Blocking IPs Not Working

[beatinger]

Hello Cisco users,

I added the following line to my ASA 5540 firewall:

access-list outside_access_in extended deny ip host 65.197.196.0 any

This is the LAST statement in my list of permitted IP/ports.

Unfortunately, Peerblock v1.2 on our Windows 2019 server, still shows this IP as hammering the machine at a very high rate.

How is this possible?  Any ideas on how to get this (and other IPs) blocked from my network?

Here is the complete configuration:

: Saved
:
: Serial Number: JMX1112L1JH
: Hardware: ASA5540-K8, 2560 MB RAM, CPU Pentium 4 2000 MHz
: Written by enable_15 at 07:53:33.114 UTC Tue Jun 16 2020
!
ASA Version 9.1(7)32
!
hostname ciscoasa5540
domain-name edenhosting.net
enable password Vkz0vtCccFeMll8t encrypted
passwd Vkz0vtCccFeMll8t encrypted
names
name 10.1.252.219 Sendmail description OLD Mail Server (92)
name 10.1.252.247 ExchangeServer description Exchange Server 2016 (94)
name 10.1.252.249 WebServerIIS80 description Windows Server 2012 (93)
name 10.1.252.191 DRAC-WebServer description DRAC for Web Server (92)
name 10.1.252.246 NAS description Synology NAS (86)
name 10.1.252.250 WebServerIIS10 description Windows Server 2019 (88)
name 10.1.252.192 DRAC-VirtualServer description DRAC for Virtual Server (89)
name 10.1.252.245 DNS-Server description Primary DNS Server (91)
name 10.1.252.190 VM-HyperV-Port4 description Ethernet Port 4 for VM Machine (87)
!
interface GigabitEthernet0/0
nameif outside
security-level 0
ip address 12.43.6.90 255.255.255.0
!
interface GigabitEthernet0/1
nameif inside
security-level 100
ip address 10.1.252.254 255.255.255.0
!
interface GigabitEthernet0/2
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet0/3
shutdown
no nameif
no security-level
no ip address
!
interface Management0/0
management-only
nameif management
security-level 100
ip address 192.168.1.1 255.255.255.0
!
ftp mode passive
clock timezone UTC -8
dns domain-lookup inside
dns domain-lookup outside
dns server-group DefaultDNS
name-server DNS-Server
name-server 8.8.8.8
domain-name edenhosting.net
object network IIS85Server
host 10.1.252.249
object network WebServerIIS80
host 10.1.252.249
object network WebServerIIS10
host 10.1.252.250
description Windows Server 2019-Web Server
object network Sendmail
host 10.1.252.219
object network DNS-Server
host 10.1.252.245
object network DRAC-VirtualServer
host 10.1.252.192
object network VM-HyperV-Port4
host 10.1.252.190
object network ExchangeServer
host 10.1.252.247
object network NAS
host 10.1.252.246
description Synology NAS (86)
access-list outside_access_in extended permit tcp any4 host 10.1.252.245 eq domain
access-list outside_access_in extended permit udp any4 host 10.1.252.245 eq domain
access-list outside_access_in extended permit tcp any4 host 10.1.252.219 eq smtp
access-list outside_access_in extended permit tcp any4 host 10.1.252.219 eq pop3
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq https
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq www
access-list outside_access_in extended permit tcp any4 host 10.1.252.190 eq www
access-list outside_access_in extended permit tcp any4 host 10.1.252.190 eq https
access-list outside_access_in extended permit tcp any4 host 10.1.252.190 eq ssh
access-list outside_access_in extended permit tcp any4 host 10.1.252.190 eq ftp
access-list outside_access_in extended permit tcp any4 host 10.1.252.190 eq 445
access-list outside_access_in extended permit tcp any4 host 10.1.252.190 eq 2179
access-list outside_access_in extended permit tcp any4 host 10.1.252.190 eq 5985
access-list outside_access_in extended permit tcp any4 host 10.1.252.190 eq 5986
access-list outside_access_in extended permit tcp any4 host 10.1.252.190 eq 6600
access-list outside_access_in extended permit udp any4 host 10.1.252.190 eq 339
access-list outside_access_in extended permit tcp any4 host 10.1.252.219 eq 587
access-list outside_access_in extended permit tcp any4 host 10.1.252.192 eq https
access-list outside_access_in extended permit tcp any4 host 10.1.252.192 eq www
access-list outside_access_in extended permit tcp any4 host 10.1.252.219 eq imap4
access-list outside_access_in extended permit tcp any4 host 10.1.252.219 eq 995
access-list outside_access_in extended permit tcp any4 host 10.1.252.219 eq 993
access-list outside_access_in extended permit tcp any4 host 10.1.252.219 eq 465
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq ftp
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq ssh
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq 990
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq 5000
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq 5001
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq 5002
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq 5003
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq 5004
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq 5005
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq 5006
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq 5007
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq 5008
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq 5009
access-list outside_access_in extended permit tcp any4 host 10.1.252.247 eq 5010
access-list outside_access_in extended permit tcp any4 host 10.1.252.246 eq https
access-list outside_access_in extended permit tcp any4 host 10.1.252.246 eq ftp
access-list outside_access_in extended permit tcp any4 host 10.1.252.246 eq www
access-list outside_access_in extended permit tcp any4 host 10.1.252.246 eq 5000
access-list outside_access_in extended permit tcp any4 host 10.1.252.246 eq 5001
access-list outside_access_in extended permit tcp any4 host 10.1.252.245 eq www
access-list outside_access_in extended permit tcp any4 host 10.1.252.245 eq pop3
access-list outside_access_in extended permit tcp any4 host 10.1.252.245 eq smtp
access-list outside_access_in extended permit tcp any4 host 10.1.252.245 eq 465
access-list outside_access_in extended permit tcp any4 host 10.1.252.245 eq 587
access-list outside_access_in extended permit tcp any4 host 10.1.252.245 eq 995
access-list outside_access_in extended permit tcp any4 host 10.1.252.245 eq 993
access-list outside_access_in extended permit tcp any4 host 10.1.252.245 eq imap4
access-list outside_access_in extended permit tcp any4 host 10.1.252.250 eq https
access-list outside_access_in extended permit tcp any4 host 10.1.252.250 eq www
access-list outside_access_in extended permit tcp any4 host 10.1.252.250 eq 3389
access-list outside_access_in extended deny ip host 65.197.196.0 any
access-list outside_access_in extended deny ip host 51.222.38.0 any

