Cisco VPN :: Are Tunnel Mode And Identity Negotiable Between Router And ASA5520
Feb 10, 2011
My remote VPN device (static IP address) is setup to connect on the ASA5520 DMZ interface.
Peers performing L2L IPsec VPN with pre-shared keys sync-up regardless of which identity mode selected. If I set the router to “crypto isakmp identity address” or “crypto isakmp identity hostname” the ASA still accepts the connection. Also tunnel mode on initiator (router) is set to “TRANSPORT” but negotiates to TUNNEL mode with ASA.
I am able to successfully ping and telnet from a remote device through the router -- ASA5520 VPN tunnel into the HQ hosts so I can see communication is working.Initial ISAKMP negotiation debugs on router (below) shows the differences but the ASA accepts anyway.
-ASA5520 8.0(4) running in router mode
-ASA should only answer, never initiate VPN sessions
-Cisco 2800 router IOS 12.4 Adv Security should always initiate the VPN session.
-Cisco 2800 router does not have option of key-id, only address, hostname and dn.
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May 31, 2011
Our firewall expert has gone off on long term illness leave and I am trying to pick up the pieces :-(
We have an ASA 5520 (local office) talking to another ASA (remote office) via a VPN Tunnel.
My 1st problem is that I cannot ping from my inside network (local) to the outside interface of my remote ASA.
My 2nd is that I have debug enabled on my rules but am not logging anything.
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Sep 23, 2012
I'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?
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Sep 21, 2011
I am getting the following errow message while trying to create a VPN tunnel between an ASA5520 and a 2921 router. [code]
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Sep 12, 2012
I have implemented a Clientless SSL VPN solution with Smart-Tunnel feature on Cisco ASA 5520, software 8.4(4)1.I have been successful in making Bookmarks which employ Smart-Tunnel feature to avoid content rewritting (if any). And in reality it works fine with some links. However there are some links to an Oracle portal, it doesn't work.I was able to log into the Oracle portal with its username/password. However when i click into a button of the drop-down menu, nothing happens while normally there should be a box appearing. The Oracle portal runs with some Java stuffs which i don't really know as i am not a programming engineer anyway.
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Oct 9, 2012
I was recently tasked with adding a redundant internet connection for one of our remote sites. this new connection was to be used as the primary connection for the VPN from the site with the existing one being configured as a failover controlled by an IP SLA tracker on the new interface.
The existing connection uses a PPPoE connection configured under Dialer1 associated with FE0 to connect to our ASA. Duplicating this wasn't an option given the hardware that the second ISP provided. They provided a /29 for use; I configured FE2 using a Vlan interface with a host on that subnet.
I duplicated the connection profiles and tunnel groups on our ASA, changing only the Peer IP. Both interfaces on the 1811 are using the same crypto map.
The new connection seems fine and I can reach other hosts on its subnet from both the router and hosts on the inside of the NAT.
The issue happens when I change the default route to use the new connection.
I'm able to reach internet hosts using the new connection and I can see the VPN being established on the ASA while the VPN from the old connection drops, but I can't get traffic to route over the tunnel.
If I remove the default route that uses the new connection the VPN comes back up on the old connection just fine. There's no problem routing over the VPN when it uses that connection, just the new one.
Relevant config from show run:
!
crypto isakmp policy 10
encr aes 256
[Code].....
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Apr 10, 2012
We have an ASA5520 version 8.3(1) We have an existing VPN tunnel between us and our partner site. We need to add a new vlan to our existing VPN tunnel.
Where do we need to add the new vlan to in ASDM interface? Looking through using ASDM, I found 3 places.
Site-to-Site VPN:
1) Connection profiles
2) Advanced > crypto maps
3) ACL Manager
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Jan 25, 2011
We have ASA 5520 running 8.2(3) software and we're trying to make Remote Access VPN (l2tp/ipsec) working from Android. We succeeded in making IPSEC tunnel (ending "Phase 2 completed"), but we cannot make L2TP tunnel working.We're using RADIUS for L2TP authentication, but ASA doesn't even try to check credentials entered by use. The same set of credentials entered on Windows {XP, VISTA, 7, Mobile} works ok. Which debugging options should we turned on?
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Sep 13, 2011
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]....
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Jul 8, 2012
I need limited access to cisco ASA 5520 for same operators. This operators can switch on/off vpn policy ONLY I grant "privilege cmd level 3 mode group-policy command vpn-tunnel-protocol","privilege cmd level 3 mode exec command configure" and "privilege cmd level 3 mode exec command write"
But I receive error on "write memory" command: write memory Building configuration.. Error executing command [FAILED]
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Aug 19, 2012
we currently have a remote access asa setup using Anyconnect with self signed certificate, and several users in the certificate database as we are using radius and certificate for authentication.
I want to purchase and obtain a trusted CA signed certificate (such as Verisign) and replace the current self signed cert.
