07-24-2013 08:43 AM - edited 03-11-2019 07:16 PM
Hi
I have routing issue on ASA 5510. I have 1 interface for outside , 2 interface for inside.
The issue is 2 inside interface can't route .
inside 1 - 10.206.0.0 255.255.252.0
inside 2 - 10.207.0.0 255.255.255.0
10.207.0.X subnet can't reach 10.206.0.X subnet , but 2 inside subnet can access outside.
Hope you can help me . Many thanks
Here is config
!
interface Ethernet0/0
nameif BB
security-level 0
ip address 100.100.100.2 255.255.255.0
!
interface Ethernet0/1
description 206
nameif 206
security-level 100
ip address 10.206.0.253 255.255.252.0
!
interface Ethernet0/2
description 207
nameif 207
security-level 100
ip address 10.207.0.253 255.255.255.0
!
interface Ethernet0/3
no nameif
no security-level
no ip address
!
interface Management0/0
nameif management
security-level 100
ip address 172.32.1.1 255.255.255.0
management-only
!
ftp mode passive
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
object-group network Internal_net
network-object 10.200.0.0 255.255.0.0
network-object 10.201.0.0 255.255.0.0
network-object 10.202.0.0 255.255.0.0
network-object 10.204.0.0 255.255.0.0
network-object 10.205.0.0 255.255.0.0
network-object 10.210.0.0 255.255.0.0
network-object 10.206.0.0 255.255.252.0
network-object 10.207.0.0 255.255.255.0
object-group network mk206
network-object 10.206.0.0 255.255.252.0
object-group network mk207
network-object 10.207.0.0 255.255.255.0
access-list 206_inside extended permit ip any any
access-list 207_inside extended permit ip any any
access-list BB_outside extended permit ip any any
access-list nonat207 extended permit ip object-group mk207 object-group Internal_net
access-list nonat206 extended permit ip object-group mk206 object-group Internal_net
pager lines 24
logging asdm informational
mtu BB 1500
mtu 206 1500
mtu 207 1500
mtu management 1500
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
nat-control
global (BB) 1 interface
nat (206) 0 access-list nonat206
nat (206) 1 10.206.0.0 255.255.252.0
nat (207) 0 access-list nonat207
nat (207) 1 10.207.0.0 255.255.255.0
access-group BB_outside in interface BB
access-group mk206_inside in interface 206
access-group mk207_inside in interface 207
route BB 0.0.0.0 0.0.0.0 100.100.100.1 1
route 206 10.0.0.0 255.0.0.0 10.206.0.254 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
aaa authentication ssh console LOCAL
aaa authentication telnet console LOCAL
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
ssh 10.0.0.0 255.0.0.0 management
ssh timeout 5
console timeout 0
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
!
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
inspect icmp
inspect icmp error
!
service-policy global_policy global
prompt hostname context
call-home reporting anonymous
Cryptochecksum:f18d859412bc8bed5c8a9d25cca60adb
: end
Solved! Go to Solution.
07-24-2013 09:00 AM
Hi,
Can you issue the command
packet-tracer input 207 tcp 10.207.0.100 12345 10.206.0.100 80
Dont mind about the IP addresses and ports used. This command is just supposed to tell us which NAT rules and other configurations the connections match.
You do seem to have NAT0 configurations on both interfaces for the traffic between the network.
I would however suggest NOT using the "object-group network Internal_net" on the NAT0 ACL configurations as it contains destination networks which are actually source networks for the interface used.
Some people might do a following NAT for the traffic between the interfaces
static (207,206) 10.207.0.0 10.207.0.0 netmask 255.255.255.0
There is naturally also the possibility that somewhere behind the "206" interface you have another interface which has a wrong network mask that contains even the 10.207.0.0/24 network in it and therefore connections never form between these 2 networks.
- Jouni
07-24-2013 09:00 AM
Hi,
Can you issue the command
packet-tracer input 207 tcp 10.207.0.100 12345 10.206.0.100 80
Dont mind about the IP addresses and ports used. This command is just supposed to tell us which NAT rules and other configurations the connections match.
You do seem to have NAT0 configurations on both interfaces for the traffic between the network.
I would however suggest NOT using the "object-group network Internal_net" on the NAT0 ACL configurations as it contains destination networks which are actually source networks for the interface used.
Some people might do a following NAT for the traffic between the interfaces
static (207,206) 10.207.0.0 10.207.0.0 netmask 255.255.255.0
There is naturally also the possibility that somewhere behind the "206" interface you have another interface which has a wrong network mask that contains even the 10.207.0.0/24 network in it and therefore connections never form between these 2 networks.
- Jouni
07-24-2013 08:11 PM
Hi Jouni
Thank for your support. But same not work after issue this
static (207,206) 10.207.0.0 10.207.0.0 netmask 255.255.255.0
Do you any idea ?
Thanks
07-24-2013 11:53 PM
Hello Jacky,
You said:
but 2 inside subnet can access outside.
access-list 206_inside extended permit ip any any
access-list 207_inside extended permit ip any any
access-group mk206_inside in interface 206
access-group mk207_inside in interface 207
As you can see there is a missmatch in the configuration, I do not see the access-list 206_inside...
Not sure if you copy/paste the configuration wrong or if there is an issue with the actual configuration..
Can you double check that,
Also check into consideration Jouni advise, make sure you have changed the NAT as required.
For Networking Posts check my blog at http://www.laguiadelnetworking.com/category/english/
Cheers,
Julio Carvajal Segura
07-25-2013 04:15 AM
Hi,
Didnt even notice the missmatch with the actual ACLs configured on the firewall and the names used in the "access-group" commands.
To my understanding the ASA wont allow using an ACL in the "access-group" command that does not exist. On the Cisco routers I think it was possible to attach some ACL to an interface which didnt exist but this caused all traffic through that interface to be blocked.
Could you give us the "packet-tracer" command output which I suggest earlier? This would atleast tell which rules the connection attempt would match on the firewall.
- Jouni
07-28-2013 10:43 PM
Thank All support and help.
Ths issue is solve.
Thanks Again
Jacky
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