Configuring VPN Site-to-site Cisco 800 series

On the main config, i think the transform-set is missing on the first crypto-map statement:

crypto map SDM_CMAP_1 1 ipsec-isakmp
 set peer 194.200.30.30
 match address ETTunnel
crypto map SDM_CMAP_1 10 ipsec-isakmp
 set peer 194.200.30.20
 set transform-set ESP-3DES-SHA1
 match address EJTunnel

Also, the ACLs need to be mirrored, "any" won't be good:

Like on branch1:
 permit ip 10.9.9.0 0.0.0.255 10.9.8.0 0.0.0.255

Not like on branch2:
 permit ip 10.9.6.0 0.0.0.255 any

Hope it helps!

Tamas

Thanks for your reply,

but the upper crypto map without set transform is the working one. (ETTunnel is working and EJTunnel is not).Crypto map SDM_CMAP_1 10 ipsec-isakmp is not working and I also thought about mirroring ACL-s, but in that case the tunnel wont come up at all.

If you have any more suggestions, I'd be happy to hear them out.

Can you post sh crypto isakmp and ipsec outputs?

outputs before mirroring ACL-s (from branch 2):

'sh cry isa sh' :

IPv4 Crypto ISAKMP SA
dst             src             state          conn-id slot status
194.200.30.10   194.200.30.20  QM_IDLE           1016    0 ACTIVE

'sh cry ipsec sa':

interface: FastEthernet4
    Crypto map tag: SDM_CMAP_1, local addr 194.204.11.140

   protected vrf: (none)
   local  ident (addr/mask/prot/port): (10.9.6.0/255.255.255.0/0/0)
   remote ident (addr/mask/prot/port): (0.0.0.0/0.0.0.0/0/0)
   current_peer 194.200.30.10 port 500
     PERMIT, flags={origin_is_acl,ipsec_sa_request_sent}
    #pkts encaps: 0, #pkts encrypt: 0, #pkts digest: 0
    #pkts decaps: 0, #pkts decrypt: 0, #pkts verify: 0
    #pkts compressed: 0, #pkts decompressed: 0
    #pkts not compressed: 0, #pkts compr. failed: 0
    #pkts not decompressed: 0, #pkts decompress failed: 0
    #send errors 115, #recv errors 0

     local crypto endpt.: 194.209.30.20, remote crypto endpt.: 194.200.30.10
     path mtu 1500, ip mtu 1500
     current outbound spi: 0x0(0)

     inbound esp sas:

     inbound ah sas:

     inbound pcp sas:

     outbound esp sas:

     outbound ah sas:

     outbound pcp sas:

'sh cry session ' :

Session status: UP-IDLE
Peer: 194.200.30.10 port 500
  IKE SA: local 194.200.30.20/500 remote 194.200.30.10/500 Active
  IKE SA: local 194.200.30.20/500 remote 194.200.30.10/500 Inactive
  IPSEC FLOW: permit ip 10.9.6.0/255.255.255.0 0.0.0.0/0.0.0.0
        Active SAs: 0, origin: crypto map

Errors:

*Aug  2 11:54:34.846: IPSEC(key_engine): request timer fired: count = 1,
  (identity) local= 194.200.30.20, remote= 194.200.30.10,
    local_proxy= 10.9.6.0/255.255.255.0/0/0 (type=4),
    remote_proxy= 0.0.0.0/0.0.0.0/0/0 (type=4)
*Aug  2 11:54:34.846: IPSEC(sa_request): ,
  (key eng. msg.) OUTBOUND local= 194.204.30.20, remote= 194.200.30.10,
    local_proxy= 10.9.6.0/255.255.255.0/0/0 (type=4),
    remote_proxy= 0.0.0.0/0.0.0.0/0/0 (type=4),
    protocol= ESP, transform= NONE  (Tunnel),
estanc-Jyrih#
    lifedur= 86400s and 4608000kb,
    spi= 0xF4A16C94(4104219796), conn_id= 0, keysize= 0, flags= 0x0
*Aug  2 11:54:34.870: ISAKMP:(1016):deleting node -1398252712 error TRUE reason "Delete Larval"


Outputs after mirroring ACL-s (from branchs 2):

'sh cry isa sa'

IPv4 Crypto ISAKMP SA
dst             src             state          conn-id slot status

sh cry ipsec sa is the same

'sh cry session'

Interface: FastEthernet4
Session status: DOWN
Peer: 194.200.30.10 port 500
  IPSEC FLOW: permit ip 10.9.6.0/255.255.255.0 10.9.8.0/255.255.255.0
        Active SAs: 0, origin: crypto map

Errors:

*Aug  2 12:02:55.830: No peer struct to get peer description

In case of mirrored ACL, in "sh cry ipsec sa" even these 2 lines:

   local  ident (addr/mask/prot/port): (10.9.6.0/255.255.255.0/0/0)
   remote ident (addr/mask/prot/port): (0.0.0.0/0.0.0.0/0/0)

are the same?

in case of mirrored ACL, in 'sh cry ipsec sa' :


Crypto map tag: SDM_CMAP_1, local addr 194.200.30.20

   protected vrf: (none)
   local  ident (addr/mask/prot/port): (10.9.6.0/255.255.255.0/0/0)
   remote ident (addr/mask/prot/port): (10.9.8.0/255.255.255.0/0/0)
   current_peer 194.200.30.10 port 500
     PERMIT, flags={origin_is_acl,}
    #pkts encaps: 0, #pkts encrypt: 0, #pkts digest: 0
    #pkts decaps: 0, #pkts decrypt: 0, #pkts verify: 0
    #pkts compressed: 0, #pkts decompressed: 0
    #pkts not compressed: 0, #pkts compr. failed: 0
    #pkts not decompressed: 0, #pkts decompress failed: 0
    #send errors 0, #recv errors 0

     local crypto endpt.: 194.200.30.20, remote crypto endpt.: 194.200.30.10
     path mtu 1500, ip mtu 1500
     current outbound spi: 0x0(0)

     inbound esp sas:

     inbound ah sas:

     inbound pcp sas:

     outbound esp sas:

     outbound ah sas:

     outbound pcp sas:

No new ideas so far... Any debug info from the main site?

No new debug info from the main site - when i mirror the ACL-s i can't retrieve any useful info from the debug commands, but when i use the  "permit ip 10.9.6.0 0.0.0.255 any" from branch 2, the tunnel seem to go up, but still I don't see any packets going through the ipsec sa.

Now I got my VPN tunnel up, but I can't ping PC-s from either side. Do I need to add another access-list on my VLan1 or does someone have any better ideas?

Next time please share the NAT config too... :)
Anyway, glad it works.

Tamas

Because it was the solution that worked. Without this, my traffic was being nat-ed.