A possible bug related to the Cisco ASA "show access-list"?
We encountered a strange problem in our ASA configuration.
In the "show running-config":
access-list inside_access_in remark CM000067 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:http_access
access-list inside_access_in remark CM000458 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:https_access
access-list inside_access_in remark test 11111111111111111111111111 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security
access-list inside_access_in extended permit tcp host 1.1.1.1 host 192.168.20.86 eq 81 log
access-list inside_access_in remark CM000260 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:netbios-dgm
access-list inside_access_in remark CM006598 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:netbios-ns
access-list inside_access_in remark CM000220 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:netbios-ssn
access-list inside_access_in remark CM000223 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:tcp/445
access-list inside_access_in extended permit tcp 172.31.254.0 255.255.255.0 any eq www log
access-list inside_access_in extended permit tcp 172.31.254.0 255.255.255.0 any eq https log
access-list inside_access_in extended permit udp 172.31.254.0 255.255.255.0 any eq netbios-dgm log
access-list inside_access_in extended permit udp 172.31.254.0 255.255.255.0 any eq netbios-ns log
access-list inside_access_in extended permit tcp 172.31.254.0 255.255.255.0 any eq netbios-ssn log
access-list inside_access_in extended permit tcp 172.31.254.0 255.255.255.0 any eq 445 log
access-list inside_access_in remark CM000280 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:domain
access-list inside_access_in extended permit tcp object 172.31.254.2 any eq domain log
access-list inside_access_in extended permit udp object 172.31.254.2 any eq domain log
access-list inside_access_in remark CM000220 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:catch_all
access-list inside_access_in extended permit ip object 172.31.254.2 any log
access-list inside_access_in remark CM0000086 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:SSH_internal
access-list inside_access_in extended permit tcp 172.31.254.0 255.255.255.0 interface inside eq ssh log
access-list inside_access_in remark CM0000011 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:PortRange
access-list inside_access_in extended permit object TCPPortRange 172.31.254.0 255.255.255.0 host 192.168.20.91 log
access-list inside_access_in remark CM0000012 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:FTP
access-list inside_access_in extended permit tcp object inside_range range 1024 45000 host 192.168.20.91 eq ftp log
access-list inside_access_in remark CM0000088 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:PortRange
access-list inside_access_in extended permit ip 192.168.20.0 255.255.255.0 any log
access-list inside_access_in remark CM0000014 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:DropIP
access-list inside_access_in extended permit ip object windowsusageVM any log
access-list inside_access_in extended permit ip any object testCSM-object
access-list inside_access_in extended permit ip 172.31.254.0 255.255.255.0 any log
access-list inside_access_in remark CM0000065 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:IP
access-list inside_access_in extended permit ip host 172.31.254.2 any log
access-list inside_access_in remark CM0000658 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security
access-list inside_access_in extended permit tcp host 192.168.20.95 any eq www log
In the "show access-list":
access-list inside_access_in line 1 remark CM000067 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:http_access
access-list inside_access_in line 2 remark CM000458 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:https_access
access-list inside_access_in line 3 remark test 11111111111111111111111111 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security
access-list inside_access_in line 4 extended permit tcp host 1.1.1.1 host 192.168.20.86 eq 81 log informational interval 300 (hitcnt=0) 0x0a 3bacc1
access-list inside_access_in line 5 remark CM000260 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:netbios-dgm
access-list inside_access_in line 6 remark CM006598 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:netbios-ns
access-list inside_access_in line 7 remark CM000220 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:netbios-ssn
access-list inside_access_in line 8 remark CM000223 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:tcp/445
access-list inside_access_in line 9 extended permit tcp 172.31.254.0 255.255.255.0 any eq www log informational interval 300 (hitcnt=0) 0x06 85254a
