IPSEC VPN from Site to Site - NAT problem with address management
Hi all
I have two Cisco ASA 5505 performing of IPSEC Site to Site VPN. All traffic inside each firewall through the VPN tunnel and I have full connectivity. From site A, I can connect to the inside address of the ASA at the site B and launch of the ASDM or SSH, etc.
The problem I have is when I'm logged on the ASA site B management traffic is given the external address. I created this as interesting traffic to get it to go through the VPN but I need to use the inside address of ASA B. The following is possible:
- If I can make the ASA Site B to use inside interface as its address management (I already have management access to the inside Interface)
- I have NAT can address external interfaces to Site B before moving through the VPN tunnel management traffic so that it appears to come from Site B inside the address
- I can NAT VPN traffic as it appears in the Site A for management traffic to Site B on the right address.
The problem is that my PRACTICE Please also come from this address and I need the application before being on an internal address to even if my CA.
Thanks for any help.
Ian
Thanks, I understand what you are trying to achieve now.
However, I think that I don't have good news for you. Unfortunately PEIE request can be initiated of the SAA within the interface, as there is no option to start the query from the inside interface. With other features of management such as AAA, logging, you have an option to specify what ASA desired originally to demand from interface, but CEP doesn't have this option.
Here's how you can configure under the trustpoint crypto, but unfortunately by specifying the interface doesn't not part of option:
http://www.Cisco.com/en/us/docs/security/ASA/asa84/command/reference/C5.html#wp2262210
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SSH 10.0.0.0 255.0.0.0 inside
SSH 10.2.0.0 255.255.0.0 inside
SSH 10.1.0.0 255.255.0.0 inside
SSH timeout 5
SSH group dh-Group1-sha1 key exchange
Console timeout 0
management of 192.168.1.2 - dhcpd address 192.168.1.254
enable dhcpd management
!
a basic threat threat detection
statistical threat detection port
Statistical threat detection Protocol
Statistics-list of access threat detection
a statistical threat detection tcp-interception rate-interval 30 burst-400-rate average rate 200
internal GroupPolicy_185.52.118.67 group strategy
attributes of Group Policy GroupPolicy_185.52.118.67
Ikev1 VPN-tunnel-Protocol
internal GroupPolicy_196.219.202.197 group strategy
attributes of Group Policy GroupPolicy_196.219.202.197
Ikev1 VPN-tunnel-Protocol
internal kecdr group policy
attributes of the strategy of group kecdr
value of server DNS 8.8.8.8
Ikev1 VPN-tunnel-Protocol
internal KECCISCO group policy
KECCISCO group policy attributes
value of server DNS 8.8.8.8
Ikev1 VPN-tunnel-Protocol
internal KECVPN group policy
KECVPN group policy attributes
value of server DNS 8.8.8.8
Ikev1 VPN-tunnel-Protocol
Split-tunnel-policy tunnelspecified
username, password admin eY/fQXw7Ure8Qrz7 encrypted privilege 15
cisco 3USUcOPFUiMCO4Jk encrypted password username
username privilege 15 encrypted password 3ofqMXhysxFRHhoQ keccisco
type tunnel-group kecdr remote access
tunnel-group kecdr General-attributes
address kecdr pool
Group Policy - by default-kecdr
kecdr group of tunnel ipsec-attributes
IKEv1 pre-shared-key *.
type tunnel-group KECVPN remote access
attributes global-tunnel-group KECVPN
address kecdr pool
Group Policy - by default-KECVPN
IPSec-attributes tunnel-group KECVPN
IKEv1 pre-shared-key *.
type tunnel-group KECCISCO remote access
attributes global-tunnel-group KECCISCO
address KECVPN pool
Group Policy - by default-KECCISCO
IPSec-attributes tunnel-group KECCISCO
IKEv1 pre-shared-key *.
tunnel-group 196.219.202.197 type ipsec-l2l
tunnel-group 196.219.202.197 General-attributes
Group - default policy - GroupPolicy_196.219.202.197
IPSec-attributes tunnel-group 196.219.202.197
IKEv1 pre-shared-key *.
remote control-IKEv2 pre-shared-key authentication *.
pre-shared-key authentication local IKEv2 *.
tunnel-group 185.52.118.67 type ipsec-l2l
tunnel-group 185.52.118.67 General-attributes
Group - default policy - GroupPolicy_185.52.118.67
IPSec-attributes tunnel-group 185.52.118.67
IKEv1 pre-shared-key *.
remote control-IKEv2 pre-shared-key authentication *.
pre-shared-key authentication local IKEv2 *.
