GETVPN - problem

Hello

I am trying to run GETVPN on small test network. I have three routers:

R1 - like KS

R3 R4 & as a Member

R1 config:

crypto ISAKMP policy 10

BA aes

md5 hash

preshared authentication

Group 2

ISAKMP crypto cisco123 key address 0.0.0.0 0.0.0.0

!

!

Crypto ipsec transform-set GET aes - esp esp-sha-hmac

!

Crypto ipsec GET profile

transformation-GET game

!

gdoi crypto group GET

Identification number 1

local server

recomposition of the seconds of life 300

generate a new key broadcast 10 number 2

generate a new passkey mypubkey rsa R1.test.com

generate a new key transport unicast

its ipsec 1

GET profile

match 150 ipv4 addresses

window-size 64 meter reading

ipv4 10.0.0.1 address

interface FastEthernet0/0

the IP 10.0.0.1 255.255.255.0

half duplex

Config of R3:

crypto ISAKMP policy 10

BA aes

md5 hash

preshared authentication

Group 2

ISAKMP crypto cisco123 key address 0.0.0.0 0.0.0.0

!

!

gdoi crypto group GET

Identification number 1

Server address 10.0.0.1 ipv4

!

!

GET 10 gdoi crypto card

set the Group GET

interface FastEthernet0/0

IP 10.0.0.3 255.255.255.0

half duplex

GET crypto card

View orders:

R1 #sh crypto gdoi

Group information

Group name: GET

Group identity: 1

Group members: 2

The IPSec Security Association Management: both

Active Server Group: Local

Group life to generate a new key: 300 seconds

Generate a new key Group

Remaining life: dry 189

Period to generate a new key of retransmission: dry 10

Recomposition of retransmission attempts: 2

Retransmission of group

Remaining life: 0 seconds

Many IPSec security association: 1

Life to generate a new IPSec SA key: 3600 seconds

Profile name: GET

Method of proofreading: County based

Re-read the window size: 64

Generate a new key, SA

Remaining life: dry 1390

Configured ACL: access-list 150

List of servers in Group: Local

and

R4 #sh crypto gdoi

Group information

Group name: GET

Group identity: 1

New keys generated received: 0

The IPSec Security Association Management: both

ACL received between KS: gdoi_group_GET_temp_acl

Active Server Group: 10.0.0.1

List of servers in Group: 10.0.0.1

R4 #.

I received an error message:

* 19:05:17.691 Apr 16: % CRYPTO-4-RECVD_PKT_NOT_IPSEC: Rec'd package not an IPSEC packet.

(ip) vrf/adr_dest = 10.0.0.4 src_addr = 10.0.0.1, prot = 17

R4(Config-if) #.

You have an idea what is the problem?

Hello Hubert,.

The reason is as follows.

New generated keys are sent via udp on port 848. Since they are encrypted by CEC [but not by TEK], the router cannot decipher when IPSEC is looking.

In fact, your policy of KS should look like:

Access-list 150 deny udp any any eq 848

150 ip access list allow a whole

Tags: Cisco Security

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    Try changing the command "generate a new passkey mypubkey rsa GROUP_KEY" to "generate a new key mypubkey rsa authentication".

    KEY-2. GETVPN.com ".

    Or generate another set of key with the name GROUP_KEY

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