BIND THE SINGLE TUNNEL ON ASA IP ADDRESS
Hi all
BACKGROUND
We have a VPN site-to put in place between two ASAs by using IPSEC.
PROBLEM
We will refer to this configuration as a site A and site B. The site has, we have an obligation to ensure that all traffic from a single host goes through the VPN tunnel while all the other guests to site A have local access to the internet and do not cross the L2L tunnel. We study the best solution for this, including the possibilities of VLANS, static NATs and ACL. Also on the client device, we'll need to bind a MAC address to ensure the same local IP address is returned every time via DHCP, although if the client device sits in its own VIRTUAL local network for example then binding MAC address is not required. It is not possible to configure a static IP address on the host device.
Does anyone have recommendations as to how best to configure this requirement.
Thank you
You are right that the ASA, for now, does not support the DHCP reservations. If your only option to get what you want to work is to place the customer in a VLAN separated where you can assign a distinct scope (as you mentioned)
--
Please note all useful posts
Tags: Cisco Security
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LN-BLF-ASA5505 > en
Password: *.
ASA5505-BLF-LN # sho run
: Saved
:
: Serial number: JMX1216Z0SM
: Material: ASA5505, 256 MB RAM, 500 MHz Geode Processor
:
ASA 5,0000 Version 21
!
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passwd
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!
interface Ethernet0/2
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interface Ethernet0/3
!
interface Ethernet0/4
!
interface Ethernet0/5
!
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!
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!
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object-network 192.168.4.0 255.255.255.0
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Crypto ipsec ikev1 transform-set ESP-AES-128-SHA-TRANS mode transit
Crypto ipsec transform-set ikev1 ESP-AES-128-MD5-TRANS-aes - esp esp-md5-hmac
Crypto ipsec ikev1 transform-set ESP-AES-128-MD5-TRANS mode transit
Crypto ipsec transform-set ikev1 ESP-AES-192-SHA-TRANS esp-aes-192 esp-sha-hmac
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Crypto ipsec transform-set ikev1 ESP-AES-192-MD5-TRANS esp-aes-192 esp-md5-hmac
Crypto ipsec ikev1 transform-set ESP-AES-192-MD5-TRANS mode transit
Crypto ipsec transform-set ikev1 ESP-AES-256-SHA-TRANS esp-aes-256 esp-sha-hmac
Crypto ipsec ikev1 transform-set ESP-AES-256-SHA-TRANS mode transit
Crypto ipsec transform-set ikev1 ESP-AES-256-MD5-TRANS esp-aes-256 esp-md5-hmac
Crypto ipsec ikev1 transform-set ESP-AES-256-MD5-TRANS mode transit
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certificate ca 6ecc7aa5a7032009b8cebcf4e952d491
308204 4 a0030201 d 308205ec 0202106e cc7aa5a7 032009b 8 cebcf4e9 52d 49130
010105 05003081 09060355 04061302 55533117 ca310b30 0d 864886f7 0d06092a
30150603 55040 has 13 0e566572 69536967 6e2c2049 6e632e31 1f301d06 0355040b
13165665 72695369 676e2054 72757374 204e6574 776f726b 313 has 3038 06035504
0b 133128 63292032 30303620 56657269 5369676e 2c20496e 632e202d 20466f72
20617574 7a 656420 75736520 6f6e6c79 31453043 06035504 03133c 56 686f7269
65726953 69676e20 436c 6173 73203320 5075626c 69632050 72696 72792043 61 d
65727469 66696361 74696f6e 20417574 686f7269 7479202d 20473530 1e170d31
30303230 38303030 3030305a 170d 3230 30323037 32333539 35395a 30 81b5310b
30090603 55040613 02555331 17301506 0355040a 130e5665 72695369 676e2c20