!
class-map inspection_default
match default-inspection-traffic
!
!
type of policy-card inspect dns preset_dns_map
parameters
maximum message length automatic of customer
message-length maximum 512
Policy-map global_policy
class inspection_default
inspect the preset_dns_map dns
inspect the ftp
inspect h323 h225
inspect the h323 ras
inspect the rsh
inspect the rtsp
inspect esmtp
inspect sqlnet
inspect the skinny
inspect sunrpc
inspect xdmcp
inspect the sip
inspect the netbios
inspect the tftp
Review the ip options
!
global service-policy global_policy
context of prompt hostname
anonymous reporting remote call
HPM topN enable
Cryptochecksum:8156993fef96da73dedfaacd7a14e767
: endMy local IP address: 10.2.X.X
My remote IP address: 10.3.X.X
Can anyone support me for the error
Hello
Your self after dynamic PAT takes the static NAT...
NAT source auto after (indoor, outdoor) dynamic one interface
You must reconfigure you NAT or PAT rule defined in your firewall.
no nat source auto after (indoor, outdoor) dynamic one interface
network local-lan-pat1 object
10.2.0.0 subnet 255.255.255.0
NAT dynamic interface (indoor, outdoor)
!
network local-lan-pat2 object
10.60.1.0 subnet 255.255.255.0
NAT dynamic interface (indoor, outdoor)
!
no nat source (indoor, outdoor) public static DM_INLINE_NETWORK_1 DM_INLINE_NETWORK_1 NETWORK_OBJ_10.3.0.0 NETWORK_OBJ_10.3.0.0 non-proxy-arp-search of route static destination
!outside_cryptomap to access extended list ip 10.2.0.0 allow 255.255.255.0 host 10.3.0.0 255.255.255.0
No list of extended outside_cryptomap access not allowed host ip DM_INLINE_NETWORK_1 10.3.0.0 object-group
!
We hope that you do this between subnets... not for the host at the other end.
Concerning
Knockaert
-
problem with Ezvpn and VPN from Site to Site
Hello
I want to set Ezvpn and VPN Site to another but the problem is that the EasyVpn that would only work at the Site to the Site does not at all
I have set up 1 card for two VPN with different tagged crypto
I had execlude the traffice to NOT be natted to, and when I remove the Ezvpn site to another work well
crypto ISAKMP policy 100
BA aes
md5 hash
preshared authentication
Group 2
!
crypto ISAKMP policy 10000
BA aes 256
preshared authentication
Group 5
key address 123456 crypto isakmp (deleted)ISAKMP crypto client configuration group easyvpn
easyvpn key
domain ezvpn
pool easyvpn
ACL easyvpn
Save-password
Split-dns cme
MAX User 9
netmask 255.255.255.0
!Crypto ipsec transform-set esp - aes 256 esp-sha-hmac vpn
Crypto-map dynamic easyvpn 10
Set transform-set dmvpn
market arriere-route
!
