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ASA VPN configuration for Hub & Spoke using OSPF

laut
Level 1
Level 1

Dear all,

I'm planning to deploy the ASA VPN solution for more than 10 remote sites. Three of them are considered HUB sites. I want to know how to build-up the connectivity between the Spokes terminated to different Hub sites, is that possible running OSPF instead of fully mesh VPN?

Thanks

Tony

17 Replies 17

ggilbert
Cisco Employee
Cisco Employee

Tony,

In the example given to you, one of the spoke was a dynamic Lan to Lan tunnel and the other one was a static Lan to LAN tunnel

Taking your example into account

Hub - 10.10.10.x

Spoke1 - 10.20.20.x

Spoke2 - 10.30.30.x

Here is how the ACL's should look like.

Hub:

Access-list for tunnel between Hub and Spoke1

access-list 110 per ip 10.10.10.0 255.255.255.0 10.20.20.0 255.255.255.0

access-list 110 per ip 10.30.30.0 255.255.255.0 10.20.20.0 255.255.255.0

Access-list for tunnel between Hub and Spoke 2

access-list 120 per ip 10.10.10.0 255.255.255.0 10.30.30.0 255.255.255.0

access-list 120 per ip 10.20.20.0 255.255.255.0 10.30.30.0 255.255.255.0

Access-list for nonat (NAT exemption)

access-list nonat per ip 10.10.10.0 255.255.255.0 10.20.20.0 255.255.255.0

access-list nonat per ip 10.10.10.0 255.255.255.0 10.30.30.0 255.255.255.0

Spoke 1:

access-list 101 per ip 10.20.20.0 255.255.255.0 10.10.10.0 255.255.255.0

access-list 101 per ip 10.20.20.0 255.255.255.0 10.30.30.0 255.255.255.0

Spoke 2:

access-list 102 per ip 10.30.30.0 255.255.255.0 10.10.10.0 255.255.255.0

access-list 102 per ip 10.30.30.0 255.255.255.0 10.20.20.0 255.255.255.0

Rate this topic, if it helps.

Cheers

Gilbert

Gilbert,

Thanks. It's clear.

One more thing about the command "management-access", is that possible to use this command for the remote Spoke1 to send trap back to the Hub site via VPN tunnel? Based on the command reference, it just list-out the following feature support (no snmp trap):

?SNMP polls to the mgmt_if

?HTTPS requests to the mgmt_if

?PDM access to the mgmt_if

?Telnet access to the mgmt_if

?SSH access to the mgmt_if

?Ping to the mgmt_if

Rgds,

Tony

Gilbert,

Any information regarding the snmp trap back to the core via VPN tunnel?

Tony