keep the SSL VPN?

  It seems that the Cisco ASA 5505 will do.

• Cisco 1841 ipsec tunnel protocol down after a minute

  I have a strange problem where im manages to get a tha cisco ipsec tunnel 1841 to a RV016 linksys/cisco for about a minute and ping/encrypt the packets through the linen for about a minute before it breaks down. I tried different configuration and it all results in the tunnel for a minute then descend to come. I don't know if im hitting a bug and decide to if im doing something wrong.

  any help is appreciated paul

  RV016 firmware 2.0.18

  Cisco 1841: C1841-ADVENTERPRISEK9-M), Version 12.4 (24) T

  my config

  no default isakmp crypto policy

  !

  crypto ISAKMP policy 1

  BA 3des

  md5 hash

  preshared authentication

  Group 2

  lifetime 28800

  ISAKMP crypto key address 0.0.0.0 eaton1234 0.0.0.0

  !

  !

  Crypto ipsec transform-set esp-3des esp-sha-hmac ESSTS

  transport mode

  no default crypto ipsec transform-set

  !

  Crypto ipsec profile ipsec_profile1

  Description in the location main site to site VPN tunnel

  game of transformation-ESSTS

  PFS group2 Set

  !

  !

  !

  !

  !

  !

  !

  Tunnel1 interface

  Description of the location of the hand

  IP unnumbered Serial0/0/0

  source of tunnel Serial0/0/0

  destination 209.213.x.x tunnel

  ipv4 ipsec tunnel mode

  tunnel path-mtu-discovery

  protection of ipsec profile ipsec_profile1 tunnel

  !

  a debug output

  Apr 24 16:42:07: IPSEC (validate_proposal_request): part #1 the proposal

  Apr 24 16:42:07: IPSEC (validate_proposal_request): part #1 of the proposal

  (Eng. msg key.) Local INCOMING = 209.213.xx.46, distance = 209.213.xx.164,.

  local_proxy = 10.20.86.0/255.255.255.0/0/0 (type = 4),

  remote_proxy = 10.0.0.0/255.255.255.0/0/0 (type = 4),

  Protocol = ESP, transform = NONE (Tunnel),

  lifedur = 0 and 0kb in

  SPI = 0 x 0 (0), id_conn = 0, keysize = 0, flags = 0 x 0

  Apr 24 16:42:07: mapdb Crypto: proxy_match

  ADR SRC: 10.20.86.0

  ADR DST: 10.0.0.0

  Protocol: 0

  SRC port: 0

  DST port: 0

  Apr 24 16:42:07: IPSEC (key_engine): had an event of the queue with 1 KMI message (s)

  Apr 24 16:42:07: mapdb Crypto: proxy_match

  ADR SRC: 10.20.86.0

  ADR DST: 10.0.0.0

  Protocol: 0

  SRC port: 0

  DST port: 0

  Apr 24 16:42:07: IPSEC (policy_db_add_ident): src dest 10.0.0.0, 10.20.86.0, dest_port

  0

  Apr 24 16:42:07: IPSEC (create_sa): its created.

  (his) sa_dest = 209.213.xx.46, sa_proto = 50,.

  sa_spi = 0x4CF51011 (1291128849).

  sa_trans = sa_conn_id of hmac-sha-esp, esp-3des = 2045

  sa_lifetime(k/sec) = (4463729/3600)

  Apr 24 16:42:07: IPSEC (create_sa): its created.

  (his) sa_dest = 209.213.xx.164, sa_proto = 50,.

  sa_spi = 0x1EB77DAF (515341743).

  sa_trans = sa_conn_id of hmac-sha-esp, esp-3des = 2046

  sa_lifetime(k/sec) = (4463729/3600)

  Apr 24 16:42:07: % LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel1, sta changed

  you to

  Apr 24 16:42:07: IPSEC (key_engine): had an event of the queue with 1 KMI message (s)

  Apr 24 16:42:07: IPSEC (key_engine_enable_outbound): rec would notify of ISAKMP

  Apr 24 16:42:07: IPSEC (key_engine_enable_outbound): select SA with spinnaker 515341743/50

  Apr 24 16:42:07: IPSEC (update_current_outbound_sa): update peer 209.213.xx.164 curre

  NT his outgoing to SPI 1EB77DAF

  Apr 24 16:42:12: IPSEC (key_engine): request timer shot: count = 1,.

  local (identity) = 209.213.xx.46, distance = 209.213.xx.164,

  local_proxy = 0.0.0.0/0.0.0.0/0/0 (type = 4),

  remote_proxy = 0.0.0.0/0.0.0.0/0/0 (type = 4)

  Apr 24 16:42:12: IPSEC (sa_request):,.