!
address-card crypto easyvpn local Dialer1
card crypto client easyvpn of authentication list easyvpn
card crypto isakmp authorization list easyvpn easyvpn
client configuration address card crypto easyvpn answer
easyvpn 100 card crypto ipsec-isakmp dynamic easyvpn
easyvpn 1000 ipsec-isakmp crypto map
defined by the peers (deleted)
Set transform-set vpn
game site addressinterface Dialer1
the negotiated IP address
IP mtu 1492
NAT outside IP
IP virtual-reassembly
encapsulation ppp
Dialer pool 1
PPP authentication chap callin pap
PPP chap hostname
PPP chap password
PPP pap sent-name to user
easyVPN card cryptoDSL_ACCESSLIST extended IP access list
deny ip 100.0.0.0 0.0.0.255 101.1.1.0 0.0.0.255
deny ip 100.0.0.0 0.0.0.255 70.0.0.0 0.0.0.255
IP 100.0.0.0 allow 0.0.0.255 any
refuse an entire ip
easyvpn extended IP access list
IP 100.0.0.0 allow 0.0.0.255 70.0.0.0 0.0.0.255
IP extended site access list
IP 100.0.0.0 allow 0.0.0.255 101.1.1.0 0.0.0.255Best regards
The sequence number of card crypto for the static mapping crypto (site to site vpn) should be higher (ie: sequence number must be lower) than the ezvpn (map dynamic crypto).
In your case, you must configure as follows:
map easyvpn 10 ipsec-isakmp crypto
defined by the peers (deleted)
Set transform-set vpn
game site addressmap easyvpn 150 - ipsec-isakmp crypto dynamic easyvpn
Hope that solves this problem.
-
Site to Site VPN using policy based or VPN type road works very well in NSA 2600 with SonicOS Enhanced 6.2.0.0 - 20n. However, in order to correct the poodle attacks on SSLv3, we improve our SonicOS to 6.2.0.1 - 24n and this make the VPN does not. We tried SonicOS 6.2.2.0 - 7n with the same result. However, the VPN works remotely locally, but not the reverse, i.e. one meaning outside of the local network. Here are the details of the VPN deployment:
Distance: NetScreen SSG-5 or GSU - 320 M
Local: SonicWall NSA-2600
Policy type: Tunnel Interface
Auth. method: IKE using preshared Secret
IKE Phase 1 proposal: Main Mode, group 2, 3DES, SHA1
Proposal of IPSec Phase 2: ESP 3DES SHA1
Please advice if it is linked to the SSLv3 disabled on Ipsec or any setting that we can make the VPN works on SonicOS after 6.2.0.1, again thank you!
After reading the Release Notes for Early Release SonicOS 6.2.2.0 - 12n NSA-2600, we have solved the problem easily. Here's the important part:
IMPORTANT: SonicOS 6.2.2.0 includes a design change added in recent versions for the treatment of the traffic via the Interfaces of the VPN Tunnel. By default, NAT policies are now applied to this traffic. In SonicOS 6.2.0.0 and SonicOS 6.1.1.9 and 6.1.1.x earlier, traffic on the Interfaces of the VPN Tunnel was exempt from policies NAT. Transition one of these earlier versions to 6.2.2.0 may require configuration changes.
In fact, the truth is since 6.2.0.1, they already have policies NAT for the Interfaces of the VPN Tunnel. So the solution, regardless of usage 6.2.0.1 or 6.2.2.0, is just to write your policy NAT there is source and services NAT to network strategy involved VPN Tunnel Interface, that will be fine. To be simple, just
Original of the CBC Definition of the CBC Original dest Definition of dest SVC Original Definition of SVC Any Source language Remote VPN network Source language Any Source language -
VPN from Site to Site and easy 871W
I have a problem with the configuration of Site to site and easy both together on the same router 871W
Something is working, but not everything.
x.x.x.x - address IP WAN
a.a.a.a - gw for WAN IP address
z.z.z.z - IP address of the VPN Site-to Site
192.168.201.0/25 - LAN
192.168.200.0/24 - easy VPN address
192.168.151.0/24 - Site-Site LANSite-to-site work properly, everythings fine, but no easy VPN.
Configuration of Cisco VPN Client:
Home - x.x.x.x, group auth name - RemoteGroup, pass *.
user test, pass *.I have a successful connection of Cisco VPN Client (I see a closed lock - connected status)
Connection gave me the address 192.168.200.5.
But I can't see LAN or LAN from Site to Site.