My question is will I have to reset the current CA server of the ASA and replace the certificate user database? ie start from scratch.
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Dec 1, 2011
How can I NAT the same set of four hosts and give them access to two different networks across an IPSEC site-to-site VPN tunnel? I'm using an ASA5520 running 8.04.
I have four hosts say: 10.240.1.1-10.240.1.4
They need access to two different networks:
205.100.150.0
140.175.200.0
I woud like to NAT them as something like:
7.5.210.1
7.5.210.2
7.5.210.3
7.5.210.4
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May 13, 2011
I find it hard to understand tunnel and transport mode, the differences between them, and NAT. Ok so I have this scenario: Site2site VPN with 2 Cisco routers.
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Aug 10, 2011
I cannot get it to work : if interesting traffic comes ffrom the IPSO side, the box would not even try to set up the tunnel. and If it comes fomr the ASA side, the box attempts to do so but it with this strange message : AM_WAIT_MSG2
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Jun 19, 2011
this is ASA5520 associate with 8.4(1). very simple scenario , three ports: inside . outside . DMZ my problem is how to use network object NAT to perform Regular Dynamic PAT and Identity NAT.
for example, this is my configuration
**** first i configured Regular Dynamic PAT****
object network myinside
subnet 10.200.11.0 255.255.255.0
nat (inside,outside) dynamic interface
**** then , i met problem when i want to make identity NAT between inside and DMZ****
**** if i add below CLI , the first nat line will be replaced ****
**** SO IF I ADD THIS****
[code]......
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Jun 14, 2012
I have a site-site VPN tunnel between my location and my remote office. My remote office is changing their ISP, so the VPN GW is getting changed. do i need to create new site-site tunnel again or changing the remote peer VPN GW in my FW is enough? FYI, i have cisco ASA5520 and my remote office has check point UTM-1 edge box.
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Jun 13, 2011
Currently, I have in a number of remote sites (with dynamic public address) a C800.On this Cisco, I have a config for initiating an agressive-mode tunnel to a central ASA.relevant part of the config:
---
crypto isakmp policy 10
encr aes
authentication pre-share
group 2
!
crypto isakmp peer address 1.2.3.4
[code].....
Now I need to replace these C800 by ASA5505. But I don't know how to replace the "crypto isakmp peer address" command in ASA.The C800 transmits both the password (abcdefg in my example) and the fqdn (remotesite1 in the example). how to configure the ASA to build the tunnel the way the C800 did?
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Sep 19, 2011
I am trying to implement RBSCP on two 3845s running 15.1(4)M1 Adv Enterprise over a satellite link. The "show" commands all look correct, but whenever I policy route my machine through the RBSCP tunnel I dont even make it to the opposite side. However, if I remove the "tunnel mode RBSCP" command so it acts like a regular GRE tunnel, I route through it just fine. So I know its not a NAT, routing issue. [code]
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Jun 14, 2011
We would like to enable ACS authentication to login to different routers (Cisco 881s) we got that are interconnecting with our WAN via VPN tunnels. We would like to avoid using public IP for the router to communicate and relay user/password info with the ACS server and rely on the server's private IP instead. The problem is that all the router's outside interfaces connect to the Internet using public IPs and when the router wants to communicate with the ACS server it will use its public-facing interface IP and that'll fail. We can ping the server obviously when we set the source to the internal LAN IP.
The question is is there a way to have the router communicate with ACS across the VPN tunnel using its private IP?
config being used and tested succesfully on local devices:
aaa new-model
tacacs-server host 10.x.x.x single-connection key xxxxxx
aaa authentication login tacacs-local group tacacs local
[Code].....
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Mar 22, 2012
what's the best way to apply a patch in ACS 5.2 distributed configuration ?
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Feb 8, 2012
how to Config the ACS 4.2 server runs in TACACS + mode (users accounts configured the ACS) mode to authenticate enable mode password on the asa using the same AD account?
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Aug 22, 2011
I'm trying to configure ASA 5550 t8.4 so, that ssh and https access users would authenticate themselves vs Radius (or LDAP) server and they would be directly logged in with privilege mode 15.
I have Windows 2008 NTP acting as RADIUS server. And the network policy is: Service-Type - Login, Vendor-Specific - shell:priv-lvl=15 and allow full network access. All my AP's and switches with IOS are able to use that policy and i am able to get directly to exec mode (privilege lvl 15)
But on ASA, the user has to "enable" itself.
ASA conf:
#aaa-server <group name> protocol radius#aaa-server <group name> (inside) host <ip address> key 013B072C5A26070B2475411C350A18192218313A6A671F1A1B
#(config)aaa authentication ssh console <group name> LOCAL
#(config)aaa authentication http console <group name> LOCAL
How to get authorization working with LDAP (Active Directory)?
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Apr 11, 2013
I am trying to get users in the external identity store (AD) to be dropped directly into enable mode after being authenticated, since I don't know of a way to set an enable password for users in an external identity store. I think it has something to do with shell attributes but I'm not realy sure.
