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3
Helpful
10
Replies

Setting up my 1811, but no Internet yet.

Daniel Jansma
Level 1
Level 1

Hi Guys,

On interface FA0 goes the UTP from my ISP.

Futher more I have setup my Vlan1 but i can't connect to the Internet.

What am I doing wrong:

Building configuration...

Current configuration : 3649 bytes

!

version 12.4

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname Router-1811

!

boot-start-marker

boot-end-marker

!

logging buffered 51200 warnings

enable secret 5

!

no aaa new-model

!

resource policy

!

mmi polling-interval 60

no mmi auto-configure

no mmi pvc

mmi snmp-timeout 180

ip subnet-zero

!

!

ip cef

no ip dhcp use vrf connected

ip dhcp excluded-address 192.168.100.0 192.168.100.100

!

ip dhcp pool DATA

   import all

   network 192.168.100.0 255.255.255.0

   dns-server 212.54.40.25

   default-router 192.168.100.254

   lease 8

!

!

ip name-server 212.54.40.25

ip name-server 212.54.35.25

ip ssh version 2

!

!

crypto pki trustpoint TP-self-signed-1623916396

enrollment selfsigned

subject-name cn=IOS-Self-Signed-Certificate-1623916396

revocation-check none

rsakeypair TP-self-signed-1623916396

!

!

crypto pki certificate chain TP-self-signed-1623916396

certificate self-signed 01

  30820244 308201AD A0030201 02020101 300D0609 2A864886 F70D0101 04050030

  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274

  69666963 6174652D 31363233 39313633 3936301E 170D3133 30313035 31363532

  35335A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649

  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D31 36323339

  31363339 3630819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281

  8100AD29 D515C443 92517F4B 903D97AC B3F744C0 93924489 1EBA9BD2 1C190B4B

  508A73A4 573A28DF F16F34CA 63597891 0D45E032 D9BA41E8 310CB984 D50C6C5F

  ED28F54B 928546F3 82A16C2D B20B27A7 62D151E7 FE782E18 5953E88E B0562053

  CA025DCE 256016A9 14E252D0 5EFCE00B 0C465FC6 C6D32468 78293624 B3C929F7

  B42D0203 010001A3 6C306A30 0F060355 1D130101 FF040530 030101FF 30170603

  551D1104 10300E82 0C526F75 7465722D 31383131 2E301F06 03551D23 04183016

  8014DFCF AC5FCFA1 06BB230A F1572513 1C6B9C10 D682301D 0603551D 0E041604

  14DFCFAC 5FCFA106 BB230AF1 5725131C 6B9C10D6 82300D06 092A8648 86F70D01

  01040500 03818100 4CD662F4 A0672668 3FF9F06A 8C5831DC 54702460 96564218

  A8A360F4 3E4849E5 341DA5A6 39B72549 2965DF3D 0DE03F18 081582CA CD13365E

  7F720EFE 35E4009D 1E169E19 69493B3E 0547DD4A 6CC4AADE 06AAFE42 57A4EC75

  B8921015 5808C313 67160206 5F4BDCB5 CE86BE59 A4D76930 768581C0 4F993CAA

  1A50842C 20BD9754

  quit

username admin privilege 15 password 0

!

!

!

!

!

!

interface FastEthernet0

description WAN

ip address dhcp

ip nat outside

ip virtual-reassembly

duplex auto

speed auto

!

interface FastEthernet1

no ip address

shutdown

duplex auto

speed auto

!

interface FastEthernet2

!

interface FastEthernet3

!

interface FastEthernet4

!

interface FastEthernet5

!

interface FastEthernet6

!

interface FastEthernet7

shutdown

!

interface FastEthernet8

shutdown

!

interface FastEthernet9

shutdown

!

interface Vlan1

description Lan2

ip address 192.168.100.254 255.255.255.0

ip nat inside

ip virtual-reassembly

ip tcp adjust-mss 1452

!

interface Async1

no ip address

encapsulation slip

!

ip classless

ip route 0.0.0.0 0.0.0.0 dhcp

!

ip dns server

!

ip http server

ip http authentication local

ip http secure-server

ip nat inside source list 1 interface FastEthernet0 overload

!

access-list 1 permit 192.168.100.0 0.0.0.255

!

!

!

!

control-plane

!

!

line con 0

line 1

modem InOut

stopbits 1

speed 115200

flowcontrol hardware

line aux 0

line vty 0 4

privilege level 15

password

login local

transport input telnet ssh

!

end

Thanks for your time.