access-list inside_access_in line 10 extended permit tcp 172.31.254.0 255.255.255.0 any eq https log informational interval 300 (hitcnt=0) 0 x7e7ca5a7
access-list inside_access_in line 11 extended permit udp 172.31.254.0 255.255.255.0 any eq netbios-dgm log informational interval 300 (hitcn t=0) 0x02a111af
access-list inside_access_in line 12 extended permit udp 172.31.254.0 255.255.255.0 any eq netbios-ns log informational interval 300 (hitcnt =0) 0x19244261
access-list inside_access_in line 13 extended permit tcp 172.31.254.0 255.255.255.0 any eq netbios-ssn log informational interval 300 (hitcn t=0) 0x0dbff051
access-list inside_access_in line 14 extended permit tcp 172.31.254.0 255.255.255.0 any eq 445 log informational interval 300 (hitcnt=0) 0x7 b798b0e
access-list inside_access_in line 15 remark CM000280 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:domain
access-list inside_access_in line 16 extended permit tcp object 172.31.254.2 any eq domain log informational interval 300 (hitcnt=0) 0x6c416 81b
access-list inside_access_in line 16 extended permit tcp host 172.31.254.2 any eq domain log informational interval 300 (hitcnt=0) 0x6c416 81b
access-list inside_access_in line 17 extended permit udp object 172.31.254.2 any eq domain log informational interval 300 (hitcnt=0) 0xc53bf 227
access-list inside_access_in line 17 extended permit udp host 172.31.254.2 any eq domain log informational interval 300 (hitcnt=0) 0xc53bf 227
access-list inside_access_in line 18 remark CM000220 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:catch_all
access-list inside_access_in line 19 extended permit ip object 172.31.254.2 any log informational interval 300 (hitcnt=0) 0xd063707c
access-list inside_access_in line 19 extended permit ip host 172.31.254.2 any log informational interval 300 (hitcnt=0) 0xd063707c
access-list inside_access_in line 20 remark CM0000086 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:SSH_internal
access-list inside_access_in line 21 extended permit tcp 172.31.254.0 255.255.255.0 interface inside eq ssh log informational interval 300 (hitcnt=0) 0x4951b794
access-list inside_access_in line 22 remark CM0000011 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:PortRange
access-list inside_access_in line 23 extended permit object TCPPortRange 172.31.254.0 255.255.255.0 host 192.168.20.91 log informational interval 300 (hitcnt=0) 0x441e6d68
access-list inside_access_in line 23 extended permit tcp 172.31.254.0 255.255.255.0 host 192.168.20.91 range ftp smtp log informational interval 300 (hitcnt=0) 0x441e6d68
access-list inside_access_in line 24 remark CM0000012 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:FTP
access-list inside_access_in line 25 extended permit tcp object inside_range range 1024 45000 host 192.168.20.91 eq ftp log informational interval 300 0xe848acd5
access-list inside_access_in line 25 extended permit tcp range 12.89.235.2 12.89.235.5 range 1024 45000 host 192.168.20.91 eq ftp log informational interval 300 (hitcnt=0) 0xe848acd5
access-list inside_access_in line 26 extended permit ip 192.168.20.0 255.255.255.0 any log informational interval 300 (hitcnt=0) 0xb6c1be37
access-list inside_access_in line 27 remark CM0000014 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:DropIP
access-list inside_access_in line 28 extended permit ip object windowsusageVM any log informational interval 300 (hitcnt=0) 0x22170368
access-list inside_access_in line 28 extended permit ip host 172.31.254.250 any log informational interval 300 (hitcnt=0) 0x22170368
access-list inside_access_in line 29 extended permit ip any object testCSM-object (hitcnt=0) 0xa3fcb334
access-list inside_access_in line 29 extended permit ip any host 255.255.255.255 (hitcnt=0) 0xa3fcb334
access-list inside_access_in line 30 extended permit ip 172.31.254.0 255.255.255.0 any log informational interval 300 (hitcnt=0) 0xe361b6ed
access-list inside_access_in line 31 remark CM0000065 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:IP
access-list inside_access_in line 32 extended permit ip host 172.31.254.2 any log informational interval 300 (hitcnt=0) 0xed7670e1
access-list inside_access_in line 33 remark CM0000658 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security
access-list inside_access_in line 34 extended permit tcp host 192.168.20.95 any eq www log informational interval 300 (hitcnt=0) 0x8d07d70b
There is a comment in the running config: (line 26)
access-list inside_access_in remark CM0000088 EXP:1/16/2014 OWN:IT_Security BZU:Network_Security JST:PortRange
This comment is missing in "show access-list". So in the access list, for all the lines after this comment, the line number is no longer correct. This causes problem when we try to use line number to insert a new rule.
