IPSec VPN in the context of security... Static interface or not?
Hello
For the moment, I have a pair of ASA5510 in context configured Multiple. Everything is ok, but we use til now only the ACL functions.
Now, I would be interested in configuration 2 contexts, with IPSec VPN. A VPN by context. But I can't find any information if it would be possible to use a common interface for both contexts. My wish would be only to spare public IPs...
If I have to configure VPN 100 100 contexts, I need 100 public IPs?
Thanks to anyone who can give me a tip,
Kind regards
Olivier
Hello
If you have separate IP addresses on the same subnet, you can reach these interfaces to different contexts
You only configure a sub with a interface ID Vlan that is connected to the gateway of the ISP. You can join this subinterface settings as much as you want but the IP address on the interface must naturally be different in each context. To my knowledge ASA really prevent you from setting up the IP address if she sees him in a different context in the same subinterface.
-Jouni
Tags: Cisco Security
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Hello guys,.
I have Cisco ASA5520 facing the ISP with private IP address. We don't have a router and how to get the IPSec VPN through the internet?
The question statement not the interface pointing to ISP isn't IP address private and inside as well.
Firewall configuration:
Firewall outside interface Gi0 10.0.1.2 > ISP 10.0.1.1 with security-level 0
Firewall inside the interface Ethernet0 192.168.1.1 > LAN switch 192.168.1.2 with security-level 100
I have public IP block 199.9.9.1/28
How can I use the public IP address to create the IPSec VPN tunnel between two sites across the internet?
can I assign a public IP address on the Gig1 inside the interface with the security level of 100 and how to apply inside to carry on this interface?
If I configure > firewall inside of the item in gi1 interface ip address 199.9.9.1/28 with security-level 100. How to make a safe lane VPN through this interface on the internet?
I'm used to the public IP address allocation to the interface outside of the firewall and private inside the interface IP address.
Please help with configuration examples and advise.
Thank you
Eric
Unfortunately, you can only complete the VPN connection on the interface the VPN connection source, in your case the external interface.
3 options:
(1) connect a router in front of the ASA and assign your public ip address to the ASA outside interface.
OR /.
(2) If your ISP can perform static translation of 1 to 1, then you can always finish the VPN on the external interface and ask your provider what is the static ip address assigned to your ASA out of the IP (10.0.1.2) - this will launch the VPN of bidirectionally
OR /.
(3) If your ISP performs PAT (dynamic NAT), then you can only start the tunnel VPN on the side of the ASA and the other end of the tunnel must be configured to allow VPN LAN-to-LAN dynamics.
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Since you're using track/IP SLA to activate a single link to a single IP address of time will be answers.
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ISA500 site by site ipsec VPN with Cisco IGR
Hello
I tried a VPN site by site work with Openswan and Cisco 2821 router configuration an Ipsec tunnel to site by site with Cisco 2821 and ISA550.
But without success.
my config for openswan, just FYI, maybe not importand for this problem
installation of config
protostack = netkey
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sha hash
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card crypto CMAP_1 1-isakmp dynamic ipsec DYNMAP_1
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!
ISAKMP crypto key
address 0.0.0.0 0.0.0.0 ISAKMP crypto keepalive 30 periodicals
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interface GigabitEthernet0/0.4002
card crypto CMAP_1
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I tried ISA550 a config with the same constelations, but without suggesting.
Anyone has the same problem?
And had anyone has a tip for me, or has someone expirense with a site-by-site with ISA550 and Cisco 2821 ipsec tunnel?
I can successfully establish a tunnel between openswan linux server and the isa550.
Patrick,
as you can see on newspapers, the software behind ISA is also OpenSWAN
I have a facility with a 892 SRI running which should be the same as your 29erxx.
Use your IOS Config dynmap, penny, you are on the average nomad. If you don't have any RW customer you shoul go on IOS "No.-xauth" after the isakmp encryption key.
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session of crypto consignment
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