1 Accepted Solution

Accepted Solutions

Hello daniel,

can you restart you isp modem/router -

res

Paul


Please rate and mark as an accepted solution if you have found any of the information provided useful.
This then could assist others on these forums to find a valuable answer and broadens the community’s global network.

Kind Regards
Paul

View solution in original post

10 Replies 10

Hello Daniel,

Please remove the nat statements from your interfaces.

Once you have established a connection dynamically or statically from you isp modem/router then you can apply other features such as nat.

res

Paul


Please rate and mark as an accepted solution if you have found any of the information provided useful.
This then could assist others on these forums to find a valuable answer and broadens the community’s global network.

Kind Regards
Paul

Hi Paul,

What good be the reason that i don't get an ip visible on FA0?

so the command to see what the ipaddress will be at the interface fa0:

router# show ip int brief

Interface                  IP-Address      OK? Method Status                Protocol

FastEthernet0              unassigned      YES DHCP   up                    up

FastEthernet1              unassigned      YES NVRAM  administratively down down

FastEthernet2              unassigned      YES unset  up                    up

FastEthernet3              unassigned      YES unset  up                    down

FastEthernet4              unassigned      YES unset  up                    up

FastEthernet5              unassigned      YES unset  up                    down

FastEthernet6              unassigned      YES unset  up                    up

FastEthernet7              unassigned      YES unset  administratively down down

FastEthernet8              unassigned      YES unset  administratively down down

FastEthernet9              unassigned      YES unset  administratively down down

Vlan1                      192.168.100.254 YES manual up                    up

Async1                     unassigned      YES NVRAM  down                  down

NVI0                       unassigned      YES unset  up                    up

Helllo Daniel,

Did you remove the nat statements?
also can you reload the isp modem/router or shutdown and restart your routers wan interface ?

res

Paul


Please rate and mark as an accepted solution if you have found any of the information provided useful.
This then could assist others on these forums to find a valuable answer and broadens the community’s global network.

Kind Regards
Paul

Hi Paul,

Yes i did and i have shutdown fa0 and restarted it again. Then again no visible ip.

Here is the lastest config:

  B8921015 5808C313 67160206 5F4BDCB5 CE86BE59 A4D76930 768581C0 4F993CAA

  1A50842C 20BD9754

  quit

username privilege 15 password 7

!

!

!

!

!

!

interface FastEthernet0

description WAN

ip address dhcp

ip virtual-reassembly

duplex auto

speed auto

!

interface FastEthernet1

no ip address

shutdown

duplex auto

speed auto

!

interface FastEthernet2

!

interface FastEthernet3

!

interface FastEthernet4

!

interface FastEthernet5

!

interface FastEthernet6

!

interface FastEthernet7

shutdown

!

interface FastEthernet8

shutdown

!

interface FastEthernet9

shutdown

!

interface Vlan1

description Lan2

ip address 192.168.100.254 255.255.255.0

ip tcp adjust-mss 1452

!

interface Async1

no ip address

encapsulation slip

!

ip classless

ip route 0.0.0.0 0.0.0.0 FastEthernet0

!

ip dns server

!

ip http server

ip http authentication local

ip http secure-server

!

!

!

!

!

control-plane

!

!

line con 0

line 1

modem InOut

stopbits 1

speed 115200

flowcontrol hardware

line aux 0

line vty 0 4

privilege level 15

password 7 120015041B07030A

login local

transport input telnet ssh

!

end

Hello daniel,

can you restart you isp modem/router -

res

Paul


Please rate and mark as an accepted solution if you have found any of the information provided useful.
This then could assist others on these forums to find a valuable answer and broadens the community’s global network.

Kind Regards
Paul

Hi Paul,

Yes I tried that but nothing happens.

Daniel

Hi Daniel,

setting the WAN interface as DHCP client can only work if the other side of the link is a modem/router that is doing xDSL

What is linked to your WAN  interface ?

Regards.

Alain

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.

Hi Alain,

its a cable modem from my ISP. I want to replace my Linksys for this Cisco 1811.

Thanks.