Has anybody seen this problem before? Is this a known problem? I am glad to provide more information if needed.
Thanks in advance.
show version:
Cisco Adaptive Security Appliance Software Version 8.4(4)1
Device Manager Version 7.1(3)
Compiled on Thu 14-Jun-12 11:20 by builders
System image file is "disk0:/asa844-1-k8.bin"
Config file at boot was "startup-config"
fmciscoasa up 1 hour 56 mins
Hardware: ASA5505, 512 MB RAM, CPU Geode 500 MHz
Internal ATA Compact Flash, 128MB
BIOS Flash M50FW016 @ 0xfff00000, 2048KB
Encryption hardware device : Cisco ASA-5505 on-board accelerator (revision 0x0)
Boot microcode : CN1000-MC-BOOT-2.00
SSL/IKE microcode: CNLite-MC-SSLm-PLUS-2.03
IPSec microcode : CNlite-MC-IPSECm-MAIN-2.06
Number of accelerators: 1
Could be related to the following bug:
CSCtq12090: ACL remark line is missing when range object is configured in ACL
Fixed in 8.4(6), so update to a newer version and observe it again.
Don't stop after you've improved your network! Improve the world by lending money to the working poor:
http://www.kiva.org/invitedby/karsteni
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After a while like 5-10 min the vpn site to site tunnel is up and here is the strange thing happening I have all accesslists and tunnel accesslists right I can only access one remote network (Main site Clavister Firewall) trought the vpn tunnel behind the Cisco ASA 5505, and I have 5 more remote networks that I want to access but only one remote network is working trought the vpn tunnel behind the Cisco ASA. I see that when I do this syntax in ASA: show crypto ipsec sa.
They had a Clavister Firewall before on that site before and now they have a Cisco ASA 5505 and all the rules on the main site thats have the big Clavister Firewall is intact so the problems are in the Cisco ASA 5505.
Here is some logs that ASDM give me about the tunnel issue, but like I said, the tunnel is up and only one remote network is reachable in that tunnel.....
3
Nov 21 2012
07:11:09
713902
Group = 195.149.180.254, IP = 195.149.169.254, Removing peer from correlator table failed, no match!
3
Nov 21 2012
07:11:09
713902
Group = 195.149.180.254, IP = 195.149.169.254, QM FSM error (P2 struct &0xc92462d0, mess id 0x1c6bf927)!
3
Nov 21 2012
07:11:09
713061
Group = 195.149.180.254, IP = 195.149.169.254, Rejecting IPSec tunnel: no matching crypto map entry for remote proxy 0.0.0.0/0.0.0.0/0/0 local proxy 0.0.0.0/0.0.0.0/0/0 on interface outside
5
Nov 21 2012
07:11:09
713119
Group = 195.149.180.254, IP = 195.149.169.254, PHASE 1 COMPLETED
Here is from the syntax: show crypto isakmp sa
Result of the command: "show crypto isakmp sa"
Active SA: 1
Rekey SA: 0 (A tunnel will report 1 Active and 1 Rekey SA during rekey)
Total IKE SA: 1
1 IKE Peer: 195.149.180.254
Type : L2L Role : responder
Rekey : no State : MM_ACTIVE
Result of the command: "show crypto ipsec sa"
interface: outside
Crypto map tag: CustomerCryptoMap, seq num: 10, local addr: 213.180.90.29
access-list arvika_garnisonen permit ip 172.22.65.0 255.255.255.0 192.168.123.0 255.255.255.0
local ident (addr/mask/prot/port): (172.22.65.0/255.255.255.0/0/0)
remote ident (addr/mask/prot/port): (192.168.123.0/255.255.255.0/0/0)
current_peer:195.149.180.254
#pkts encaps: 2188, #pkts encrypt: 2188, #pkts digest: 2188
#pkts decaps: 2082, #pkts decrypt: 2082, #pkts verify: 2082
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 2188, #pkts comp failed: 0, #pkts decomp failed: 0
#pre-frag successes: 0, #pre-frag failures: 0, #fragments created: 0
#PMTUs sent: 0, #PMTUs rcvd: 0, #decapsulated frgs needing reassembly: 0
#send errors: 0, #recv errors: 0