  (Eng. msg key.) Local OUTGOING = 209.213.xx.46, distance = 209.213.xx.164,.

  local_proxy = 0.0.0.0/0.0.0.0/0/0 (type = 4),

  remote_proxy = 0.0.0.0/0.0.0.0/0/0 (type = 4),

  Protocol = ESP, transform = esp-3des esp-sha-hmac (Tunnel),

  lifedur = 3600 s and KB 4608000,

  SPI = 0 x 0 (0), id_conn = 0, keysize = 0, flags = 0 x 0

  Apr 24 16:42:42: IPSEC (key_engine): request timer shot: count = 2,.

  local (identity) = 209.213.xx.46, distance = 209.213.xx.164,

  local_proxy = 0.0.0.0/0.0.0.0/0/0 (type = 4),

  remote_proxy = 0.0.0.0/0.0.0.0/0/0 (type = 4)

  Apr 24 16:42:42: % LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel1, sta changed

  you all the downu

  All possible debugging has been disabled

  I would try to set up a VPN Interface virtual Tunnel on the IOS router base and the value of defined transformation in tunnel mode no transport.

  In history, I have had several issues with VPN between a router IOS and the series RV.

• Decision on DMVPN and L2L simple IPsec tunnels

  I have a project where I need to make a decision on which solution to implement... environment is as follows...

  • 4 branches.
  • Each branch has 2 subnets; one for DATA and another for VOICE
  • 2 ISPS in each (an Internet access provider and a provider of MPLS)
  • Branch #1 isn't necessarily the HUB office that all database servers and files are there are
  • Branch #2 is actually where the phone equipment
  • Other 2 branches are just branches speaks (may not need never DATA interconnectivy, but they do need interconnection VOICE when they call since we spoke directly to the other)
  • MPLS is currently used for telephone traffic.
  • ISP provider link is used for site to site tunnels that traverse the internet, and it is the primary path for DATA. Means that all branch DATA subnets use the tunnels from site to site as main road to join the #1 branch where all files and databases are located.
  • I'd like to have redundancy in case the network MPLS down for all traffic VOICE switch to L2L tunnels.

  My #1 Option

  Because it isn't really a star to the need, I don't really know if I want to apply DMVPN, although I read great things about it. In addition, another reason, I would have perhaps against DMVPN is the 'delay' involved, at least during initialization, communications having spoke-to-spoke. There is always a broken package when a department wants to initiate communication with one another.

  My #2 Option

  My other choice is just deploy L2L IPSec tunnels between all 4 branches. It's certainly much easier to install than DMVPN although DMVPN can without routing protocols that I think I'll need. But with these Plains L2L IPSec tunnels, I can also add the GRE tunnels and the routing of traffic protocols it as well as all multicast traffic. In addition, I can easily install simple IP SLA that will keep all tunnels upwards forever.

  Can someone please help to choose one over the other is? or if I'm just okay with the realization of the #2 option

  Thanks in advance

  Hi ciscobigcat

  Yes, OSPF will send periodic packets 'Hello' and they will maintain the tunnels at all times.

  The numbers that you see (143 and 1001) are the "cost" of the track, so OSPF (Simplified) will calculate what different paths there are to a destination and assign each of them a 'cost' (by assigning a cost to each segment of the path, for example GigabitEthernet is "lower cost" Fastethernet and then adding the costs of all segments).

  Then it will take the path to the lowest cost (143 in your case, in normal operation) and insert this in the routing table.

  So since traffic is already going the right way, I don't know if you still need any tweaking? Personally, I would not add a second routing protocol because, generally, makes things more complicated.

