01-19-2013 10:15 AM - edited 03-04-2019 06:46 PM
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.
Solved! Go to Solution.
01-20-2013 01:42 AM
Hello daniel,
can you restart you isp modem/router -
res
Paul
01-19-2013 10:34 AM
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
01-20-2013 01:15 AM
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
01-20-2013 01:20 AM
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
01-20-2013 01:28 AM
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
01-20-2013 01:42 AM
Hello daniel,
can you restart you isp modem/router -
res
Paul
01-20-2013 03:08 AM
Hi Paul,
Yes I tried that but nothing happens.
Daniel
01-20-2013 03:07 AM
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.
01-20-2013 03:15 AM
Hi Alain,
its a cable modem from my ISP. I want to replace my Linksys for this Cisco 1811.
Thanks.
Daniel
01-20-2013 03:56 AM
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
01-20-2013 06:40 AM
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
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