02-02-2012 06:56 PM - edited 03-04-2019 03:07 PM
hello experts
I have a cisco 3750 switch connected to the ASA5520 which is connected to the internet
LAN ----> Catalyst -----> ASA5520 ------> INTERNET
10.1.4.0 ---10.0.0.1 ----10.0.0.2 ------- 203.98.227.3
On my switch I have VLANs configured. From the 10.1.4.0 network, I'm able to ping switch gateway. I can ping insde of ASA .. See my ASA config below. I have allowed http and dns traffic outside but cannot browse internet from the 10.1.4.0 network. Please help.
interface GigabitEthernet0/0
nameif outside
security-level 0
ip address 203.98.227.254 255.255.255.0
!
interface GigabitEthernet0/1
nameif inside
security-level 100
ip address 10.0.0.2 255.255.255.252
!
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
!
object-group icmp-type ICMP_GRP
icmp-object echo
icmp-object echo-reply
icmp-object source-quench
icmp-object time-exceeded
icmp-object traceroute
icmp-object information-reply
icmp-object information-request
object-group protocol TCPUDP
protocol-object udp
protocol-object tcp
access-list in_out extended permit tcp 10.1.4.0 255.255.255.224 any eq www
access-list in_out extended permit object-group TCPUDP 10.1.4.0 255.255.255.224 any eq domain
access-list in_out extended permit icmp any any object-group ICMP_GRP
pager lines 24
logging enable
logging asdm informational
mtu outside 1500
mtu inside 1500
mtu management 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
nat (any,any) source static any any
access-group in_out in interface inside
route outside 0.0.0.0 0.0.0.0 203.98.227.3 1
route inside 10.1.4.0 255.255.255.224 10.0.0.1 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
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
snmp-server enable traps snmp authentication linkup linkdown coldstart warmstart
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 host
threat-detection statistics port
threat-detection statistics protocol
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 client auto
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
inspect ip-options
class class-default
user-statistics accounting
!
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
Cryptochecksum:dc2ba7a91c9d2244fd109ef7c46e2547
: end
02-02-2012 08:02 PM
Hi,
What is the ASA version? if it is pre 8.3, can you try...
1. remove
nat (any,any) source static any any
2. Add:
nat (inside) 1 0 0
global (outside) 1 interface
access-list in_out extended permit tcp 10.1.4.0 255.255.255.224 any eq https
hth
MS
02-02-2012 08:47 PM
hi
ASA version 8.4(2), so cannot enter the commands except for the last one. No internet access still.
02-03-2012 04:01 AM
8.3 & up...
object network obj_any
subnet 0.0.0.0 0.0.0.0
nat (inside,outside) dynamic interface
Try and post the results.
Thx
MS
02-03-2012 06:59 PM
hi
tried the config but no luck yet. see below is the ASA config . See attached are few screenshots of the packet tracer.
Result of the command: "show running-config"
: Saved
:
ASA Version 8.4(2)
!
hostname ciscoasa
enable password xxxxxxxxx encrypted
passwd xxxxxxxxx encrypted
names
!
interface GigabitEthernet0/0
nameif outside
security-level 0
ip address 203.98.227.220 255.255.255.0
!
interface GigabitEthernet0/1
nameif inside
security-level 100
ip address 10.0.0.2 255.255.255.252
!
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
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
object network obj_any
subnet 0.0.0.0 0.0.0.0
object-group icmp-type ICMP_GRP
icmp-object echo
icmp-object echo-reply
icmp-object source-quench
icmp-object time-exceeded
icmp-object traceroute
icmp-object information-reply
icmp-object information-request
object-group protocol TCPUDP
protocol-object udp
protocol-object tcp
access-list in_out extended permit tcp 10.1.4.0 255.255.255.224 any eq www
access-list in_out extended permit object-group TCPUDP 10.1.4.0 255.255.255.224 any eq domain
access-list in_out extended permit tcp 10.1.4.0 255.255.255.224 any eq https
access-list in_out extended permit ip any any
access-list in_out extended permit icmp any any object-group ICMP_GRP
pager lines 24
logging enable
logging asdm informational
mtu outside 1500
mtu inside 1500
mtu management 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
!
object network obj_any
nat (inside,outside) dynamic interface
access-group in_out in interface inside
route outside 0.0.0.0 0.0.0.0 203.98.227.3 1
route inside 10.1.4.0 255.255.255.224 10.0.0.1 1
route inside 10.10.10.0 255.255.255.128 10.0.0.1 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
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
http 10.1.4.0 255.255.255.224 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart warmstart
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 host
threat-detection statistics port
threat-detection statistics protocol
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 client auto
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
inspect ip-options
class class-default
user-statistics accounting
!
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
Cryptochecksum:bc571cc40077cde13fa27e347e0e39e9
: end
02-03-2012 10:22 PM
Do you have a default route on switch for 10.1.40.0?
02-04-2012 04:03 PM
indeed it was a route problem on my switch. I had a default-gateway configured. I removed it and put in ip route 0.0.0.0 0.0.0.0
Thank you all who contibuted.
One more question.
I have two email servers with public ips on my internal network.
Email server1 - 203.98.227.2 ---- internal ip 10.1.4.5
Email server 2 - 203.98.227.4 ---- internal ip 10.1.4.6
I want my email server (10.1.4.5) to use staic nat of 203.98.227.2 when sending and receiving email and email server 2 (10.1.4.6) to use staic nat of 203.98.227.16 when sending and receiving email.
I have a web server (global ip 203.98.227.6 internal ip 10.1.4.8). . How do i forward all traffic coming to ASA public interface with the web server ip address to be forwarded to 10.1.4.8.
THanks everyone.
02-05-2012 12:55 AM
Try this commands
static (inside, outside) tcp 203.98.227.6 http 10.1.4.8 http netmask 255.255.255.255
static (inside, outside) tcp 203.98.227.2 smtp 10.1.4.5 smtp netmask 255.255.255.255
static (inside, outside) tcp 203.98.227.4 smtp 10.1.4.6 smtp netmask 255.255.255.255
Hope this helps
Eugen
02-05-2012 04:52 PM
hi eugen
my ASA has version 8.4(2) so cannot put in the commands.
Do u also need to put accesslist with nat commands.
02-05-2012 05:02 PM
If you can not use those commands, then better use extended ACL with nat coomands.
Eugen
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