  QoS, it is important to use "prior qos rank".

  See for example

  http://www.Cisco.com/en/us/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND/IPSecQoS.html

  http://www.Cisco.com/en/us/Tech/tk543/tk757/technologies_tech_note09186a00800b3d15.shtml

  HTH

  Herbert

• DMVPN Tunnel and EIGRP routing problem

  I have redundant paths to a remote 2811 router on my network of sites.  The first links is a T1 frame relay connection that has been in place for years, and the new link is on a 54 Mbps fixed wireless that was recently created.

  I'm under EIGRP to my process of routing protocol 100 for the two links.

  I installed a DMVPN Tunnel between the remote 2811 and no. 2851 router on my host site.  The tunnel interface shows to the top and to the top of both sides and I can ping the IP remote tunnel of my networks side host.

  However my eigrp routes are not spread over this new tunnel link and if I run a command show ip eigrp neighbor on each router I show only the neighbor for the frame relay link and not the new wireless link.

  What I'm missing here?

  A tunnel0 to see the shows the following:

  Tunnel0 is up, line protocol is up
  Material is Tunnel
  The Internet address is 10.x.x.x/24
  MTU 1514 bytes, BW 54000 Kbps, DLY 10000 usec,
  reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation TUNNEL, loopback not set
  KeepAlive not set
  Tunnel source (FastEthernet0/1), destination 172.x.x.x 10.x.x.x
  Tunnel/GRE/IP transport protocol
  Key 0x186A0, sequencing of the people with reduced mobility
  Disabled packages parity check
  TTL 255 tunnel
  Quick tunneling enabled
  Tunnel of transmission bandwidth 8000 (Kbps)
  Tunnel to receive 8000 (Kbps) bandwidth
  Tunnel of protection through IPSec (profile "CiscoCP_Profile1")
  Last entry of 00:00:01, exit ever, blocking of output never
  Final cleaning of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/dumps); Total output drops: 947
  Strategy of queues: fifo
  Output queue: 0/0 (size/max)
  5 minute input rate 0 bps, 0 packets/s
  5 minute output rate 0 bps, 0 packets/s
  packages of 880, 63000 bytes, 0 no buffer entry
  Received 0 broadcasts, 0 Runts, 0 Giants 0 shifters
  errors entry 0, 0 CRC, overgrown plot of 0, 0, 0 ignored, 0 abort
  output of 910 packages, 81315 bytes, 0 underruns
  0 output errors, 0 collisions, 0 resets interface
  unknown protocol 0 drops
  output buffer, the output buffers 0 permuted 0 failures

  Please go ahead and add a static route on the hub, so it goes through the wireless link and let me know if everything works correctly.

  Federico.

• IPSec tunnel between a client connection mobility and WRV200

  Someone has set up an IPSec tunnel between a client connection mobility and WRV200? I can't get the right configuration.

  Agitation, these products are treated by the Cisco Small Business support community. Please refer to the URL: https://supportforums.cisco.com/community/netpro/small-business

• IPSec Tunnel between Cisco 2801 and Netscren 50 with NAT and static

  Hello

  My problem isn't really the IPSec connection between two devices (it is already done...) But my problem is that I have a mail server on the site of Cisco, who have a static NAT from inside to outside. Due to the static NAT, I do not see the server in the VPN tunnel. I found a document that almost describes the problem:

  "Configuration of a router IPSEC Tunnel private-to-private network with NAT and static" (Document ID 14144)

  NAT takes place before the encryption verification!

  In this document, the solution is 'routing policy' using the loopback interface. But, how can I handle this with the Netscreen firewall. Someone has an idea?

  Thanks for any help

  Best regards

  Heiko

  Hello

  Try to change your static NAT with static NAT based policy.

  That is to say the static NAT should not be applicable for VPN traffic

  permissible static route map 1

  corresponds to the IP 104

  access-list 104 refuse host ip 10.1.110.10 10.1.0.0 255.255.0.0

  access-list 104 allow the host ip 10.1.110.10 all

  IP nat inside source static 10.1.110.10 81.222.33.90 map of static route

  HTH

  Kind regards

  GE.