04-06-2010 11:24 PM - edited 03-04-2019 08:03 AM
Hi All,
My customer proposed to buy Cisco 881G Router.
Our Requirements is to terminate both UMTS and DSL connections and is able to switch to UMTS if the DSL line fails.
And configure site to site DMVPN.
Can any one please suggest me about the UMTS configuration and how it will be switch to UMTS if the DSL line fails.
And site to site DMVPN should be up on UMTS if DSL failes visa versa.
Regards,
Naidu.
Solved! Go to Solution.
04-07-2010 12:43 AM
Hello Naidu,
the 3G UMTS interface can act as a backup for primary DSL interface
the use of the 3G interface can be done with classid DDR dial on demand routing
>> And site to site DMVPN should be up on UMTS if DSL failes visa versa.
This point is more difficult to achieve, it may be easier to build a second DMVPN cloud using the UMTS links unless you have a single provider for both the DSL and the UMTS link you will have different public IP addresses
look for HWIC 3G configuration guide in CCO it should help
http://www.cisco.com/en/US/docs/routers/access/1800/1861/software/feature/guide/3ghwic.html
Hope to help
Giuseppe
Edit:
added link to mentioned configuration guide
04-07-2010 12:43 AM
Hello Naidu,
the 3G UMTS interface can act as a backup for primary DSL interface
the use of the 3G interface can be done with classid DDR dial on demand routing
>> And site to site DMVPN should be up on UMTS if DSL failes visa versa.
This point is more difficult to achieve, it may be easier to build a second DMVPN cloud using the UMTS links unless you have a single provider for both the DSL and the UMTS link you will have different public IP addresses
look for HWIC 3G configuration guide in CCO it should help
http://www.cisco.com/en/US/docs/routers/access/1800/1861/software/feature/guide/3ghwic.html
Hope to help
Giuseppe
Edit:
added link to mentioned configuration guide
04-07-2010 06:29 AM
Hi Giuseppe,
Thanks for your response.
Actually I am new to Cisco 881G, even not yet seen what kind of interfaces will be there and how to setup also.
Tomorrow I have to configure this router as there is internet connection available with 3G.
And I have to configure site to site VPN tunnel with 3G fow now.
If you have any example configuration, could you please share to me.
It will be great help to me as I am at strange now.
Regards,
Naidu.
04-07-2010 06:56 AM
Hello Naidu,
the configuration guide has some examples
I would suggest to use a tunnel GRE protected by IPSec
you will need to pick from all examples to build a working complete configuration because some aspects are covered only in the basic example
Hope to help
Giuseppe
04-07-2010 10:53 PM
HI Giuseppe,
I looked at the link which you sent, it is so big and feeling typical to pick right examples.
The present scenario is, there is 3G card and Router 881G available. Today I have to complete the configuration.
It would be great if you could provide the sample configuration like how to activate the 3G card and how to configure the interface (I think cellular interface)
Once 3G card activated and router interface able to communicate with public, then I can form tunnel between sites.
Please your help is most precious.
Regards,
Naidu.
04-08-2010 03:22 AM
Hello Naidu,
an older thread on the same issue can be of help it contains also details on the chat script config for the 3G modem
https://supportforums.cisco.com/message/3008300#3008300
Hope to help
Giuseppe
Rate useful posts to help Haiti
04-08-2010 06:40 AM
Hi Giuseppe,
You are great, I am getting good suggestions from you...:-)
Deffnitely I will rate all the posts so far what are there once I achive this job..... Because it is very urgent to get done.
I saw the post before posted this thread, but still some unconfident about the configuration will get work.
If I configure my 881G router as like below.... will it work out? I hope it will work out.... If not what are the modifications...could you please suggest.
And how I have to activate the GSM sim (3G data card) in the router?
interface Cellular0
no ip address
!
interface Vlan1
ip address 10.31.xx.xxx 255.255.255.0
!
interface Cellular0/0/0
ip address negotiated
encapsulation ppp
dialer in-band
dialer string gsm
dialer-group 1
async mode interactive
ppp chap hostname cisco@wwan.ccs
ppp chap password 0 cisco
ppp ipcp dns request
!
ip route 0.0.0.0 0.0.0.0 Cellular0/0/0
!
access-list 1 permit any
dialer-list 1 protocol ip list 1
!
line 0/0/0
exec-timeout 0 0
script dialer gsm
login
modem InOut
Regards,
Naidu
04-08-2010 06:59 AM
Hello Naidu,
>> And how I have to activate the GSM sim (3G data card) in the router?
to check if the USIM is enabled for data services contact the provider support, they will tell you if you need to activate it and how (you may need to insert it in cell phone)
part of the GSM scipt may be provider specific check with them also this aspect.
Hope to help
Giuseppe
04-18-2010 05:38 AM
Hello Naidu,
looking at configuration guide of HWIC 3G-GSM there is a step that is different from CDMA that is the activation of a data modem profile
cellular
<profile number>
see
this part is made in a totally different way on HWIC CDMA
Have you been able to setup the 881G connection?
Hope to help
Giuseppe
04-19-2010 05:15 AM
Hi Giuseppe,
I completed the basic configuration and sent the router to onsite.
I have not heard any update from them to look into...
I will update you once I get hold the router...
Regards,
Naidu.
05-07-2010 05:26 AM
Hi Giuseppe,
The updated setup is like this...
3G & DSL lines terminated on 881G router to get internet access.
ASA 5505 connected to 881G router. Will did easy vpn with 5505.
Easy vpn seems working over DSL, have to cross check.
