1.- Create the profile, it need to match the APN values your SIMM card are provisioned with, besides be careful if the networks does authentication or not, chat script must have a name used for "dialer" string
2.- Create the chat script, this sentence is used by IOS to "Dial Up" the modem 3G/4G, if you have more than one profile, try make it match after the dial number "ATDT*99#" or "ATDT*98*n#" if you intend to use the profile "n" linked to the APN the Mobile Network Operator assign to your service
3.- Configure the Cellular interface it must include all the classicc commands for dial DDR, the main considerations is if your provider ask for authentication, it must be the same user and password you add into the cellular profile, if you don´t include it you will need to modify
description WAN 3G -- > this network didn´t ask for authentication
ip address negotiated
ip nat outside
ip virtual-reassembly in
dialer idle-timeout 0
dialer string gsm
async mode interactive
ppp chap refuse
ppp ipcp dns request
ppp ipcp route default
4.- Define interesting traffif for DDR to work, so ACL must be created as you usually does.
access-list 1 permit any
dialer-list 1 protocol ip permit
5.- Config the Line related to the cellular interface
line 0/1/0 ---> match the cellular interface slot/port number
exec-timeout 0 0
script dialer gsm --> the same name as chat-script
transport preferred none
transport input all
transport output none
6.- Configure Staticr route pointing to the cellular 0/1/0 interface in order to make the DDR work.
7.- Use ip SLA as a trigger for cellular conecction to the networks
ip sla 1
icmp-echo 220.127.116.11 --> Point to other Public IP address if your APN provides Internet Service, if not use a private address to trigger the conection
ip sla schedule 1 life forever start-time now
8.- Use the show cellular 0/x/0 all, for check parameter related to radio, data connections, Network , etc.
more specific show cellular 0/x/0 radio for check signal strenght
Transferring Crash file from standby:
Login to the Active WLC in HA.
(Cisco Controller) >transfer upload datatype crash
(Cisco Controller) >transfer upload filename <Desired filename>
(Cisco Controller) >transfer up...
This is the start of a display filter cross reference between Wireshark and OmniPeek.
The 1st installment is a table of advanced filters. More filters will be added as time allows.
It is a living doc, so check back for changes every so often
Please feel ...
I have created a Powershell script to automatically add a Wireless Guest User on Cisco WLCs. (tested on 2500 Series)
The script should be completely self explanatory.
Powershell SNMP Module (Install-Module -Name SNMP)
SNMP Write Access to...