pager lines 24
logging enable
logging asdm informational
logging from-address support@edenhosting.net
logging recipient-address support@edenhosting.net level errors
mtu management 1500
mtu inside 1500
mtu outside 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-782-151.bin
asdm history enable
arp timeout 14400
no arp permit-nonconnected
!
object network WebServerIIS80
nat (inside,outside) static 12.43.6.93
object network WebServerIIS10
nat (inside,outside) static 12.43.6.88
object network Sendmail
nat (inside,outside) static 12.43.6.92
object network DNS-Server
nat (inside,outside) static 12.43.6.91
object network DRAC-VirtualServer
nat (inside,outside) static 12.43.6.89
object network VM-HyperV-Port4
nat (inside,outside) static 12.43.6.87
object network ExchangeServer
nat (inside,outside) static 12.43.6.94
object network NAS
nat (inside,outside) static 12.43.6.86
!
nat (inside,outside) after-auto source dynamic any interface
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 12.43.6.81 1
timeout xlate 3:00:00
timeout pat-xlate 0:00:30
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
timeout floating-conn 0:00:00
dynamic-access-policy-record DfltAccessPolicy
user-identity default-domain LOCAL
http server enable
http 192.168.1.0 255.255.255.0 management
no snmp-server location
no snmp-server contact
crypto ipsec security-association pmtu-aging infinite
crypto ca trustpoint _SmartCallHome_ServerCA
no validation-usage
crl configure
crypto ca trustpool policy
crypto ca certificate chain _SmartCallHome_ServerCA
certificate ca 18dad19e267de8bb4a2158cdcc6b3b4a
308204d3 308203bb a0030201 02021018 dad19e26 7de8bb4a 2158cdcc 6b3b4a30
0d06092a 864886f7 0d010105 05003081 ca310b30 09060355 04061302 55533117
30150603 55040a13 0e566572 69536967 6e2c2049 6e632e31 1f301d06 0355040b
13165665 72695369 676e2054 72757374 204e6574 776f726b 313a3038 06035504
0b133128 63292032 30303620 56657269 5369676e 2c20496e 632e202d 20466f72
20617574 686f7269 7a656420 75736520 6f6e6c79 31453043 06035504 03133c56
65726953 69676e20 436c6173 73203320 5075626c 69632050 72696d61 72792043
65727469 66696361 74696f6e 20417574 686f7269 7479202d 20473530 1e170d30
36313130 38303030 3030305a 170d3336 30373136 32333539 35395a30 81ca310b
30090603 55040613 02555331 17301506 0355040a 130e5665 72695369 676e2c20
496e632e 311f301d 06035504 0b131656 65726953 69676e20 54727573 74204e65
74776f72 6b313a30 38060355 040b1331 28632920 32303036 20566572 69536967
6e2c2049 6e632e20 2d20466f 72206175 74686f72 697a6564 20757365 206f6e6c
79314530 43060355 0403133c 56657269 5369676e 20436c61 73732033 20507562
6c696320 5072696d 61727920 43657274 69666963 6174696f 6e204175 74686f72
69747920 2d204735 30820122 300d0609 2a864886 f70d0101 01050003 82010f00
3082010a 02820101 00af2408 08297a35 9e600caa e74b3b4e dc7cbc3c 451cbb2b
e0fe2902 f95708a3 64851527 f5f1adc8 31895d22 e82aaaa6 42b38ff8 b955b7b1
b74bb3fe 8f7e0757 ecef43db 66621561 cf600da4 d8def8e0 c362083d 5413eb49
ca595485 26e52b8f 1b9febf5 a191c233 49d84363 6a524bd2 8fe87051 4dd18969
7bc770f6 b3dc1274 db7b5d4b 56d396bf 1577a1b0 f4a225f2 af1c9267 18e5f406
04ef90b9 e400e4dd 3ab519ff 02baf43c eee08beb 378becf4 d7acf2f6 f03dafdd
75913319 1d1c40cb 74241921 93d914fe ac2a52c7 8fd50449 e48d6347 883c6983
cbfe47bd 2b7e4fc5 95ae0e9d d4d143c0 6773e314 087ee53f 9f73b833 0acf5d3f
