Internet connection lost after while with ASA

[mohammad saeed]

Hi Experts,

After I configured my ASA, I noticed that the internet connection lost after 10 to 15 minutes, and goes back after I did ping in ASA. What would be the problem for this issue? and How can I cure it?

Thanks for all

Mohammad

[Ji-Won Park]

can you post your configuration of the ASA?

[mohammad saeed]

Here is the ASA configuration:

ciscoasa# show run
: Saved
:
ASA Version 8.3(1) 
!
hostname ciscoasa
domain-name Saudi.net.sa
enable password 8Ry2YjIyt7RRXU24 encrypted
passwd c6VlJn9eD1.uinpp encrypted
names
!
interface GigabitEthernet0/0
 nameif outside
 security-level 0
 ip address 10.60.20.1 255.255.255.0 
!
interface GigabitEthernet0/1
 nameif inside
 security-level 100
 ip address 10.60.10.2 255.255.255.0 
!
interface GigabitEthernet0/2
 nameif 0
 security-level 0
 ip address 10.60.30.2 255.255.255.0 
!
interface GigabitEthernet0/3
 shutdown
 no nameif
 no security-level
 no ip address
!
interface Management0/0
 no nameif
 no security-level
 no ip address
 management-only
!
ftp mode passive
dns server-group DefaultDNS
 name-server *******
 name-server *******
 domain-name Saudi.net.sa
same-security-traffic permit intra-interface
object network NAT 
 subnet 0.0.0.0 0.0.0.0
access-list PERMIT_ALL extended permit ip any any 
pager lines 24
logging asdm informational
mtu outside 1500
mtu DMZ 1500  
mtu inside 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
icmp permit any outside
no asdm history enable
arp timeout 14400
nat (inside,outside) source dynamic any interface
access-group PERMIT_ALL global
route outside 0.0.0.0 0.0.0.0 10.60.20.2 1
route inside 10.0.0.0 255.0.0.0 10.60.10.1 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
dynamic-access-policy-record DfltAccessPolicy
http server enable
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 10.0.0.0 255.0.0.0 outside
telnet 10.0.0.0 255.0.0.0 inside
telnet timeout 5
ssh timeout 5
console timeout 0
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
ntp server 10.60.0.1
!
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 http 
  inspect icmp 
!
service-policy global_policy global
prompt hostname context 
Cryptochecksum:b385bd0f7437ac34f899c48c5a738d96
: end
ciscoasa# 

Thanks,

Mohammad

[Vibhor Amrodia]

Hi,

Which device do you have connecting the ISP to the ASA device ?

I think there might be a ARP etc which seems to be related to the Layer 2 probably causing the traffic to be dropped after every 10-15 Mins.

Once , you ping the Gateway , it is regenerated and the traffic starts working fine.

I would say at the time of issue , check the ARP entry on both the ASA device and the device connecting the ISP and see if you are able to see the issue ?

Thanks and Regards,

Vibhor Amrodia