On DMVPNs selective IPSec encryption

Hello

I have a DMVPN with two rays on a MPLS-L3-IPVPN network. IPSec over GRE profiles using crypto. Works very well. Now, he only need to encrypt all traffic except EF DSCP. Tried with the help of ACB defining IP-Next Hop for EF-packages and just normal dug routing for all other types of traffic.

My question is, I know cryptographic cards that use ACLs can selectively encrypt traffic through the IPSec/GRE tunnels. Cryptographic profiles don't seem to have this feature. Is there another way to do this?

A snip Config by couple spoke it as below.

===============

interface GigabitEthernet0/0.1
DESC LAN i / f
IP 10.10.10.1 255.255.255.0
political intellectual property map route ACB

interface Tunnel100
IP 172.16.254.13 255.255.254.0
no ip redirection
property intellectual PNDH card 172.16.254.1 103.106.169.10
map of PNDH IP multicast 103.106.169.10
PNDH network IP-1 id
property intellectual PNDH nhs 172.16.254.1
property intellectual shortened PNDH
KeepAlive 10 3
source of tunnel GigabitEthernet0/1.401
multipoint gre tunnel mode
key 1 tunnel
Profile of tunnel DMVPN-Crypto ipsec protection
end

GIE Router 1
no car
NET 172.16.254.0 0.0.1.255
EIGRP log-neighbor-warnings
EIGRP log-neighbor-changes
! - router id
NET 10.10.10.0 0.0.0.255

ACB allowed 10 route map
ACB match ip address
IP 11.2.100.2 jump according to the value
!
ACB allowed 20 route map

ACB extended IP access list
permit icmp host 10.10.10.5 host 15.1.1.1 dscp ef
allow icmp host 10.10.10.5 host 15.1.1.1 dscp 41
deny ip any any newspaper

===============

Note: the routing table contains only a default route learned via EIGRP. Thus, if the ACB 10 past, policy would transmit to the Next-hop (PE). Or would otherwise use 0/0 and route thro' the tunnel.

Thanks in advance!

See you soon
Aravind

With DMVPN, no.  You will need to return to the use of just cryptographic cards, only using access lists to control what is and is not encrypted.

If the "EF" traffic was dedicated VoIP subnets so you would have more options, you can choose everything just don't not to route these subnets above the Tunnel.

Tags: Cisco Security

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    Some time ago, I wrote a bit on VT, you should be able to find information about the server ezvpn DVTI it.

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    --
    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

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    Kind regards

    Robert

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