And I don't have any idea what may be wrong.
Finalny config:
Quote: Current configuration: 8860 bytes
!
version 12.4
no service button
horodateurs service debug datetime msec
Log service timestamps datetime msec
encryption password service
sequence numbers service
!
hostname moj-waw-rtr
!
boot-start-marker
boot-end-marker
!
logging buffered debugging 52000
Select the secret *.
!
AAA new-model
!
!
AAA authentication login default local
AAA authentication login local remoteusers
AAA authorization exec default local
AAA authorization RemoteGroup LAN
!
AAA - the id of the joint session
!
resources policy
!
IP subnet zero
IP cef
!
!
no ip domain search
IP domain name waw.moj.pl
name of the IP-server 194.204.152.34
name of the IP-server 193.178.240.2
!
!
Crypto pki trustpoint TP - self - signed-*.
enrollment selfsigned
the object cn = IOS-Self-Signed - Certificate name-
revocation checking no
rsakeypair TP - self - signed-*.
!
!
crypto TP - self - signed pki certificate chain-*.
certificate self-signed 01
quit smoking
privilege secret 15 user username
username secret privilege test 4 *.
!
!
!
crypto ISAKMP policy 1
BA 3des
preshared authentication
Group 2
ISAKMP crypto key * address y.y.y.y
the local address TOVPNPOOL pool-crypto isakmp client configuration
!
ISAKMP crypto client configuration group RemoteGroup
key *.
pool TOVPNPOOL
ISAKMP crypto vpnclient profile
RemoteGroup group identity match
function identity address 192.168.201.111 255.255.255.255
client authentication list remoteusers
ISAKMP authorization list RemoteGroup
client configuration address respond
!
!
Crypto ipsec transform-set esp-3des esp-sha-hmac vpntowaw
Crypto ipsec transform-set esp-3des esp-md5-hmac vpnwaw
!
Crypto dynamic-map DYNAMICS 10
Set transform-set vpnwaw
vpnclient Set isakmp-profile
market arriere-route
!
!
vpn_wro_waw 1 ipsec-isakmp crypto map
defined peer y.y.y.y
Set transform-set vpntowaw
PFS Group1 Set
match address 104
vpn_wro_waw card crypto 65535-isakmp ipsec dynamic DYNAMICS
!
Bridge IRB
!
!
interface FastEthernet0
spanning tree portfast
!
interface FastEthernet1
spanning tree portfast
!
interface FastEthernet2
spanning tree portfast
!
interface FastEthernet3
spanning tree portfast
!
interface FastEthernet4
Description $ETH - LAN$
IP x.x.x.x 255.255.255.0
IP access-group 102 to
Check IP unicast reverse path
no ip redirection
no ip unreachable
no ip proxy-arp
NAT outside IP
IP virtual-reassembly
route IP cache flow
automatic duplex
automatic speed
vpn_wro_waw card crypto
!
interface Dot11Radio0
no ip address
no ip redirection
no ip unreachable
no ip proxy-arp
route IP cache flow
!
algorithms for encryption tkip encryption mode
!
encryption vlan 1 tkip encryption mode
!
SSID TO - WAW
VLAN 1
open authentication
authentication wpa key management
Comments-mode
WPA - psk ascii *.
!
base speed - 1.0 2.0 basic basic-5, 5 6.0 9.0 basic-11, 0 12.0 18.0 24.0 36.0 48.0 54.0
root of station-role
No dot11 extensions aironet
!
interface Dot11Radio0.1
encapsulation dot1Q 1 native
no link-status of snmp trap
No cdp enable
Bridge-Group 1
Bridge-group subscriber-loop-control 1
Bridge-Group 1 covering-disabled people
Bridge-Group 1 block-unknown-source
No source of bridge-Group 1-learning
unicast bridge-Group 1-floods
!
interface Vlan1
Description $ETH - SW - LAUNCH, INTF-INFO-HWIC $$ $4ESW
no ip address
no ip redirection
no ip unreachable
no ip proxy-arp
IP virtual-reassembly
route IP cache flow
IP tcp adjust-mss 1452
Bridge-Group 1
!
interface BVI1
IP 192.168.201.1 255.255.255.128
IP access-group 101 in
IP nat inside
IP virtual-reassembly
!
local IP TOVPNPOOL 192.168.200.2 pool 192.168.200.101
IP classless
IP route 0.0.0.0 0.0.0.0 a.a.a.a
!