3487968a ee53e825 15020301 0001a381 b23081af 300f0603 551d1301 01ff0405
30030101 ff300e06 03551d0f 0101ff04 04030201 06306d06 082b0601 05050701
0c046130 5fa15da0 5b305930 57305516 09696d61 67652f67 69663021 301f3007
06052b0e 03021a04 148fe5d3 1a86ac8d 8e6bc3cf 806ad448 182c7b19 2e302516
23687474 703a2f2f 6c6f676f 2e766572 69736967 6e2e636f 6d2f7673 6c6f676f
2e676966 301d0603 551d0e04 1604147f d365a7c2 ddecbbf0 3009f343 39fa02af
33313330 0d06092a 864886f7 0d010105 05000382 01010093 244a305f 62cfd81a
982f3dea dc992dbd 77f6a579 2238ecc4 a7a07812 ad620e45 7064c5e7 97662d98
097e5faf d6cc2865 f201aa08 1a47def9 f97c925a 0869200d d93e6d6e 3c0d6ed8
e6069140 18b9f8c1 eddfdb41 aae09620 c9cd6415 3881c994 eea28429 0b136f8e
db0cdd25 02dba48b 1944d241 7a05694a 584f60ca 7e826a0b 02aa2517 39b5db7f
e784652a 958abd86 de5e8116 832d10cc defda882 2a6d281f 0d0bc4e5 e71a2619
e1f4116f 10b595fc e7420532 dbce9d51 5e28b69e 85d35bef a57d4540 728eb70e
6b0e06fb 33354871 b89d278b c4655f0d 86769c44 7af6955c f65d3208 33a454b6
183f685c f2424a85 3854835f d1e82cf2 ac11d6a8 ed636a
quit
telnet 10.1.252.0 255.255.255.0 inside
telnet timeout 10
no ssh stricthostkeycheck
ssh timeout 5
ssh key-exchange group dh-group1-sha1
console timeout 0
threat-detection basic-threat
threat-detection statistics host
threat-detection statistics port
threat-detection statistics protocol
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
ntp server WebServerIIS80 source inside prefer
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum client auto
message-length maximum 512
policy-map type inspect dns DNS-MediumSecurityLevel
parameters
message-length maximum 512
id-randomization
id-mismatch action log
policy-map global_policy
class inspection_default
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect esmtp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect sip
inspect netbios
inspect tftp
inspect ip-options
inspect http
inspect dns DNS-MediumSecurityLevel dynamic-filter-snoop
!
service-policy global_policy global
smtp-server 10.1.252.219 10.1.252.250
prompt hostname context
no call-home reporting anonymous
Cryptochecksum:c9673661ede2c6e066dafd58862a71a0
ciscoasa5540(config)#

And I have the following IOS and hardware:

Cisco Adaptive Security Appliance Software Version 9.1(7)32
Device Manager Version 7.8(2)151

Compiled on Tue 04-Sep-18 08:37 by builders
System image file is "disk0:/asa917-32-k8.bin"
Config file at boot was "startup-config"

ciscoasa5540 up 299 days 17 hours

Hardware: ASA5540-K8, 2560 MB RAM, CPU Pentium 4 2000 MHz,
Internal ATA Compact Flash, 256MB
BIOS Flash AT49LW080 @ 0xfff00000, 1024KB

Encryption hardware device : Cisco ASA-55xx on-board accelerator (revision 0x0)
Boot microcode : CN1000-MC-BOOT-2.00
SSL/IKE microcode : CNlite-MC-SSLm-PLUS-2.08
IPSec microcode : CNlite-MC-IPSECm-MAIN-2.09
Number of accelerators: 1

[Richard Burts]

We need more details to be able to understand what this issue is and to be able to give good advice about it. As a start would you post the configuration. We need to see the complete access list and how it is applied. And there might some other details that we need to be aware of such as address translations.

[beatinger]

Okay, I'll add that now. Thank you very much!

[beatinger]

Hello Richard.  The configuration has been added to the original question.  Thank you!