local crypto endpt.: 213.180.67.29, remote crypto endpt.: 195.149.180.254
path mtu 1500, ipsec overhead 74, media mtu 1500
current outbound spi: E715B315
inbound esp sas:
spi: 0xFAC769EB (4207372779)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, PFS Group 5, }
slot: 0, conn_id: 2879488, crypto-map: CustomerCryptoMap
sa timing: remaining key lifetime (kB/sec): (38738/2061)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0xFFFFFFFF 0xFFFFFFFF
outbound esp sas:
spi: 0xE715B315 (3876958997)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, PFS Group 5, }
slot: 0, conn_id: 2879488, crypto-map: CustomerCryptoMap
sa timing: remaining key lifetime (kB/sec): (38673/2061)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x00000001
And here are my Accesslists and vpn site to site config:
crypto isakmp enable outside
crypto isakmp policy 10
authentication pre-share
encryption aes-256
hash sha
group 5
lifetime 84600
crypto isakmp nat-traversal 40
crypto ipsec transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac
crypto ipsec security-association lifetime seconds 28800
crypto ipsec security-association lifetime kilobytes 4608000
crypto map CustomerCryptoMap 10 match address VPN_Tunnel
crypto map CustomerCryptoMap 10 set pfs group5
crypto map CustomerCryptoMap 10 set peer 195.149.180.254
crypto map CustomerCryptoMap 10 set transform-set ESP-AES-256-SHA
crypto map CustomerCryptoMap interface outside
access-list VPN_Tunnel extended permit ip 172.22.65.0 255.255.255.0 192.168.123.0 255.255.255.0 -------> This is the only remote network I can reach behind the Cisco ASA and the other remote networks dont work..
access-list VPN_Tunnel extended permit ip 172.22.65.0 255.255.255.0 host 10.1.34.5
access-list VPN_Tunnel extended permit ip 172.22.65.0 255.255.255.0 host 10.1.20.76
access-list VPN_Tunnel extended permit ip 172.22.65.0 255.255.255.0 host 62.88.129.221
access-list VPN_Tunnel extended permit ip 172.22.65.0 255.255.255.0 172.22.71.0 255.255.255.0
access-list nonat extended permit ip 172.22.65.0 255.255.255.0 192.168.123.0 255.255.255.0
access-list nonat extended permit ip 172.22.65.0 255.255.255.0 host 10.1.34.5
access-list nonat extended permit ip 172.22.65.0 255.255.255.0 host 10.1.20.76
access-list nonat extended permit ip 172.22.65.0 255.255.255.0 host 62.88.129.221
access-list nonat extended permit ip 172.22.65.0 255.255.255.0 172.22.71.0 255.255.255.0
nat (inside) 0 access-list nonat
All these remote networks are at the Main Site Clavister Firewall.
Best Regards
MichaelHi,
I'd start by getting the configuration of the remote site related to Local/Remote network configurations and go through them. Even though no changes have been made.
If they are mirror images of eachother already I'd say its probably some problem related to Cisco/Clavister setup
Seems especially wierd to me that one of the error messages includes 0.0.0.0 lines.
I have run into some problems with L2L VPN configurations when our Cisco device just doesnt want to work with the remote end device. In some cases we have confirmed that our networks defined for the L2L VPN are exactly the same and yet when checking debugs on the ASA side we can see the remote end device using totally wrong network masks for the VPN negotiaton and therefore it failed. That problem we corrected with changing the network masks a bit.
Maybe you could try to change the Encryption Domain configurations a bit and test it then.
You could also maybe take some debugs on the Phase2 and see if you get anymore hints as to what could be the problem when only one network is working for the L2L VPN.
- Jouni
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