Default route change in tunnel
I have a Cisco ASA 5510, which provides routing functions and an acts as a virtual private network. I'm trying to configure the VPN so that customers route all their traffic through the default gateway provided by the ASA. It is a split tunnel configuration, but when clients connect, they always seem to use their old default gateway to route traffic. I tried a few different things and I'm sure it's due to the static route entry by default in the configuration:
Route outside 0.0.0.0 0.0.0.0 69.12.252.209 1
I think I changed to the tunnel. However, when I try to do either from the CLI or the ASA ADSM hangs for 30 minutes and won't do anything (including road traffic).
It is the straight line config which is causing the problem? No idea why I can't edit it?
Hi Tim,.
If you want to send all traffic to the VPN clients to reach the ASA for a different default gateway, you must set the tunnel on the command line option
Now that I can understand you use split tunnel and what you are looking for is to send all traffic to the ASA vpn clients and then make a u-turn and use the same default gateway of the SAA.
To do this, you must do the following:
1. take the configuration of tunnel of splitting the group policy that you want to encrypt and send all traffic from VPN clients through the tunnel of the ASA, then from this place outside using the same gateway as ASA.
Permit even enable 2-security-traffic intra-interface to allow traffic to turn around
3 configure a Nat rule (outside, outside) from the pool of the VPN client to the external interface of the ASA
Example of the nat using 8.3
network of the VPN_POOL object
10.0.0.0 subnet 255.255.255.0
output
interface NAT (outside, outside) dynamic source VPN_POOL
Who must make the man!
Concerning
Julio
Tags: Cisco Security
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Default route inside the tunnel VPN Site to site
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I have due to difficulties
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Hello
As I understand it then you want to route ALL traffic from the Remote Site to the Central Site and manage Internet traffic there.
I suppose you could define "interesting traffic" in configuring VPN L2L ACL / access-list in the following way
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Post edited by: Jouni Forss
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This is called "split tunneling". For maximum security, you should not use it.
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Of http://www.cisco.com/application/pdf/en/us/guest/products/ps6659/c1650/cdccont_0900aecd80313bd6.pdf
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We have an ASA 5550. How do you put the statement inside the default route? When I put inside default route (road inside 0.0.0.0 0.0.0.0 172.16.3.254 in tunnel), I can't get on the internet when I connect to the client VPN Cisco with Group Policy techsupport (complete tunnel). However, I can get on the internet with tunnel of split for the splitunnel group policy. The config is attached. Please let me know if you need additional information.
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Thank you.
You have no need configure the road inside the subcutaneous tunnel no split policy keyword. With the current configuration, you should be able to access the Internet through the external interface. You try to send internet traffic to your internet gateway internal? Or the ASA outside interface of the default gateway for the internet VPN Client traffic?
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Hi guys;
I have a problem and I don't know how to find or solve it.
My chart is attached, please check everything first.
Secondly, I have a multihomed BGP with two Internet service providers, I received two ISPS via BGP default route.
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With ACB option, you config-route map is your own prefix and set its next hop ISP 1 and 2 PSI when ISP 1 IP is not accessible. Apply the road map to interface with Network1. ACB is processed before routing.
With option VRF, put the Network1 interface and isps1 VRF1, so it will have separate routing table. Under the vrf1 you static default config with higher AD and the next hop pointing to ISP2 in the global routing table. This will be used when you lose by default isps1. Because separate ridges VRF table routing, so netwoek1 will use the default route in vrf1 to isps1 as primary, the Network2 use ISP2.
HTH,
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Hello everyone, I'm new to networking and the question I am about to ask is probably stupid enough to most of you here, but anyway...
Question: -.
If I want traffic to flow inside the interface on firewall ASA outside, a default route (or some kind of routing) always must be configured FIRST? before ACL or NAT?
see you soon
The ASA needs to know how to reach the destination. It the destination is a network directly connected on the SAA, so no additional path is necessary. But if it comes to a remote network, the ASA needs to learn the track by a protocol of dynamic routing or through a configured explicit route (which could be the default route).
If you need an ACL depends on your configuration. By default, all communications from lower security level are allowed. The inside interface usually has a level of security of the external interface of 0 and 100. So by default, it will work without an ACL. But if there is an ACL inside interface, then this ACL must allow the initial traffic.
And for communication to a remote destination outside you probably also need NAT configured.
--
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 -
We are eager to apply antispoofing on an interface that has a default route pointing out of it.
This means, for traffic came to this port, no matter what the source IP address, the default route will satisfy the condition that there is a route to the source address of the interface this pkt is currently detect on? URPF is useless in this scenario?
I don't see how to loose uRPF would help.
Thanks for any help.
Best regards, MH
HD
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Usually uRPF will not use the route by default unless you use the keyword "allow by default".
In your case, you can be better to use the traditional ACL to block RFC1918 address etc.
Jon
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Published by: newenrba on March 20, 2012 12:30Hello
You can archive this as shown here http://tompeez.wordpress.com/2011/11/27/jdev-11-1-2-1-0-using-router-to-conditionally-set-navigation-target/
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For more specialized assistance on this issue, please repost your request here on the TechNet Forum.
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