IP http server
1 class IP http access
local IP http authentication
IP http secure server
IP http timeout policy slowed down 60 life 86400 request 10000
IP nat inside source static tcp 192.168.201.3 80 80 FastEthernet4 interface
IP nat inside source overload map route SDM_RMAP_1 interface FastEthernet4
!
Remark SDM_ACL category of access list 1 = 1
access-list 1 permit 192.168.201.0 0.0.0.127
access-list 1 permit 192.168.151.0 0.0.0.255
access-list 1 deny all
Access-list 100 category SDM_ACL = 2 Note
Note access-list 100 IPSec rule
access-list 100 deny ip 192.168.201.0 0.0.0.127 192.168.3.0 0.0.0.255
access-list 100 deny ip 192.168.201.0 0.0.0.127 192.168.2.0 0.0.0.255
access-list 100 deny ip 192.168.201.0 0.0.0.127 192.168.151.0 0.0.0.255
access-list 100 deny ip 192.168.201.0 0.0.0.127 192.168.200.0 0.0.0.255
access-list 100 permit ip 192.168.201.0 0.0.0.127 all
access list 101 remark self-generated by the configuration of the firewall SDM
Note access-list 101 = 1 SDM_ACL category
access-list 101 deny ip x.x.x.x 0.0.0.255 everything
access-list 101 deny ip 255.255.255.255 host everything
access-list 101 deny ip 127.0.0.0 0.255.255.255 everything
access list 101 ip allow a whole
Allow Access - list 101 tcp a whole
access list 101 allow udp a whole
access-list 101 permit icmp any one
access-list 102 permit icmp any host x.x.x.x
access-list 102 permit udp host 194.204.152.34 eq field host x.x.x.x
access-list 102 permit udp host 193.178.240.2 eq field host x.x.x.x
access-list 102 permit udp host host eq non500-isakmp x.x.x.x y.y.y.y
access-list 102 permit udp host host eq isakmp x.x.x.x y.y.y.y
access-list 102 permit esp host host x.x.x.x y.y.y.y
access-list 102 permit ahp host host x.x.x.x y.y.y.y
access-list 102 permit ip 192.168.151.0 0.0.0.255 192.168.201.0 0.0.0.127
access-list 102 permit ip 192.168.200.0 0.0.0.255 192.168.201.0 0.0.0.127
access-list 102 permit ip 192.168.2.0 0.0.0.255 192.168.201.0 0.0.0.127
access-list 102 permit ip 192.168.3.0 0.0.0.255 192.168.201.0 0.0.0.127
access-list 102 permit ip 192.168.201.0 0.0.0.127 all
access-list 102 deny ip 10.0.0.0 0.255.255.255 everything
access-list 102 deny ip 172.16.0.0 0.15.255.255 all
access-list 102 deny ip 192.168.0.0 0.0.255.255 everything
access-list 102 deny ip 127.0.0.0 0.255.255.255 everything
access-list 102 deny ip 192.168.201.0 0.0.0.127 all
access-list 102 refuse host ip 255.255.255.255 everything
access-list 102 refuse host ip 0.0.0.0 everything
access ip-list 102 permit a whole
access-list 103 allow ip 192.168.200.0 0.0.0.255 any
access-list 103 allow ip 192.168.151.0 0.0.0.255 any
access-list 103 allow ip 192.168.201.0 0.0.0.127 all
access-list 103 permit ip 192.168.2.0 0.0.0.255 any
access-list 103 allow ip 192.168.3.0 0.0.0.255 any
access-list 103 allow y.y.y.y ip 0.0.0.7 one
access-list 103 deny ip any one
Remark SDM_ACL category from the list of access-104 = 4
Note access-list 104 IPSec rule
access-list 104. allow ip 192.168.201.0 0.0.0.127 192.168.151.0 0.0.0.255
access-list 104 allow 192.168.201.0 ip 0.0.0.127 192.168.2.0 0.0.0.255
access-list 104 allow 192.168.201.0 ip 0.0.0.127 192.168.3.0 0.0.0.255
access-list 104 allow 192.168.201.0 ip 0.0.0.127 192.168.200.0 0.0.0.255
not run cdp
allowed SDM_RMAP_1 1 route map
corresponds to the IP 100
!