496e632e 311f301d 06035504 0b 131656 65726953 69676e20 54727573 74204e65
74776f72 6b313b30 5465726d 20757365 20617420 73206f66 39060355 040b 1332
68747470 7777772e 733a2f2f 76657269 7369676e 2e636f6d 2f727061 20286329
302d 0603 55040313 26566572 69536967 61737320 33205365 6e20436c 3130312f
63757265 20536572 76657220 20473330 82012230 0d06092a 864886f7 4341202d
010101 05000382 010f0030 82010 0d has 02 b187841f 82010100 c20c45f5 bcab2597
a7ada23e 9cbaf6c1 39b88bca c2ac56c6 e5bb658e 444f4dce 6fed094a d4af4e10
9c688b2e 957b899b 13cae234 34c1f35b f3497b62 d188786c 83488174 0253f9bc
7f432657 5833833b 330a17b0 d04e9124 ad867d64 12dc744a 34a11d0a ea961d0b
15fca34b 3bce6388 d0f82d0c 948610ca b69a3dca eb379c00 48358629 5078e845
1941 4ff595ec 7b98d4c4 71b350be 28b38fa0 b9539cf5 ca2c23a9 fd1406e8 63cd
18b49ae8 3c6e81fd e4cd3536 b351d369 ec12ba56 6e6f9b57 c58b14e7 0ec79ced
4a546ac9 4dc5bf11 b1ae1c67 81cb4455 33997f24 9b3f5345 7f861af3 3cfa6d7f
81f5b84a d3f58537 1cb5a6d0 09e4187b 384efa0f 01 has 38201 02030100 df308201
082b 0601 05050701 01042830 26302406 082 b 0601 db303406 05050730 01861868
7474703a 2f2f6f63 73702e76 65726973 69676e2e 636f6d30 12060355 1 d 130101
ff040830 02010030 70060355 b 200469 30673065 060, 6086 480186f8 1 d 060101ff
45010717 03305630 2806082b 06010505 07020116 1 c 687474 70733a2f 2f777777
2e766572 69736967 6e2e636f 6d2f6370 73302 has 06 082 b 0601 05050702 02301e1a
1 c 687474 70733a2f 2f777777 2e766572 69736967 6e2e636f 6d2f7270 61303406
03551d1f 042d302b 3029 has 027 a0258623 68747470 3a2f2f63 726c2e76 65726973
69676e2e 636f6d2f 2d67352e 70636133 63726c 30 0e060355 1d0f0101 ff040403
02010630 6d06082b 06010505 07010c 59305730 55160969 5da05b30 04 61305fa1
6 d 616765 2f676966 3021301f 2b0e0302 30070605 1a04148f e5d31a86 ac8d8e6b
c3cf806a d448182c 7b192e30 25162368 7474703a 2f2f6c6f 676f2e76 65726973
69676e2e 636f6d2f 76736c6f 676f2e67 69663028 0603551d 11042130 1fa41d30
1 b 311930 17060355 04031310 56657269 5369676e 4d504b49 2d322d36 301D 0603
445 1653 44c1827e 1d20ab25 f40163d8 be79a530 1f060355 c 1604140d 551d0e04
1 230418 30168014 7fd365a7 c2ddecbb f03009f3 4339fa02 af333133 300 d 0609 d
2a 864886 05050003 82010100 0c8324ef ddc30cd9 589cfe36 b6eb8a80 f70d0101
4bd1a3f7 9df3cc53 ef829ea3 a1e697c1 589d756c e01d1b4c fad1c12d 05c0ea6e
b2227055 d9203340 3307c 265 83fa8f43 379bea0e 9a6c70ee f69c803b d937f47a
99 c 71928 8705 404167d 1 273aeddc 866d 24f78526 a2bed877 7d494aca 6decd018
481d22cd 0b0b8bbc f4b17bfd b499a8e9 762ae11a 2d876e74 d388dd1e 22c6df16
b62b8214 0a945cf2 50ecafce ff62370d ad65d306 4153ed02 14c8b558 28a1ace0
5becb37f 954afb03 c8ad26db e6667812 4ad99f42 fbe198e6 42839b8f 8f6724e8
6119b5dd cdb50b26 058ec36e c4c875b8 46cfe218 065ea9ae a8819a47 16de0c28
6c2527b9 deb78458 c61f381e a4c4cb66
quit smoking
crypto isakmp identity address
Crypto isakmp nat-traversal 1500
Crypto ikev1 allow outside
IKEv1 crypto policy 10
preshared authentication
aes-256 encryption
sha hash
Group 5
life 86400
IKEv1 crypto policy 65535
preshared authentication
3des encryption
sha hash
Group 2
life 86400
Telnet timeout 5
SSH stricthostkeycheck
SSH 0.0.0.0 0.0.0.0 inside
SSH 0.0.0.0 0.0.0.0 outdoors
SSH timeout 5
SSH version 2
SSH group dh-Group1-sha1 key exchange
Console timeout 0
management-access insidea basic threat threat detection
Statistics-list of access threat detection
no statistical threat detection tcp-interception
attributes of Group Policy DfltGrpPolicy
Ikev1 VPN-tunnel-Protocol l2tp ipsec without ssl-client
username
username
tunnel-group 50.201.218.93 type ipsec-l2l
IPSec-attributes tunnel-group 50.201.218.93
IKEv1 pre-shared-key *.
