Cisco 800 router adsl and 3g load balancing problem

oguzhan.yonar · ‎12-23-2016

when ı shutdown the dialer 1 which is adsl by using cli , it is not working dialer 2 (3g sim card) .?

what should ı do guys ?

my running config :

Router#sh run
Building configuration...

Current configuration : 2374 bytes
!
! Last configuration change at 11:08:11 UTC Fri Dec 23 2016
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
enable password 123
!
no aaa new-model
memory-size iomem 10
!
!
!
!
!
!

!
!
!
!
ip cef
no ipv6 cef
!
!
multilink bundle-name authenticated
chat-script bp "" "AT!SCACT=1,1" TIMEOUT 30 "OK"
license udi pid C887VAG+7-K9 sn FCZ172790BX
!
!
username 123 password 0 123
!
!
!
!
!
controller VDSL 0
!
controller Cellular 0
!
!
!
!
!
!
!
!
!
!
interface Ethernet0
no ip address
shutdown
!
interface ATM0
no ip address
no atm ilmi-keepalive
!
interface ATM0.1 point-to-point
pvc 8/35
no broadcast
encapsulation aal5snap
pppoe-client dial-pool-number 1
!
!
interface FastEthernet0
no ip address
!
interface FastEthernet1
no ip address
!
interface FastEthernet2
no ip address
!
interface FastEthernet3
no ip address
!
interface Cellular0
ip address negotiated
ip nat outside
ip virtual-reassembly in
encapsulation slip
dialer in-band
dialer pool-member 2
dialer-group 2
async mode interactive
!
interface Vlan1
ip address 172.16.1.254 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
interface Dialer1
ip address negotiated
ip mtu 1492
ip nat outside
ip virtual-reassembly in
encapsulation ppp
no ip route-cache
ip tcp adjust-mss 1300
dialer pool 1
dialer-group 1
ppp authentication pap chap callin
ppp chap hostname \\\\\\\\\\\\\\\@ttnet
ppp chap password 0 61235
ppp pap sent-username \\\\\\\\\\\\\\\\\@ttnet password 0 61235
!
interface Dialer2
ip address negotiated
ip nat outside
ip virtual-reassembly in
encapsulation ppp
dialer pool 2
dialer idle-timeout 0
dialer fast-idle 3
dialer string bp
dialer persistent delay initial 180
dialer persistent delay 10
dialer-group 2
ppp authentication pap chap callin
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip nat inside source list 1 interface Dialer1 overload

ip nat inside source list 2 interface Dialer 2 overload
ip route 0.0.0.0 0.0.0.0 Dialer1
ip route 0.0.0.0 0.0.0.0 Dialer2 100
!
access-list 1 permit 172.16.1.0 0.0.0.255

access-list 2 permit 172.16.1.0 0.0.0.255
!
!
control-plane
!
!
!
line con 0
no modem enable
line aux 0
line 3
script dialer bp
no exec
rxspeed 21600000
txspeed 5760000
line vty 0 4
password 123
login local
transport input all
!
!
end

Georg Pauwen · ‎12-23-2016

Hello,

is your Cellular working when you physiclly disconnect the ADSL line ?

What happens if you configure your cellular interface without a dialer ?

Your physical cellular interface has SLIP encapsulation, the associated dialer interface PPP, that could be a problem. Try and change it to PPP on the cellular as well...

oguzhan.yonar · ‎12-26-2016

when ı phsiclly disconnect the adsl . ı am able to ping outside by using 3g .

ı havent tried my cellular without dialer.

I will try it.

Georg Pauwen · ‎12-26-2016

Hello,

try the below configuration with IP SLA and route maps:

Router#sh run
Building configuration...

Current configuration : 2374 bytes
!
! Last configuration change at 11:08:11 UTC Fri Dec 23 2016
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
enable password 123
!
no aaa new-model
memory-size iomem 10
!
!
!
!
!
!