!
control plan
!
Bridge Protocol ieee 1
1 channel ip bridge
!
Line con 0
no activation of the modem
line to 0
line vty 0 4
access-series 103 in
privilege level 15
entry ssh transport
!
max-task-time 5000 Planner
endBartosz,
If you want to ping on the other side of the IPsec-L2L tunnel system you must change your 104 ACL.
to read
IP RA_VPN_POOL subnet REMOTE_SUBNET_MASK to allow REMOTE_SUBNET.
access-list 104 allow 192.168.201.0 ip 0.0.0.127 192.168.200.0 0.0.0.255<---- this="" means="" ..="" put="" into="" the="" static="" l2l ="" tunnel="" traffic="" from="" my="" local="" subnet="" going="" to="" my="" remote="" access="" vpn="" ...="" seems="">---->
Marcin
-
Tunnel VPN remote Internet and VPN remote VPN from Site to Site traffic?
Hello
We try to remote traffic from our users VPN tunnel through our ASA 5510 as well as to allow the only access for remote user VPN traffic to the other end of the all our VPN site-to-site connected to the same ASA. Basically, we who want to VPN in the network in order to access all of our networks business. We try to get away with this without using split Tunneling.
I can currently get internal traffic from the remote user VPN to reach all other vpn site-to-site tunnels without the internet in tunnel. The problem is when I add the following statement to the NAT:
NAT (outside) 1 10.10.19.0 255.255.255.0 * 10.10.19.0 is the address of the remote VPN Client
Internet traffic to the remote VPN starts to get in the tunnel, but I lose the opportunity to reach one of the other tunnels from site to site by the remote VPN tunnel.
I also begin to receive the following errors in the journal of the ASA
3 July 1, 2009 12:34:18 305005 10.10.19.255 137 no group of translation not found for udp src outside:10.10.19.3/137 dst outside:10.10.19.255/137
Any help with how NAT statements must be defined for this work would be appreciated.
Thank you
Will be
Will,
the link of this post for your scenario of vpn hub & speak reference, you problem may be on exempt nat rules.
Have a second look at your sheep rules.
Be sure to eliminate tunnel rules related to rheumatoid arthritis, as appropriate, to not let him get in the way of splitting.
If always emits discribe topology for l2ls and info logic RA and sanatized hub config asa... but I think if you look at the thread above, you should be able to solve.
Concerning
-
Tunnel VPN from Site to Site dynamic
I spent the last 2 days, try to set up a dynamic tunnel VPN site to site of a Cisco 5510 to a Cisco SA540. The 540 is a dynamic supplier that can not be changed. There a dyndns account.
I was lucky that the other 10 sites are all static and the ADSM Assistant creates these tunnels without problems.
What I try to do is:
Is it possible to do it VIA ADSM?
If this isn't the case, someone please in detail can help with orders.
Kind regards
PP
Hello Paul,
This is possible thanks to the ASDM, but you do have to use some advanced settings:
Configuration > VPN Site to Site > advanced > Tunnel groups
It change the group called "DefaultL2LGroup" and add the brightness button before the SA540 (Note: all of your sites with dynamic IP addresses will have the same key communicated in advance, if you have IPSec VPN clients, it will be a good idea to use a different key).
Click ok and then apply.
