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ASR 1002 IPSec NGE algorithms support

Hello!

We have ASR1002-5G-SEC/K9

 

We have to configure IPSec VPN vith such parameters

 

!

crypto isakmp policy 15

encr aes 256

hash sha256

authentication pre-share

group 5

lifetime 7200

!

crypto ipsec transform-set Profil esp-aes 256 esp-sha256-hmac

mode tunnel

!

But it did not work until we changed transform-set to esp-aes 256 esp-sha-hmac (esp-sha256-hmac)

We see message crypto_engine_select_crypto_engine: can't handle any more

 

We try to use ikev2 to test with 2 ASR's

crypto ikev2 proposal ikev2proposal

encryption aes-cbc-256

integrity sha256

group 5

!

crypto ikev2 policy ikev2policy

match fvrf any

proposal ikev2proposal

!

crypto ikev2 keyring keys

peer ASR1002A

  address 192.168.xxx.130

  pre-shared-key local cisco

  pre-shared-key remote cisco

!

crypto ikev2 profile ikev2profile

match identity remote address 192.168.xxx.130 255.255.255.248

authentication remote pre-share

authentication local pre-share

keyring local keys

!

crypto ipsec transform-set Profil esp-aes 256 esp-sha256-hmac

mode tunnel

!

crypto map SSB 2 ipsec-isakmp

set peer 192.168.xxx.130

set transform-set Profil

set pfs group5

set ikev2-profile ikev2profile

match address PTB_vpn

!

ip access-list extended PTB_vpn

permit icmp host 192.168.xxx.132 host 192.168.xxx.130

!

interface GigabitEthernet0/0/1.552

d encapsulation dot1Q 552

ip address 192.168.xxx.132 255.255.255.248

no ip proxy-arp

crypto map SSB

 

But the situation is same. It do not work until we change esp-sha256-hmac to esp-sha-hmac

 

Dec 15 19:57:22.783: IPSEC:(SESSION ID = 113) (key_engine) request timer fired: count = 3,

  (identity) local= 192.168.xxx.130:0, remote= 192.168.xxx.132:0,

    local_proxy= 192.168.xxx.130/255.255.255.255/1/0,

    remote_proxy= 192.168.xxx.132/255.255.255.255/1/0

Dec 15 19:57:22.783: IPSEC(sa_request): ,

  (key eng. msg.) OUTBOUND local= 192.168.xxx.130:500, remote= 192.168.xxx.132:500,

    local_proxy= 192.168.xxx.130/255.255.255.255/1/0,

    remote_proxy= 192.168.xxx.132/255.255.255.255/1/0,

    protocol= ESP, transform= esp-aes 256 esp-sha256-hmac  (Tunnel),

    lifedur= 3600s and 4608000kb,

    spi= 0x0(0), conn_id= 0, keysize= 256, flags= 0x0

Dec 15 19:57:22.784: crypto_engine: Create DH

Dec 15 19:57:22.813: crypto_engine: Create DH shared secret

Dec 15 19:57:22.817: crypto_engine: Create IKEv2 SA

Dec 15 19:57:22.817: crypto engine: deleting DH phase 2 SW:172

Dec 15 19:57:22.817: crypto_engine: Delete DH shared secret

Dec 15 19:57:22.817: crypto_engine: Generate IKEv2 auth

Dec 15 19:57:22.817: crypto_engine: Encrypt IKEv2 packet

Dec 15 19:57:22.818: crypto_engine: Generate IKEv2 hash

Dec 15 19:57:22.843: crypto_engine: Generate IKEv2 hash

Dec 15 19:57:22.843: crypto_engine: Decrypt IKEv2 packet

Dec 15 19:57:22.852: crypto_engine: Generate IKEv2 auth

Dec 15 19:57:22.864: IPSEC(key_engine): got a queue event with 1 KMI message(s)

Dec 15 19:57:22.864: IPSEC(validate_proposal_request): proposal part #1

Dec 15 19:57:22.864: IPSEC(validate_proposal_request): proposal part #1,

  (key eng. msg.) INBOUND local= 192.168.xxx.130:0, remote= 192.168.xxx.132:0,

    local_proxy= 192.168.xxx.130/255.255.255.255/1/0,

    remote_proxy= 192.168.xxx.132/255.255.255.255/1/0,

    protocol= ESP, transform= esp-aes 256 esp-sha256-hmac  (Tunnel),

    lifedur= 0s and 0kb,

    spi= 0x0(0), conn_id= 0, keysize= 256, flags= 0x0

Dec 15 19:57:22.864: Crypto mapdb : proxy_match

                src addr     : 192.168.xxx.130

                dst addr     : 192.168.xxx.132

                protocol     : 1

                src port     : 0

                dst port     : 0

Dec 15 19:57:22.864: (ipsec_process_proposal)Map Accepted: SSB, 2

Dec 15 19:57:22.879: IPSEC(key_engine): got a queue event with 1 KMI message(s)

Dec 15 19:57:22.879: Crypto mapdb : proxy_match

                src addr     : 192.168.xxx.130

                dst addr     : 192.168.xxx.132

                protocol     : 1

                src port     : 0

                dst port     : 0

Dec 15 19:57:22.879: IPSEC:(SESSION ID = 113) (crypto_ipsec_create_ipsec_sas) Map found SSB, 2

