09-27-2013 04:22 PM - edited 03-04-2019 09:10 PM
Hello everyone,
I am having an odd issue that I am unable to find any information on. In the following config, the command: "ip nat inside source list 1 interface Virtual-Dot11Radio0 overload" keeps disappearing randomly. It will work perfectly for 12+ hours, then it will be gone with no noticable cause. Then I will reinput the command, and it will continue to function normally. Even after a reload, the command is missing, although "show startup" shows the command in the config.
Any ideas?
Thanks in advance,
Nathan
(This is on a Cisco ISR 877w)
version 15.1
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname NAT-Router
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
crypto pki token default removal timeout 0
!
!
dot11 syslog
!
dot11 ssid XXXXXXXXXX
authentication open
authentication key-management wpa
wpa-psk ascii 7 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
!
ip source-route
!
!
!
ip cef
ip name-server 8.8.8.8
ip name-server 8.8.4.4
!
!
!
!
username XXXXXXX privilege 15 secret 5 XXXXXXXXXXXXXXXXXXXXXXX
!
!
!
!
!
!
!
!
!
interface ATM0
no ip address
shutdown
no atm ilmi-keepalive
!
interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface Dot11Radio0
ip address dhcp
ip nat outside
ip virtual-reassembly in
!
encryption mode ciphers aes-ccm
!
ssid XXXXXXXXXX
!
speed basic-1.0 2.0 5.5 6.0 9.0 11.0 12.0 18.0 24.0 36.0 48.0 54.0
no preamble-short
station-role non-root
!
interface Vlan1
ip address 192.168.254.50 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
ip forward-protocol nd
ip http server
ip http authentication local
no ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
!
ip nat log translations syslog
ip nat inside source list 1 interface Virtual-Dot11Radio0 overload
ip route 0.0.0.0 0.0.0.0 Dot11Radio0 dhcp
!
logging esm config
access-list 1 permit 192.168.254.0 0.0.0.255
access-list 1 remark Internal
!
!
!
!
control-plane
!
!
line con 0
no modem enable
line aux 0
line vty 0
exec-timeout 0 0
privilege level 15
login local
transport input telnet
transport output all
line vty 1 4
exec-timeout 0 0
privilege level 15
login local
length 0
transport input telnet
transport output all
!
end
09-28-2013 09:04 PM
To add this further information, it seems that it only does this when using Virtual-Dot11Radio0. If I change the command to use Dot11Radio0, it stays. It just won't route properly.
09-29-2013 01:36 PM
Nathan,
I have ran into similar issues in the past with static NAT statements disappearing. (ex: https://supportforums.cisco.com/thread/2214331)
As this sounds like a software issue, I would suggest to upgrade your router to the latest iOS release.
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