!
!
!
!
ip cef
no ipv6 cef
!
!
multilink bundle-name authenticated
chat-script bp "" "AT!SCACT=1,1" TIMEOUT 30 "OK"
license udi pid C887VAG+7-K9 sn FCZ172790BX
!
!
username 123 password 0 123
!
!
!
!
!
controller VDSL 0
!
controller Cellular 0
!
!
!
!
!
!
!
!
!
!
interface Ethernet0
no ip address
shutdown
!
interface ATM0
no ip address
no atm ilmi-keepalive
!
interface ATM0.1 point-to-point
pvc 8/35
no broadcast
encapsulation aal5snap
pppoe-client dial-pool-number 1
!
!
interface FastEthernet0
no ip address
!
interface FastEthernet1
no ip address
!
interface FastEthernet2
no ip address
!
interface FastEthernet3
no ip address
!
interface Cellular0
ip address negotiated
ip nat outside
ip virtual-reassembly in
encapsulation slip
dialer in-band
dialer pool-member 2
dialer-group 2
async mode interactive
!
interface Vlan1
ip address 172.16.1.254 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
interface Dialer1
ip address negotiated
ip mtu 1492
ip nat outside
ip virtual-reassembly in
encapsulation ppp
no ip route-cache
ip tcp adjust-mss 1300
dialer pool 1
dialer-group 1
ppp authentication pap chap callin
ppp chap hostname \\\\\\\\\\\\\\\@ttnet
ppp chap password 0 61235
ppp pap sent-username \\\\\\\\\\\\\\\\\@ttnet password 0 61235
!
interface Dialer2
ip address negotiated
ip nat outside
ip virtual-reassembly in
encapsulation ppp
dialer pool 2
dialer idle-timeout 0
dialer fast-idle 3
dialer string bp
dialer persistent delay initial 180
dialer persistent delay 10
dialer-group 2
ppp authentication pap chap callin
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
ip nat inside source route-map PRIMARY interface Dialer1 overload
ip nat inside source route-map BACKUP interface Dialer2 overload
ip route 0.0.0.0 0.0.0.0 Dialer1 track 1
ip route 0.0.0.0 0.0.0.0 Dialer2 10
!
access-list 10 permit 172.16.1.0 0.0.0.255
!
ip sla 1
icmp-echo 8.8.8.8 interface Dialer 1
timeout 150
frequency 2
ip sla schedule 1 life forever start-time now
!
track 1 ip sla 1 reachability
!
dialer-list 1 protocol ip permit
dialer-list 2 protocol ip permit
!
route-map PRIMARY permit 1
match ip address 10
match interface Dialer1
!
route-map BACKUP permit 1
match ip address 10
match interface Dialer2

control-plane
!
!
!
line con 0
no modem enable
line aux 0
line 3
script dialer bp
no exec
rxspeed 21600000
txspeed 5760000
line vty 0 4
password 123
login local
transport input all
!
!
end

Richard Bradfield · ‎12-25-2016

have you a profile set on the cellular modem?

please do a show cell 0 all, this will show the profile and how good the radio is

and configure the cellular interface something like below, no dialer interface required.

interface Cellular0
ip address negotiated
ip nat outside
ip virtual-reassembly in
encapsulation slip
load-interval 30
dialer in-band
dialer idle-timeout 0
dialer string bp
dialer-group 1
no peer default ip address
async mode interactive
routing dynamic

oguzhan.yonar · ‎12-26-2016

yes ı set it. I am able to ping outside.

When ı connect the adsl , ı am able to ping outside as well.

Separately everythinhg is okey but when ı connect the cellular and adsl , ı am not able to use both connecting .load balancing is not working.

my sh cellular 0 all :

sh cellular 0 all
Hardware Information
====================
Modem Firmware Version = T1_0_3_2AP R361 CNSZ
Modem Firmware built = 04/15/11
Hardware Version = 1.0
International Mobile Subscriber Identity (IMSI) = 286015603881388
International Mobile Equipment Identity (IMEI) = 357115040833183
Integrated Circuit Card ID (ICCID) = 8990011413210135238
Mobile Subscriber International Subscriber
IDentity Number (MSISDN) =
Factory Serial Number (FSN) = CC3146319111011
Modem Status = Online
Current Modem Temperature = 27 deg C, State = Normal
PRI SKU ID = 9900198, SKU Rev. = 1.2

Profile Information
====================
Profile 1 = ACTIVE*
--------
PDP Type = IPv4
PDP address = 10.39.39.130
Access Point Name (APN) = internet
Authentication = None
Username:
Password:
Primary DNS address = 213.74.0.4
Secondary DNS address = 213.74.1.4

* - Default profile

Configured default profile for active SIM 0 is profile 1.

Data Connection Information
===========================
Data Transmitted = 1500 bytes, Received = 1400 bytes
Profile 1, Packet Session Status = ACTIVE
IP address = 10.39.39.130
Primary DNS address = 213.74.0.4
Secondary DNS address = 213.74.1.4
Negotiated QOS Parameters:
Precedence = High Priority, Delay = Class 2
Reliability = Unack GTP, LLC, Ack RLC, Protected data
Peak = 256 kB/sec, Mean = 50000 kB/hr
Traffic Class = Interactive
Uplink Max = 11.5Mbps, Guaranteed = Subscribed
Downlink Max = 84Mbps, Guaranteed = Subscribed
Max SDU size = 1500 bytes
SDU error ratio = 1E-4, BER = 1E-5
Profile 2, Packet Session Status = INACTIVE
Inactivity Reason = Normal inactivate state
Profile 3, Packet Session Status = INACTIVE
Inactivity Reason = Normal inactivate state
Profile 4, Packet Session Status = INACTIVE
Inactivity Reason = Normal inactivate state
Profile 5, Packet Session Status = INACTIVE
Inactivity Reason = Normal inactivate state
Profile 6, Packet Session Status = INACTIVE
Inactivity Reason = Normal inactivate state
Profile 7, Packet Session Status = INACTIVE
Inactivity Reason = Normal inactivate state
Profile 8, Packet Session Status = INACTIVE
Inactivity Reason = Normal inactivate state
Profile 9, Packet Session Status = INACTIVE
Inactivity Reason = Normal inactivate state
Profile 10, Packet Session Status = INACTIVE
Inactivity Reason = Normal inactivate state
Profile 11, Packet Session Status = INACTIVE
Inactivity Reason = Normal inactivate state
Profile 12, Packet Session Status = INACTIVE
Inactivity Reason = Normal inactivate state
Profile 13, Packet Session Status = INACTIVE
Inactivity Reason = Normal inactivate state
Profile 14, Packet Session Status = INACTIVE
Inactivity Reason = Normal inactivate state
Profile 15, Packet Session Status = INACTIVE
Inactivity Reason = Normal inactivate state
Profile 16, Packet Session Status = INACTIVE
Inactivity Reason = Normal inactivate state

