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Helpful
3
Replies

Failover between ISP Fiber and LTE - Cisco 899G-LTE.

GuSilva91
Level 1
Level 1

Hey guys.
I need help configuring a

Cisco 899G-LTE

for two incoming internet connections.

1st VIVO Fiber (Primary)
A network cable will come out of the modem and connect to the WAN interface of the

899G-LTE router (GigabitEthernet9)
Local IPv4 address: 192.168.15.1
Public IPv4 address: 201.68.175.151
Default Gateway: 187.100.231.14
____________________________________________________________________

2nd 4G / LTE Cellular Operator (Secondary)
It will assume as soon as the disconnection/lack of internet of the

GigabitEthernet9

interface is identified.
____________________________________________________________________

I've already looked for several alternatives in forums but I haven't found any that suit me exactly this way.
I'm reading some docs about IP SLA but I still don't understand much.

 

This is my configuration:

cellular 0 lte profile create 1 zap.vivo.com.br pap vivo vivo
!
ip dhcp excluded-address 192.168.200.1 192.168.200.6
!
ip dhcp pool LAN_POOL
 network 192.168.200.0 255.255.255.0
 default-router 192.168.200.1
 dns-server 8.8.8.8 8.8.4.4
 domain-name Home
!
ip cef
ipv6 unicast-routing
ipv6 cef
!
multilink bundle-name authenticated
!
chat-script lte "" "AT!CALL" TIMEOUT 20 "OK"
!
license udi pid C899G-LTE-LA-K9 sn FJC2249L1H3
!
spanning-tree portfast bpduguard
!
redundancy
!
controller Cellular 0
 lte sim data-profile 1 attach-profile 1 slot 0
 lte sim fast-switchover enable
 lte sim max-retry 60
 lte modem link-recovery disable
!
!
interface Cellular0
 description Conexao 4G
 ip address negotiated
 ip nat outside
 ip virtual-reassembly in
 encapsulation slip
 ip tcp adjust-mss 1460
 dialer in-band
 dialer string lte
 dialer-group 1
!
interface Cellular1
 no ip address
 encapsulation slip
 shutdown
!
interface range GigabitEthernet0-7
 description LAN Ports
 switchport access vlan 10
 switchport mode access
 no ip address
 spanning-tree portfast
!
!
interface GigabitEthernet8
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface GigabitEthernet9
 no ip address
 duplex auto
 speed auto
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan10
 ip address 192.168.200.1 255.255.255.0
 ip nat inside
 ip virtual-reassembly in
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
ip nat inside source list BKP interface Cellular0 overload
ip route 0.0.0.0 0.0.0.0 Cellular0
!
ip access-list extended BKP
 permit ip 192.168.200.0 0.0.0.255 any
!
dialer-list 1 protocol ip permit
ipv6 ioam timestamp
!
control-plane
!
mgcp behavior rsip-range tgcp-only
mgcp behavior comedia-role none
mgcp behavior comedia-check-media-src disable
mgcp behavior comedia-sdp-force disable
!
mgcp profile default
!
line con 0
 exec-timeout 0 0
 no modem enable
line aux 0
line 2
 no activation-character
 no exec
 transport preferred none
 stopbits 1
line 3
 script dialer lte
 no exec
 rxspeed 150000000
 txspeed 50000000
line 8
 no exec
line vty 0 4
 login
 transport input none
!
scheduler allocate 20000 1000
!
end
1 Accepted Solution

Accepted Solutions

GuSilva91
Level 1
Level 1

Hi @balaji.bandi .

I got Failover working thanks to your help!
I'm adding my current settings for others to use in their future projects.
If you have any observations that can improve the script in any way, I'll be grateful!
once again thank you very much for your help!

View solution in original post

3 Replies 3

GuSilva91
Level 1
Level 1

Hi @balaji.bandi .

I got Failover working thanks to your help!
I'm adding my current settings for others to use in their future projects.
If you have any observations that can improve the script in any way, I'll be grateful!
once again thank you very much for your help!

glad all working good as expected/.

BB

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