Maipu 3G configurations

Now a days, Many customers are looking for cheap backup solution for primary link, so many ISP are offering 3G link (inform of USB or sim card) as backup link.

In mean time they can restore primary, customer can use 3G as backup for continuation in operations.

Maipu has MP 1800 series dedicated for 3G CPE routers.

This is tested configuration for one of case.But here we are using 2 cellular media, one is 3G from SIM card and other is from USB. This is quite intresting , Both can be used same time. One as primary and other as backup.

Many customer requires this kind of solution.

Testing description

MP1800 router as the CPE in the customer life network, interface cellular 3/0 as the primary link , link type is GPRS (3G) and USB interface as the backup link also via the GPRS network  cellular0.

When the master link was down, router will automatically change to the backup link.

Totally customer has two link, one for primary and other one for link backup.

Maipu 1800 key configuration:

ip mef

ip load-sharing per-destination

ip access-list standard 1

 10 permit any

 exit

dialer-list 1 protocol ip permit

dialer-list 2 protocol ip permit

chat-script g3dia ATDT

interface fastethernet0

 ip address 172.29.1.1 255.255.255.252

 exit

interface tunnel1

 tunnel source 10.203.176.22        ## IP address are received from SP after authentication ##

 tunnel destination 172.29.5.210     ## IP address are received from SP after authentication ##

 ip address 192.211.1.2 255.255.255.252

 exit

interface tunnel2

 tunnel source 10.111.20.32           ## IP address are received from SP after authentication ##

 tunnel destination 172.30.233.15     ## IP address are received from SP after authentication ##

 ip address 192.212.1.2 255.255.255.252

 ip ospf cost 30000

 exit

!hsc_if_cellular0

interface cellular0                              ### USB Cellular ###

 encapsulation ppp

 ppp chap password ow

 ppp ipcp dns request

 ip address negotiated

 bandwidth 384

 dialer in-band

 dialer idle-timeout 0

 dialer-group 1

 dialer string *99#

 script dialer g3dia

 ui-control inaccessible telnet http

 exit

!end

!hsc_if_cellular3/0

interface cellular3/0                  ### SIM card used for connectivity ###

 encapsulation ppp

 ppp chap password ow

 ppp ipcp dns request

 ip address negotiated

 bandwidth 384

 dialer in-band

 dialer idle-timeout 0

 dialer-group 2

 dialer string *99#

 script dialer g3dia

 ui-control inaccessible telnet http

 exit       

                                  

router ospf 100

 network 172.29.1.0 0.0.0.255 area 0

 network 192.211.1.0 0.0.0.255 area 0

 network 192.212.1.0 0.0.0.255 area 0

 exit

ip route 0.0.0.0 0.0.0.0 cellular0

ip route 0.0.0.0 0.0.0.0 cellular3/0

Hope this configuration will be helpful for you.

For feedback and queries, Plz comment with your name and mail id..