Dec 15 19:57:22.879: crypto_engine_select_crypto_engine: can't handle any more

Dec 15 19:57:22.880: crypto_engine_select_crypto_engine: can't handle any more

Dec 15 19:57:22.880: crypto_engine_ipsec_key_create_by_qmv2: no IPSec engine

Dec 15 19:57:22.880: IPSEC:(SESSION ID = 113) (get_old_outbound_sa_for_peer) No outbound SA found for peer 3E52F33C

Dec 15 19:57:22.880: IPSEC:(SESSION ID = 113) (update_current_outbound_sa) updated peer 192.168.xxx.132 current outbound sa to SPI 0

Dec 15 19:57:22.880: IPSEC(send_delete_notify_kmi): ASSERT FAILED: Decrement count mismatch for sibling :442204F4

Dec 15 19:57:22.880: IPSEC(send_delete_notify_kmi): not sending KEY_ENGINE_DELETE_SAS

Dec 15 19:57:22.880: crypto engine: deleting IPSec SA ???

Dec 15 19:57:22.880: delete_ipsec_sa: no such crypto engine

Dec 15 19:57:22.880: crypto engine: deleting IPSec SA ???

Dec 15 19:57:22.880: delete_ipsec_sa: no such crypto engine

 

 

IOS version - asr1000rp1-adventerprisek9.03.10.04.S.153-3.S4-ext.bin

 

sh crypto engine br

 

        crypto engine name:  Cisco VPN Software Implementation

        crypto engine type:  software

             serial number:  FF99B796

       crypto engine state:  installed

     crypto engine in slot:  N/A

 

sh crypto eli

Hardware Encryption : ACTIVE

Number of hardware crypto engines = 1

 

CryptoEngine IOSXE-ESP(14) details: state = Active

Capability    : DES, 3DES, AES, RSA, IPv6, GDOI, FAILCLOSE

 

IPSec-Session :   320 active, 32766 max, 0 failed

 

 

sh platform

Chassis type: ASR1002

 

Slot      Type                State                 Insert time (ago)

--------- ------------------- --------------------- -----------------

0         ASR1002-SIP10       ok                    2d23h

0/0      4XGE-BUILT-IN       ok                    2d22h

0/2      SPA-4X1FE-TX-V2     ok                    2d22h

R0        ASR1002-RP1         ok, active            2d23h

F0        ASR1000-ESP5        ok, active            2d23h

P0        ASR1002-PWR-AC      ok                    2d23h

P1        ASR1002-PWR-AC      ok                    2d23h

 

Slot      CPLD Version        Firmware Version

--------- ------------------- ---------------------------------------

0         07120202            12.2(33r)XNC

R0        08011017            12.2(33r)XNC

F0        07091401            12.2(33r)XNB

 

show crypto ace slot 14 stat | inc status

ACE status: ONLINE

 

Could you please hel us to undestand why IPSec do not work with crypto ipsec transform-set Profil esp-aes 256 esp-sha256-hmac

 

Thank you!

 

 

 

4 Replies 4

Marcin Latosiewicz
Cisco Employee
Cisco Employee

http://www.cisco.com/c/en/us/support/docs/security-vpn/ipsec-negotiation-ike-protocols/116055-technote-ios-crypto.html

Support for NGE control plane (ECDH and ECDSA) has been introduced with XE37. Control plane SHA-2 support is for IKEv2 only (with planned IKEv1 support for XE3.10). Dataplane support is added in XE3.8 for Octeon based platforms (ASR1002-X and ESP100).

 

and CSCtn18426

 

I think you need to go for 15.3.3s 

Hello, Marcin

Thank you for your reply!

We used asr1000rp1-adventerprisek9.03.10.04.S.153-3.S4-ext.bin. It is 15.3.3s, correct?

We tried with asr1000rp1-adventerprisek9.03.13.01.S.154-3.S1-ext.bin, result was same.

Thank you for the information regarding CSCtn18426. But we tried with ikev2, result was same.

 

 

The answer from Cisco TAC - ASR1002-5G-SEC/K9 does not support NGE. You mast have ASR1002x or ESP100.

 

Comment. We tried NGE with ISR 2821, NGE work.

Hi Marcin,

DMVPN does not establish using SHA 256. (works fine with SHA-1)

Is SHA-256 supported now on ASR 1004?

HW: Cisco ASR1004 (RP2) processor (revision RP2) with 4164879K/6147K bytes of memory.

SW:
Cisco IOS XE Software, Version 03.13.04.S - Extended Support Release
Cisco IOS Software, ASR1000 Software (X86_64_LINUX_IOSD-ADVENTERPRISEK9-M), Version 15.4(3)S4, RELEASE SOFTWARE (fc3)
System image file is "bootflash:asr1000rp2-adventerprisek9.03.13.04.S.154-3.S4-ext.bi"

Config:
crypto isakmp policy 20
 encr aes 256
 hash sha256
 group 14

crypto ipsec transform-set ESP-AES256-SHA256 esp-aes 256 esp-sha256-hmac
 mode transport require

Thx in advance for clarification!