2600 Router Config 1

[helmetknob]

Hello all -

I'm the network admin for a small company and am not a router guy...although I sure have been learning ALOT over the last few days.

I have configged both FE0/1 & 0/0 with the correct IP address and subnet mask and can ping both INTs from in and outside but cannot surf. I had this working ONCE the other day but cannot get it going again! Is there one command I am missing that will permit routing between the 2 interfaces? thanks for any clues/hints/tips you may have!

 

[helmetknob]

nope.

 

[helmetknob]

nothing else connected to this router,the isp on E0 and just one laptop on E1.

 

[Minue]

Hi
The default route is perfect!You do't need the command ip default-gateway.
You didn't rely to question about your workstation having the correct gateway !In your Windows TCP settings check to see if you have your FA0/1 address as the gateway,and the correct DNS setting.
Regards

 

[helmetknob]

yes the gateway on the laptop is the IP address of e0/1 and it pings out fine to e0/1

 

[helmetknob]

dns is correct too

 

[Minue]

Hi
Re-check your config for typing errors.Your laptop should at least be able to ping the interface FastEthernet0/0 .Did you updated the config since you last posted it?
Regards

 

[bonafide247]

This may not make a huge deal, but I would suggest you change your inside interface and inside computer to a private class address (see below):

10.0.0.0 – 10.255.255.255
172.16.0.0 – 172.31.255.255
192.168.0.0 – 192.168.255.255

I'm not sure if this will make a difference, but helps to stick with the standards.

 

[helmetknob]

thanks for the tip but i need to use valid IPs as this routes for customers. f*&^cking thing still won't route. waiting on Cisco now. this config is the culmination of many suggestions

Router>enable
Password:
Password:
Router#show config
Using 599 out of 29688 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router
!
enable password XXXXX
!
ip subnet-zero
!
!
ip name-server 75.16.26.4
!
!
!
!
interface FastEthernet0/0
ip address 71.133.200.234 255.255.255.252
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 76.238.142.201 255.255.255.248
duplex auto
speed auto
!
ip classless
ip route 0.0.0.0 0.0.0.0 FastEthernet0/0
ip route 0.0.0.0 0.0.0.0 71.133.200.233
ip http server
ip pim bidir-enable
!
!
line con 0
line aux 0
line vty 0 4
password XXXXX
login
!
end

Router#

 

[burtsbees]

You said you cannot surf, and the ISA is doing the NAT...what about temporarily hooking a laptop traight to the ISA box? If it has a NIC with no switch, don't forget to use a crossover cable, and not a regular straight-thru cable. If it is a switch, then use a straight-thru. If it is a hub, and not a "smart" hub, you will need a crosover for this as well.

Burt

 

[helmetknob]

i have nothing on the LAN side save for the laptop I am trying to surf with.

 

[burtsbees]

So, when you say surf, then
a)You can't browse web pages on the internet
b)You can ping internet addresses
c)The laptop is the only thing you cannot browse the internet with
Is this accurate?
Sorry for the confusion...

Burt

 

[helmetknob]

no no no! no apology required! the laptop can ping the LAN side IP, but not the WAN side or beyond.

 

[burtsbees]

router(config)#no ip route 0.0.0.0 0.0.0.0 71.133.200.233
Just to be clear on the topology...

71.133.200.233(ISP)---71.133.200.234(fa0/0)-76.238.142.201(fa0/1)--hub---laptop
Right? Not a switch?
Can any of the other LAN nodes ping the outside? Can the laptop ping 75.16.26.4?

Burt

 

[helmetknob]

totally correct. "I get a destination host unreachable" no matter where i try to go on the laptop. from within the router it goes everywhere.

 

[burtsbees]

But can you ping the dns server? You can also try to ping from the router to the laptop with an extended ping...just type
router#ping
with no address...it will ask for the source interface---put in the IP address of fa0/0. If this does not work, then I would try a private IP address on the router's int fa0/1, and a private IP in the same range on the laptop, and a simple NAT config...just for ships and grins. Can I say ship? Anyway, I'm sure you're saying much worse by now...
I would even try switching the IP addresses between the interfaces, and switching the cables around too, making int fa0/0 face the laptop and fa0/1 face the internet. If NAT works in the router, but public IP's don't, then it could be some goofy bug in the IOS...what version IOS is it? Please post a sh ver.

Burt

 

[helmetknob]

here's the version:

Router#show ver
Cisco Internetwork Operatin
IOS (tm) C2600 Software (C2600-I-M), Version 12.2(10b), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Thu 11-Jul-02 19:00 by pwade
Image text-base: 0x80008088, data-base: 0x809C4E80

ROM: System Bootstrap, Version 12.2(6r), RELEASE SOFTWARE (fc1)

Router uptime is 4 days, 15 minutes
System returned to ROM by reload
System image file is "flash:c2600-i-mz.122-10b.bin"

cisco 2621 (MPC860) processor (revision 0x00) with 27648K/5120K bytes of memory.

Processor board ID JAD06080HSB (2963123799)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
2 FastEthernet/IEEE 802.3 interface(s)
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

Router#

 

[burtsbees]

That's barely IP Base code, if it is even that...do you have any other images? Did you try the NAT config with a private IP like I suggested?

Burt

 

[helmetknob]

thanks for the heads up BurtsBees. I am now waiting on a contract from Cisco so I can ge the newest IOS. They are none to quick though...