ASA5520 to cisco Router

[moimyrtho]

I am trying to introduce an ASA5520 to my network based on the following diagram:

ISP Internet ------> ASA5520 ------- > Cisco Router ------> LAN.

The problem is I cannot ping the ASA from the LAN. I can ping it from  inside the router.  I already allow ICMP within ASA. If i remove the  cisco router and replace it by a swich, I can ping the ASA with NO problem.

Anyone, please help. Thank you!

[manish arora]

Can you please post your topology with ip addressing subnets between the asa ,

router and lan. Need to see the sh route on asa and sh ip route on the router. Seems like your missing routes.

Manish

[jmunoz19]

It sounds like the ASA does not have a route to the inside LAN network.  When you ping from the LAN, the return packets don't have a route back so they follow the default route to the Internet.  You need to add a route for the LAN network pointing to the router.

[moimyrtho]

ASA inside IP: 192.168.10.1/24  to Router gig0/0: 192.168.10.2/24.

I have a default route in router as:

ip route 0.0.0.0 0.0.0.0 192.168.10.1

I though that should take care of it, but it  did not.

ASA config

ASA Version 8.2(1)
!
hostname ciscoasa
enable password 8Ry2YjIyt7RRXU24 encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
!
interface GigabitEthernet0/0
nameif outside
security-level 0
ip address 2xx.xx.xxx.xxx 255.255.255.252
!
interface GigabitEthernet0/1
nameif inside
security-level 100
ip address 192.168.10.1 255.255.255.0
!
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
nameif management
security-level 100
ip address 192.168.1.1 255.255.255.0
management-only
!
ftp mode passive
access-list OUTSIDE_IN_ACL extended permit icmp any any echo-reply
pager lines 24
logging asdm informational
mtu management 1500
mtu outside 1500
mtu inside 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0
access-group OUTSIDE_IN_ACL in interface outside
route outside 0.0.0.0 0.0.0.0 200.32.255.177 1
timeout xlate 3:00:00
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
dynamic-access-policy-record DfltAccessPolicy
http server enable
http 192.168.1.0 255.255.255.0 management
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec security-association lifetime seconds 28800
crypto ipsec security-association lifetime kilobytes 4608000
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd address 192.168.1.2-192.168.1.254 management
dhcpd enable management
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
webvpn
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
  message-length maximum 512
policy-map global_policy
class inspection_default
  inspect dns preset_dns_map
  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
!
service-policy global_policy global
prompt hostname context
Cryptochecksum:035a0842d1fd3c38999ffefe2ed24554
: end
ciscoasa#

Router config

Current configuration : 6301 bytes
!
version 15.0
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname yourname
!
boot-start-marker
boot-end-marker
!
logging buffered 51200 warnings
!
no aaa new-model
!
no ipv6 cef
ip source-route
ip cef
!
!
ip dhcp excluded-address 192.168.3.1
ip dhcp excluded-address 192.168.5.1
ip dhcp excluded-address 192.168.5.254
!
ip dhcp pool USERSLAN
   network 192.168.3.0 255.255.255.0
   default-router 192.168.3.1
   dns-server 192.168.4.2

   lease 60
!
ip dhcp pool IT_DEPARTMENT
   network 192.168.5.0 255.255.255.0
   default-router 192.168.5.1
   dns-server 192.168.4.2
   lease 60
!
!
!
interface GigabitEthernet0/0
description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-GE 0/0$
ip address 192.168.10.2 255.255.255.0
duplex auto
speed auto
!
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
!
interface GigabitEthernet0/1.4
encapsulation dot1Q 4
ip address 192.168.4.252 255.255.255.0
ip nat inside
ip virtual-reassembly
!
interface GigabitEthernet0/1.5
encapsulation dot1Q 5
ip address 192.168.5.1 255.255.255.0
ip nat inside
ip virtual-reassembly
interface GigabitEthernet0/1.10
encapsulation dot1Q 10
ip address 192.168.3.1 255.255.255.0
ip nat inside
ip virtual-reassembly
!
ip route 0.0.0.0 0.0.0.0 192.168.10.1

control-plane
!
line con 0
login local
line aux 0
line vty 0 4

end

yourname#

[manish arora · Accepted solution]

on the ASA :-

asa(config)#route inside 192.168.4.0 255.255.255.0 192.168.10.2

asa(config)#route inside 192.168.5.0 255.255.255.0 192.168.10.2

asa(config)#route inside 192.168.3.0 255.255.255.0 192.168.10.2

Manish

[moimyrtho]

Thanks Manisharora111. Adding the routes in the ASA fixed my problem. Thank you!