So here's what I tried.Linking identity group to external group and provide full command priviliges - enable still didn't work Creating duplicate users in the internal identity store and setting the password type field to AD1 - That gives me the ability to get to the enable password prompt hit enter on the blank promt then prompts for Old and new passwords but fails everytime with an Error in Authentication.
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Dec 30, 2012
I configured the below config in Routers it is working good , but when i do the same in SWITCH-2960 , i am getting a problem not able to login to enable mode ... i am getting the basic login only ....
Error msg : % Error in Authentication.
Need to be configured at TAFE Network Devices: Code...
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Jan 24, 2013
how do I setup an enable password for an ASA 5510? At the moment its setup to authenticate using RADIUS (which I'd like to keep doing) but I need to setup an enable mode password.
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Mar 18, 2012
I am using 802.1x authentication with multi-domain ports; Phone and PC connected to phone. The phones are Nortel (Avaya) and the PCs are Dell/HP Laptops. All are configured for Certificate authentication and this works well. However we sometimes get some ports stuck in Guest mode. when a non certificated laptop connects to a phone port and fails authentication, the data port is placed in the Guest VLAN. However when the laptop disconnects the port isn't reset and remains in the guest state. When a subsequent good laptop connects and attempts to authenticate the switch ignores this and leaves the data port in the Guest VLAN. he switch is a 2960S with Version 12.2(58)SE2 IOS.
The port is configured as follows:
!
interface GigabitEthernet1/0/15
description DANS Port
switchport access vlan 1807
switchport mode access
switchport voice vlan 1855
priority-queue out
[code]....
I placed the AAA, dot1x, eap and auth debug on for all events and then connected a good laptop, the only debug message I got were as follows:
Mar 19 16:17:01.391 GMT: AUTH-EVENT (Gi1/0/15) dot1x_switch_is_restrictive_vlan_open_auth:Multi-Host with Guest Vlan/Auth Fail Vlan or open aut
Mar 19 16:17:01.653 GMT: AUTH-EVENT (Gi1/0/15) dot1x_switch_is_restrictive_vlan_open_auth:Multi-Host with Guest Vlan/Auth Fail Vlan or open aut
Mar 19 16:17:02.654 GMT: AUTH-EVENT (Gi1/0/15) dot1x_switch_is_restrictive_vlan_open_auth:Multi-Host with Guest Vlan/Auth Fail Vlan or open aut
[code]....
I would have expected the auth function to have reacted to the EAP packets sent by the good client when it connected and performed eap authentication but it didn't, all it did was say the ports in Guest mode and left the laptop in this VLAN.
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Dec 5, 2012
I successfully authenticate through ACS to my Identity Store, but only get dropped into a non-enable prompt: ciscoasa> How can I get an Authenticated user directly into enable mode?
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Feb 26, 2013
How can we know that 6500 and 7600 series switch and router are running in native mode or in hybrid mode.
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Mar 21, 2013
I have a setup with a were I configured monitor mode on a switch with ISE as RADIUS server. This is for testing before a bigger deployment at a customer site.Im using ISE 1.1.3, C2960 and IOS 15.0(2) and a laptop with Windows 7 Enterprise SP1. The correct configuration with EAP-TLS and machin cert is working like it should but it is when I remove this and make the laptop fail that I get wierd results with monitor mode. I cant get DNS to work in dot1x monitor mode if the client fail authentication.
When the client fail dot1x and MAB it gets a IP with DHCP. I can ping but DNS/browsing is not working. If I put the AuthC back and the client authenticates DNS is working, or if I turn of dot1x on the client then DNS work as it should. [code]
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Jul 5, 2011
how to straight away enter priv EXEC mode when authenticated for asr1002?? Using XR12000, it can be done but asr1002 have to input enable passwd...my username for asr1002 have privilege 15 and i want to enter priv EXEC mode straight away after login without asking the enable passwd.
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Aug 26, 2007
I tried to authenticate and authorized Nokia/checkpoint Nortel/AD3 and Nortel 5510 platform using an 4.1 for windows ACS. the ACCESS-REQUEST is well processed bi the radius server wich send ACCESS-ACCEPT to the AAA Client (ie NORTEL or NOKIA), but i'have got privilege access denied on the Client side. RADIUS IETF Dictionnary is used for every device. all others Cisco Devices authenticate and are well authorized.
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Apr 30, 2012
Need to know the step by step procedure for monitoring site-to-site VPN tunnel (up/down) using SNMP on Cisco ASA 5505.
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May 28, 2008
I'm swapping out a PIX, IOS 6.3 with an ASA 5520 v8. The PIX has the following 2 commands in it's config:
multicast interface outside
multicast interface inside
These commands do not exist on the ASA. I do not wish to enable multicast routing. What commands on the ASA are equivalent to the multicast commands on the PIX?
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