My present task is to configure failover between 3G & DSL (if DSL down internet should available over 3G)
Could you please guide me how to configure the failover between 3G & DSL in 881G router.
Regards,
Naidu.
05-07-2010 08:18 AM
Hello Naidu,
the 3G HWIC configuration guide contains a good config example:
see
you may need to change something but this gives you a complete picture of what you need to do
You need to make the appropriate changes for easy VPN.
If I remember correctly Lei Tian had provided a link to easy VPN configuration in another thread of yours.
Hope to help
Giuseppe
02-09-2011 06:16 AM
Hello Giuseppe,
I read many of your post, thakn you for all of them. They are so helpfull. I need your quik look, thank you in advance..
I am trying to configure 3G backup line with primary ADSL on Cisco router 887G at branch office.
DSL line is point to point. When I just finished the DSL config, line uses ISP's MPLS vpn, and we can work on as site-to-site VPN.
3G line I configured few days ago. And I configured DMVPN on the 3G line. Until here everything is ok.
One by one each line works fine. But when I try to configure 3G line as a backup line of DSL, I can not reach to the head office.
Today I read more about tracking. I can send my last configuration by now. But, I can only try this config successfull or not unfortunately on monday.
Can you please check my config ? Any thing look wrong...
x.x.x.x head quarter real ip
x.x.x.z track ip
!
! Last configuration change at 14:04:58 UTC Tue Feb 8 2011 by dpcmerkez
!
version 15.1
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname IST_DPC
!
boot-start-marker
boot system flash c880data-universalk9-mz.151-2.T2a.bin
boot-end-marker
!
!
logging buffered 51200 warnings
enable secret 5 $1$Hgd4$F/8kIIGAwxl7lS2kLetnJ.
!
no aaa new-model
!
memory-size iomem 10
crypto pki token default removal timeout 0
!
crypto pki trustpoint TP-self-signed-2733612712
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-2733612712
revocation-check none
rsakeypair TP-self-signed-2733612712
!
!
ip source-route
!
!
!
!
!
ip cef
no ip domain lookup
ip domain name yourdomain.com
no ipv6 cef
!
!
multilink bundle-name authenticated
chat-script internet "" "ATDT*99#" TIMEOUT 60 "CONNECT"
!
username **** password *****
!
!
!
!
controller Cellular 0
!
ip ftp source-interface Vlan1
ip ftp username ozgur
ip ftp password 7 1418080C1916
!
!
crypto isakmp policy 10
hash md5
authentication pre-share
group 2
crypto isakmp key cisco123 address x.x.x.x
!
crypto ipsec transform-set *** esp-3des esp-md5-hmac
!
crypto ipsec profile ****
set transform-set ****
!
!
!
!
!
interface Tunnel1
ip address 192.168.168.2 255.255.255.0
no ip redirects
ip mtu 1440
ip nhrp authentication cisco123
ip nhrp map multicast dynamic
ip nhrp map multicast x.x.x.x
ip nhrp map 192.168.168.1 x.x.x.x
ip nhrp network-id 5
ip nhrp nhs 192.168.168.1
ip nhrp registration no-unique
tunnel source Dialer1
tunnel mode gre multipoint
tunnel key 5
tunnel protection ipsec profile ******
!
interface ATM0
no ip address
no atm ilmi-keepalive
pvc 8/35
pppoe-client dial-pool-number 2
!
!
interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface Cellular0
description "### 3g interface ###"
no ip address
ip virtual-reassembly in
encapsulation ppp
load-interval 60
dialer in-band
dialer pool-member 1
async mode interactive
no fair-queue
!
interface Vlan1
description "### LAN baglantilari ###"
ip address 172.25.190.1 255.255.255.0
ip virtual-reassembly in
ip tcp adjust-mss 1452
!
interface Dialer0
ip address negotiated
backup interface dialer1
ip directed-broadcast
encapsulation ppp
ip tcp adjust-mss 1300
dialer pool 2
ppp authentication chap pap callin
ppp chap hostname *********
ppp chap password ****
ppp pap sent-username ***** password *******
no cdp enable
!
interface Dialer1
ip address negotiated
ip flow ingress
ip virtual-reassembly in
encapsulation ppp
shutdown
dialer pool 1
dialer idle-timeout 0
dialer string internet
dialer persistent
dialer-group 1
ppp authentication chap callin
ppp chap refuse
ppp pap refuse
ppp ipcp dns request
no cdp enable
!
!
router eigrp 5
network 172.25.190.0 0.0.0.255
network 192.168.168.0
!
ip forward-protocol nd
no ip http server
ip http access-class 23
ip http authentication local
no ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
!
!
ip local policy route-map track-primary-if
ip route 0.0.0.0 0.0.0.0 Dialer0 2
ip route 0.0.0.0 0.0.0.0 Dialer1 254
ip sla 1
icmp-echo x.x.x.z source-interface Dialer0
ip sla schedule 1 life forever start-time now
logging esm config
access-list 1 permit any
access-list 120 permit icmp any host x.x.x.z
dialer-list 1 protocol ip permit
no cdp run
!
!
!
!
route-map track-primary-if permit 10
match ip address 120
set interface Dialer0
!
!
control-plane
!
!
line con 0
login local
no modem enable
line aux 0
line 3
exec-timeout 0 0
script dialer internet
modem InOut
no exec
transport input all
speed 237000
line vty 0 4
privilege level 15
login local
transport input telnet ssh
!
end
06-16-2011 11:02 PM
I change my static route a bit ..than backup line works fine. When DSL goes down 3G line becomes main connection.
I just need to another 2 route lines according to track config.Everything works as I planed.
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