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LAN to WAN issue / no route to go on internet ...

Elrick Landon
Level 1
Level 1

‎09-14-2015 03:20 PM - edited ‎03-08-2019 01:46 AM

Hi to all,

 

I setup my Cisco C887, a router/adsl device but i'm not able to go out from LAN to WAN... doesn't seems to be routed.

From LAN, i can ping my router on 192.168.1.1, but i'm not able to go to internet... Nothing is routed.

I paste my configuration :


version 15.0
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
!
!
no aaa new-model
!
!
memory-size iomem 10
!
!
ip source-route
!
!
ip cef
no ipv6 cef
!
!
multilink bundle-name authenticated
license udi pid CISCO887-SEC-K9 sn FCZ1416XXXX
!
!
!
bridge irb
!
!
!
interface BRI0
 no ip address
 ip broadcast-address 0.0.0.0
 encapsulation hdlc
 shutdown
 isdn termination multidrop
 !
!
interface ATM0
 no ip address
 ip flow ingress
 no atm ilmi-keepalive
 dsl operating-mode adsl2+
 bridge-group 1
 !
 pvc 8/36
  encapsulation aal5snap
 !
!
interface FastEthernet0
 !
!
interface FastEthernet1
 !
!
interface FastEthernet2
 !
!
interface FastEthernet3
 !
!
interface Vlan1
 ip address 192.168.1.1 255.255.255.0
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 ip flow ingress
 ip nat inside
 ip virtual-reassembly
 no ip route-cache cef
 !
!
interface BVI1
 ip address dhcp
 ip virtual-reassembly
 !
!
no ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
no cdp run

!
!
!
control-plane
 !
!
bridge 1 protocol ieee
bridge 1 route ip
!
line con 0
 no modem enable
line aux 0
line vty 0 4
 login
!
scheduler max-task-time 5000
end

 

A show ip interface brief result :

Interface                  IP-Address      OK? Method Status                Protocol
ATM0                       unassigned      YES NVRAM  up                    up
BRI0                       unassigned      YES NVRAM  administratively down down
BRI0:1                     unassigned      YES unset  administratively down down
BRI0:2                     unassigned      YES unset  administratively down down
BVI1                       87.90.XXX.XXX    YES DHCP   up                    up
FastEthernet0              unassigned      YES unset  up                    down
FastEthernet1              unassigned      YES unset  up                    down
FastEthernet2              unassigned      YES unset  up                    down
FastEthernet3              unassigned      YES unset  up                    up
NVI0                       unassigned      YES unset  administratively down down
Vlan1                      192.168.1.1     YES manual up                    up
 

Many thks for your help

 

Best Regards.

Labels:
0 Helpful
4 Replies 4

Richard Bradfield
Level 6
Level 6

‎09-14-2015 07:48 PM

Hi Elrick,

A number of things 

1) I don't see any IP NAT outside, which by the looks of things should be on your BVI1 interface

2) no default route should be something like "ip route 0.0.0.0 0.0.0.0 BVI1" (or an Internet address that is connected to BVi1) or is there a gateway provided by the DHCP configuration?

3) need to implement the NAT need the following

access-list 101 permit ip 192.168.1.0 0.0.0.255 any

ip nat inside source list 101 interface BVI1 overload

HTH

Richard.

 

0 Helpful

Elrick Landon
Level 1
Level 1
In response to Richard Bradfield

‎09-14-2015 10:16 PM

Hi,

 

I modify the configuration but "Protocol" is down on VLAN1 interface ... so there is no way possible to ping the router from LAN.

I need to reboot to see up, how can i fix it always up ?

show ip interface brief result :

 

Interface                  IP-Address      OK? Method Status                Protocol
ATM0                       unassigned      YES NVRAM  up                    up
BRI0                       unassigned      YES NVRAM  administratively down down
BRI0:1                     unassigned      YES unset  administratively down down
BRI0:2                     unassigned      YES unset  administratively down down
BVI1                       87.90.XXX.XXX    YES DHCP   up                    up
FastEthernet0              unassigned      YES unset  up                    down
FastEthernet1              unassigned      YES unset  up                    down
FastEthernet2              unassigned      YES unset  up                    down
FastEthernet3              unassigned      YES unset  up                    up
NVI0                       unassigned      YES unset  administratively down down
Vlan1                      192.168.1.1     YES manual up                    down

 

After a reboot, it works with this configuration below, but downloadstream are slow, is there any way to optimise it with SNR change for example ?

Does my config is optimised ?

 

Configuration is :

 

version 15.0
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
!
!
no aaa new-model
!
!
!
memory-size iomem 10
!
!
ip source-route
!
!
!
!
ip cef
no ipv6 cef
!
!
multilink bundle-name authenticated
license udi pid CISCO887-SEC-K9 sn FCZ1416XXXX
!
!
!
!
!
!
!
bridge irb
!
!
!
!
interface BRI0
 no ip address
 ip broadcast-address 0.0.0.0
 encapsulation hdlc
 shutdown
 isdn termination multidrop
 !
!
interface ATM0
 no ip address
 ip flow ingress
 no atm ilmi-keepalive
 dsl operating-mode adsl2+
 bridge-group 1
 !
 pvc 8/36
  encapsulation aal5snap
 !
!
interface FastEthernet0
 !
!
interface FastEthernet1
 !
!
interface FastEthernet2
 !
!
interface FastEthernet3
 !
!
interface Vlan1
 ip address 192.168.1.1 255.255.255.0
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 ip flow ingress
 ip nat inside
 ip virtual-reassembly
 no ip route-cache cef
 !
!
interface BVI1
 ip address dhcp
 ip nat outside
 ip virtual-reassembly
 !
!
no ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip nat inside source list 101 interface BVI1 overload
!
access-list 101 permit ip 192.168.1.0 0.0.0.255 any
no cdp run

!
!
!
!
!
control-plane
 !
!
bridge 1 protocol ieee
bridge 1 route ip
!
line con 0
 no modem enable
line aux 0
line vty 0 4
 login
!
scheduler max-task-time 5000
end

 

Best Regards

 

 

0 Helpful

Richard Bradfield
Level 6
Level 6
In response to Elrick Landon

‎09-14-2015 10:43 PM

basically for  vlan1 to be up there must be something connected to one of the fast Ethernet ports

0 Helpful

Elrick Landon
Level 1
Level 1
In response to Richard Bradfield

‎09-15-2015 09:28 AM

I wake up my workstation from standby, in this case, windows take 15 secondes to activate & refresh ethernet interface...

I see it Fast Ethernet internet interface up from my router but vlan1 is still down on protocol part.

There is no way to pass it up, i must restart my router to recover Vlan1 up...

 

So i figure that it can be possible to fix it up ... but if it cannot, what can i do ? Restart my router all days ? ; (

 

Regards.

0 Helpful
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