Network Information
===================
Current Service Status = Normal, Service Error = None
Current Service = Combined
Packet Service = HSPA+ (Attached)
Packet Session Status = Active
Current Roaming Status = Home
Network Selection Mode = Automatic
Country = TUR, Network = TCELL
Mobile Country Code (MCC) = 286
Mobile Network Code (MNC) = 1
Location Area Code (LAC) = 60416
Routing Area Code (RAC) = 1
Cell ID = 47113
Primary Scrambling Code = 473
PLMN Selection = Automatic
Registered PLMN = TR TURKCELL , Abbreviated = TCELL
Service Provider =

Radio Information
=================
Radio power mode = ON
Current Band = WCDMA 2100, Channel Number = 10612
Current RSSI = -53 dBm
Band Selected = Auto
Number of nearby cells = 1
Cell 1
Primary Scrambling Code = 0x1D9
RSCP = -52 dBm, ECIO = -6 dBm

Modem Security Information
==========================
Active SIM = 0
SIM switchover attempts = 0
Card Holder Verification (CHV1) = Disabled
SIM Status = OK
SIM User Operation Required = None
Number of CHV1 Retries remaining = 3

GPS Information
==========================

GPS Info
-------------
GPS State: GPS disabled

SMS Information
===============
Incoming Message Information
----------------------------
SMS stored in modem = 1
SMS archived since booting up = 0
Total SMS deleted since booting up = 0
Storage records allocated = 35
Storage records used = 2
Number of callbacks triggered by SMS = 0
Number of successful archive since booting up = 0
Number of failed archive since booting up = 0

Outgoing Message Information
----------------------------
Total SMS sent successfully = 0
Total SMS send failure = 0
Number of outgoing SMS pending = 0
Number of successful archive since booting up = 0
Number of failed archive since booting up = 0
Last Outgoing SMS Status = SUCCESS
Copy-to-SIM Status = 0x0
Send-to-Network Status = 0x0
Report-Outgoing-Message-Number:
Reference Number = 0
Result Code = 0x0
Diag Code = 0x0 0x0 0x0 0x0 0x0

SMS Archive URL =

Error Information
=================

Cached info is displayed

at!err

QDSP6 ARM9 (not saved)
00 64 uim 08480 00 01 hsu_conf_sel_nv 00572
01 FF gsnvif 00245 01 01 hsu_conf_sel_nv 00616
02 FF cmtask 01162 02 01 timer 03552
03 70 mmglbl 00392
04 70 gsnvif 00478
05 70 rr_init 01597
06 70 rr_init 01601
07 70 rrcdata 08026
08 01 gmmutil 01099
09 01 gmmutil 01118
10 01 gmmutil 01141
11 01 gmmutil 01156
12 01 gmmutil 01174
13 01 gmmutil 01198
14 13 rrcllcp 16550
15 03 rrccspf 02198
16 FF rrccsp 20686
17 2C gsdi 09787
18 01 gsdi_co 01538
19 6F cnlbs 03307

OK

at!gcdump

No crash data available

OK

Modem Crashdump Information
===========================
Modem crashdump logging: off

Richard Bradfield · ‎12-26-2016

You say load balancing is not working, it wont with your current config

ip route 0.0.0.0 0.0.0.0 Dialer1
ip route 0.0.0.0 0.0.0.0 Dialer2 100

its always going to use Dialer 1

to load balance would have to do something like

ip route 0.0.0.0 127.255.255.255 dialer 1

ip route 128.0.0.0 127.255.255.255 dialer 2

ip route 0.0.0.0 127.255.255.255 dialer 2 100

ip route 128.0.0.0 127.255.255.255 dialer 1 100

to split the Internet,

or you could use route maps to direct particular source traffic to specific interface.

Another problem you have with dialer interfaces is they always stay up so if you lost the ADSL connection the dialer would stay up and not swap across to the other interface

To overcome this with newer IOS releases there is a new command on the dialer interface which makes the dialer follow the virtual interface.

dialer down-with-vInterface