Then go to Configuration > VPN Site to Site > advanced > Crypto Maps and add a new entry dynamic
Make sure that you match the phase 2 are on your SA540 (pictured ESP-AES-128-SHA), select a dynamic strategy and make the last sequence number (65535) then ok, apply.
Then go to Configuration > VPN Site to Site > advanced > IKE policies and make sure you have corresponding policies of the phase 1.
If no corresponding policy is found, add them.
Through CLI:
IKEv1 crypto policy 1
preshared authentication
aes encryption
sha hash
Group 2
Crypto-map dynamic outside_dyn_map 65535 set transform-set ESP-AES-128-SHA ikev1
CARD crypto ipsec-isakmp 65535 dynamic outside_dyn_map
IPSec-attributes tunnel-group DefaultL2LGroup
IKEv1 pre-shared-key *.
I hope this helps.
-
ASA (v9.1) VPN from Site to Site with IKEv2 and certificates CEP/NDE MS
Hi all
I am currently a problem with VPN Site to Site with IKEv2 and certifiactes as an authentication method.
Here is the configuration:
We have three locations with an any to any layer 2 connection. I created each ASA (ASA5510 worm 9.1) to establish one VPN of Site connection to the other for the other two places. Setting this up with pre shared keys and certificates that are signed by the CA MS administrator manually work correctly.
But when we try to enroll these certificates through the Protocol, CEP/NDE his does not work.
Here are my steps:
1 configure the CA Turstpoint to apply to the certification authority
2. request that the CA through the SCEP protocol works fine
3. set up a Trustpoint and a pair of keys for the S2S - VPN connection
4. registration form identity certificate CA via the SCEP Protocol with a one time password works fine
5. set the trustpoint created as for the S2S - VPN IKEv2 authentication method.
Now I did it also for the other site of the VPN Tunnel. But when I ping on a host that is on a different location to make appear the Tunnel VPN - the VPN session is not established. In the debugs I see that there are a few problems during authentication of the remote peer.
On the MS that I see that the certifactes of identity for both ASAs are communicated and not revoked or pending state. The certificate based on the model of the "IPSec (Offline).
When the CA-Admin and a certificate me manually based on a copy of the model of "Domaincontroller" connection is successfully established.
So I would like to know which is the correct certificate for IP-Sec peers template to use for the Protocol, CEP and MS Enterprise CA (its server 2008R2 of Microsoft Enterprise)?
Anyone done this before?
ASA requires that the local and Remote certificate contains EKU IP Security Tunnel Endpoint (1.3.6.1.5.5.7.3.6) (aka IP Security Tunnel termination). You can create a Microsoft CA model to add.
If you absolutely must go with the 'bad' cert, there is a command
ignore-ipsec-keyusage
but it is obsolete and not recommended.
Meanwhile at the IETF:
RFC 4809
3.1.6.3 extended Key use
Extended Key Usage (EKU) indications are not required. The presence
or lack of an EKU MUST NOT cause an implementation to fail an IKE
connection.
-
Easy VPN with IPSec VPN L2L (Site - to - Site) in the same ASA 5505
Hi Experts,
We have an ASA 5505 in our environment, and currently two IPSec VPN L2L tunnels are established. But we intend to connect with VPN (Network Extension Mode) easy to another site as a customer. Is it possible to configure easy VPN configurations by keeping the currently active IPSec L2L VPN(Site-to-Site) tunnels? If not possible is there any work around?
Here's the warning we get then tried to configure the easy VPN Client.
NOCMEFW1 (config) # vpnclient enable
* Delete "nat (inside) 0 S2S - VPN"
* Detach crypto card attached to the outside interface
* Remove the tunnel groups defined by the user
* Remove the manual configuration of ISA policies
CONFLICT of CONFIG: Configuration that would prevent the Cisco Easy VPN Remo success
you
operation was detected and listed above. Please solve the
above a configuration and re - activate.
Thanks and greetings
ANUP sisi
"Dynamic crypto map must be installed on the server device.
Yes, dynamic crypto is configured on the EasyVPN server.
Thank you
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