Daniel

Hi Guys,

Thanks for your replies, it helped me getting it work:

Current configuration : 3696 bytes

!

version 12.4

service timestamps debug datetime msec

service timestamps log datetime msec

service password-encryption

!

hostname Router-1811

!

boot-start-marker

boot-end-marker

!

logging buffered 51200 warnings

enable secret

!

no aaa new-model

!

resource policy

!

mmi polling-interval 60

no mmi auto-configure

no mmi pvc

mmi snmp-timeout 180

ip subnet-zero

!

!

ip cef

no ip dhcp use vrf connected

ip dhcp excluded-address 192.168.100.0 192.168.100.100

!

ip dhcp pool DATA

   import all

   network 192.168.100.0 255.255.255.0

   dns-server 212.54.40.25

   default-router 192.168.100.254

   lease 8

!

!

ip name-server 212.54.40.25

ip name-server 212.54.35.25

ip ssh version 2

!

!

crypto pki trustpoint TP-self-signed-1623916396

enrollment selfsigned

subject-name cn=IOS-Self-Signed-Certificate-1623916396

revocation-check none

rsakeypair TP-self-signed-1623916396

!

!

crypto pki certificate chain TP-self-signed-1623916396

certificate self-signed 01

  30820244 308201AD A0030201 02020101 300D0609 2A864886 F70D0101 04050030

  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274

  69666963 6174652D 31363233 39313633 3936301E 170D3133 30313035 31363532

  35335A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649

  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D31 36323339

  31363339 3630819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281

  8100AD29 D515C443 92517F4B 903D97AC B3F744C0 93924489 1EBA9BD2 1C190B4B

  508A73A4 573A28DF F16F34CA 63597891 0D45E032 D9BA41E8 310CB984 D50C6C5F

  ED28F54B 928546F3 82A16C2D B20B27A7 62D151E7 FE782E18 5953E88E B0562053

  CA025DCE 256016A9 14E252D0 5EFCE00B 0C465FC6 C6D32468 78293624 B3C929F7

  B42D0203 010001A3 6C306A30 0F060355 1D130101 FF040530 030101FF 30170603

  551D1104 10300E82 0C526F75 7465722D 31383131 2E301F06 03551D23 04183016

  8014DFCF AC5FCFA1 06BB230A F1572513 1C6B9C10 D682301D 0603551D 0E041604

  14DFCFAC 5FCFA106 BB230AF1 5725131C 6B9C10D6 82300D06 092A8648 86F70D01

  01040500 03818100 4CD662F4 A0672668 3FF9F06A 8C5831DC 54702460 96564218

  A8A360F4 3E4849E5 341DA5A6 39B72549 2965DF3D 0DE03F18 081582CA CD13365E

  7F720EFE 35E4009D 1E169E19 69493B3E 0547DD4A 6CC4AADE 06AAFE42 57A4EC75

  B8921015 5808C313 67160206 5F4BDCB5 CE86BE59 A4D76930 768581C0 4F993CAA

  1A50842C 20BD9754

  quit

username privilege 15 password 7

!

!

!

!

!

!

interface FastEthernet0

description WAN

ip address dhcp

ip nat outside

ip virtual-reassembly

duplex auto

speed auto

!

interface FastEthernet1

no ip address

shutdown

duplex auto

speed auto

!

interface FastEthernet2

!

interface FastEthernet3

!

interface FastEthernet4

!

interface FastEthernet5

!

interface FastEthernet6

!

interface FastEthernet7

shutdown

!

interface FastEthernet8

shutdown

!

interface FastEthernet9

shutdown

!

interface Vlan1

description Lan2

ip address 192.168.100.254 255.255.255.0

ip nat inside

ip virtual-reassembly

ip tcp adjust-mss 1452

!

interface Async1

no ip address

encapsulation slip

!

ip classless

ip route 0.0.0.0 0.0.0.0 dhcp

!

ip dns server

!

ip http server

ip http authentication local

ip http secure-server

ip nat inside source list 100 interface FastEthernet0 overload

!

access-list 100 permit ip 192.168.100.0 0.0.0.255 any

!

!

!

!

control-plane

!

!

line con 0

line 1

modem InOut

stopbits 1

speed 115200

flowcontrol hardware

line aux 0

line vty 0 4

privilege level 15

password 7

login local

transport input telnet ssh

!

end

tobyarnett
Level 1
Level 1

Danielle,

If this is a typical cable modem from your ISP you will likely always recieve the same dhcp public ip on your linksys. Have you tried to manually configure that public IP on your 1811?

Toby


Sent from Cisco Technical Support Android App

-Toby


Please don't forget to rate any helpful post.

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