NOCHECK Peer-id-validate
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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
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class inspection_default
inspect the preset_dns_map dns
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inspect h323 h225
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inspect the skinny
inspect esmtp
inspect sqlnet
inspect sunrpc
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inspect xdmcp
Review the ip options
!
global service-policy global_policy
context of prompt hostname
call-home service
anonymous reporting remote call
call-home
contact-email-addr [email protected] / * /
Profile of CiscoTAC-1
http https://tools.cisco.com/its/service/oddce/services/DDCEService destination address
email address of destination [email protected] / * /
destination-mode http transport
Subscribe to alert-group diagnosis
Subscribe to alert-group environment
Subscribe to alert-group monthly periodic inventory
monthly periodicals to subscribe to alert-group configuration
daily periodic subscribe to alert-group telemetry
Cryptochecksum:e519f212867755f697101394f40d9ed7
: end
LN-BLF-ASA5505 #.Assuming that you have an active IPSEC security association (i.e. "show crypto ipsec his" shows the tunnel is up), please perform a packet trace to see why it's a failure:
packet-tracer input inside tcp 192.168.116.1 1025 192.168.1.1 80 detail
(simulating a hypothetical customer of blue LNC tries to navigate to a hypothetical LNC TX Local site server)
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Capacity of the crypto ipsec Cisco ASA 9.1 stats system failures
Hello
I'm trying to find some performance issues on one ASA centralized and some site VPN settings. I already address bits of fragmentation and flow control which seeks to solve performance problems, but I came across something that I can't identify to understand what he said.
I can't seem to find any documentation that explains what triggers the counter for "Capacity of the system failures" on the stats command see the crypto ipsec:
crypto ipsec sho stats #.
IPsec statistics
-----------------------
The active tunnels: 41
Previous tunnels: 8999
Incoming traffic
Bytes: 8292491846127
Decompressed bytes: 8292491846127
Packages: 25115896849
Packet ignored: 1291637
Review of chess: 220
Authentications: 25114592561
Authentication failures: 0
Decryptions: 25114592564
Decryption failures: 0
TFC packages: 12836
Fragments of decapsules who need reassembly: 17418535
Invalid ICMP received errors: 0
Invalid ICMP received errors: 0
Outgoing
Bytes: 37818073925334
Uncompressed bytes: 37818837785556
Packages: 38014583887
Packet ignored: 2413164
Authentications: 38020189281
Authentication failures: 0
Encryption: 38020191839
Encryption failures: 0
TFC packets: 0
Success of fragmentation: 7763651
Fragmentation before successses: 7763651
After fragmentation success stories: 0
Fragmentation failures: 267158
The failures of previous fragmentation: 267158
Fragmentation failures after: 0
Fragments created: 15527302
PMTUs sent: 267158
PMTUs rcvd: 185
Protocol of failures: 0
Missing chess SA: 255102
Outages of capacity: 3167258Does anyone have knowledge of what this is referring to specifically?
Cheers, Dale
Hello
What is the model of the ASA you have and how many vpn sessions you get on average during peak hours?
Lack of capacity occurs when it is short of ability of the material or the use...
Concerning
Knockaert
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How to change AnyConnect VPN remote to complete the split tunnel tunnel?
