01-29-2014 09:31 AM - edited 03-04-2019 10:12 PM
Hi All,
I got my hands on a Cisco 887VAG router with the intention to set up the router in a routed mode "will be coonected to private boardband network" with 3G backup which will use a VPN tunnel. i have looked all over the web and come up with the follwoing basic config.
Can some one please piont me in the right dirrection as 3G is not coming up when ADSL line is disconnected.
Config Attached.
01-29-2014 08:06 PM
Craig,
I take it you have the SIM card installed,and the radio is up,and this configuration is just to bring the 3g interface up,
I notice in the configuration:
interface Cellular0
encapsulation slip
and interface Dialer1
encapsulation ppp
should both be ppp
run debug ppp authentication to see if authenticating with your telco.
the dialer interface should look something like this if used as a backup
interface Dialer2
ip address negotiated
ip access-group 101 out
ip flow ingress
encapsulation ppp
dialer pool 2
dialer idle-timeout 30 < timeout should be set otherwise never goes down
dialer string telstra
dialer watch-group 2 < need a watch group so that when route via ADSL is lost will initate the dialer
dialer-group 2
ppp authentication chap callin
ppp chap hostname aaaaa
ppp chap password 7 cccc
ppp ipcp dns request
no cdp enable
01-29-2014 11:38 PM
Good Morning thanks for taking the time to reply.
The SIM is in slot 0 its a BT mobile sim which uses the Vodafone network in the UK.
When i do a sh int sum Cellular 0 is down. so this is my first issue i belive.
On the issue of Slip or PPP their seems to be conflicting reports on the web wheather to use Slip or PPP so i was unsure which is best for the UK.
interface dialer 1 is used to connect to priavte ADSL circutit in the uk and this part works. Becauce we use a private board band on the router when on its ADSL the router needs to be in ip routedmode so that all wan devices can see each other.
i belive my first piont is to get the Cellular0 interface to come up and work correctly.
01-30-2014 03:07 PM
Craig,
I don't know the setup required in the UK
does the SIM need to be unlocked?
cell 0 gsm sim unlock you need the SIM pin if it has one
also you need something like
chat-script telstra "" "ATDT*98*1#" TIMEOUT 30 CONNECT
and link the chat script to line 3
line 3
exec-timeout 0 0
script dialer telstra
modem InOut
HTH
Richard
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