I couldn't find an answer through the config of the SAA in the Cisco documentation and using Google. To activate the complete tunnel for the AnyConnect client group policy, I just need to change the policy of Tunneling split to all networks of tunnels and set list of network voice against zero, if I want someone who connects with the AnyConnect customer to guarantee mobility to use internet corp pipe?
Who, more you will also need a NAT nat rule VPN pool meets the ASA outside interface (or if address / hen you normally use for dynamic NAT).
There are a few good examples with illustrations in this document.
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Authentication of ACS in the VPN tunnel
We want to enable the ACS authentication to connect to different routers (Cisco 881 s) we have obtained who are communicating with our WAN via VPN tunnels. We want to avoid using public IP of the router to communicate and pass information to user/password with the ACS server and rely on the IP of the server private instead. The problem is that external interfaces of the router connect to the Internet using public IP addresses and when the router wishes to communicate with the ACS server it will use its IP of the interface to the public and which will fail. We can ping on the server of course when we set the source to the internal LAN IP.
The question is are there any way to have the router contact ACS through the VPN tunnel using a private IP address?
config is used and tested with success on local equipment:
AAA new-model
RADIUS-server host 10.x.x.x single-connection key xxxxxx
AAA authentication login Ganymede-local group local Ganymede
AAA authorization commands x Ganymede-local group Ganymede + if authenticated
AAA authorization exec Ganymede-local group Ganymede + authenticated if
See the establishment of privileges exec level x
line vty 0 4
Ganymede-local authentication login
authorization controls Ganymede-local x
-ACS ping to the router (WAN via VPN connection) when using public IP address of the router as the source address:
RT881 #ping 10.x.x.x
Type to abort escape sequence.
Send 5, echoes ICMP 100 bytes to 10.x.x.x, time-out is 2 seconds:
.....
Success rate is 0% (0/5)
-ACS ping to the router (WAN via VPN connection) when using IP private of the LAN as source address:
RT881 #ping source 10.x.x.1 10.x.x.x
Type to abort escape sequence.
Send 5, echoes ICMP 100 bytes to 10.x.x.x, time-out is 2 seconds:
Packet sent with a source address of 10.x.x.1
!!!!!
Success rate is 100 per cent (5/5), round-trip min/avg/max = 72/72/76 ms
Looking forward to your responses and suggestions.
Thanks, M.
Hey Maher,
You can use the command 'Ganymede-source interface ip' or 'RADIUS source-interface ip' for your scenario.
I hope this helps!
Kind regards
Assia
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automatic start of Tunnel VPN ASA.
I was wondering if anyone had ideas for a problem I'm having.
I had previously configured a router IOS which had a dynamic IP address from the ISP vpn to PIX headquarters. I got the PIX configured to address generic isakmp/crypto peer so he did not care what peer IP address attempted vpn handshake with him. But, in order to show the VPN, to be launched on the side IOS router because of the dynamics to static vpn LAN is configured.
The problem I had initially was behind the IOS router on its side LAN I had cameras that has not generated any traffic by themselves, so the VPN is not never come to the top and how I had the time that was on the IOS router I set an IP address of the fake NTP server that was in the subnet through the VPN on the side of PIX and then source the The IOS NTP ethernet router so it would automatically take place of the tunnel by himself.
Now we are trying to implement and ASA instead of and router IOS and the NTP commands are there including the source option that can be 'inside' or 'outside' but it does not work as did the IOS router. I also tried to create a kind of SNMP or SLA with some source options but who did not bring to the top of the tunnel either. It's as if he's not he sourcing from an IP address or interface that looks like to the interesting traffic.
I wonder if it's something to with the fact that the ASA, we set up we did put the IP addresses on the local VIRTUAL network interfaces and then put the Ethernet Interfaces in the vlan access switchport special instead of putting on the Interfaces Ethernet IP addresses themselves.
Someone has any ideas in order to automatically initialize the vpn tunnel to the ASA configuration?
You may need to add outside of ASA interface as interesting traffic. That is usually when you want a remote ASA/pix syslog to a local syslog server. I know you do ntp, but should be the same. Looks like the same problem here. In any case it is worth it.
Here is the doc for pix but it is similar to the ASA.
Maybe you are looking for
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