06-27-2004 11:07 AM - edited 03-02-2019 04:39 PM
Hi,
I bought a cisco 837 router. My adsl connection has a single public IP (82.X.X.130) and also another set of IP addresses from 81.X.X.56 to 81.X.X.63 (netmask 255.255.255.248).
The java-based configuration utility shipped with the router allows me to set-up the NAT and some firewall rules, BUT I simply want the router to route all traffic to the inside, with NO nat and NO firewall whatsoever!
In fact, my goal is simply to have a pc (connected to the router) with address 81.X.X.57 that receives it's packets from the Internet...
I am a newbie and I'd like some help to setup such a simple scenario, I think I have to use CLI but I have no clue.
Thanks to all in advance
06-27-2004 12:09 PM
Hello,
can you access the command line and post the output of ´show run´ ?
Regards,
Georg
06-27-2004 04:28 PM
Hi Georg,
I'll do it early tomorrow morning, and I'll post the output here.
Thank you in advance for your help
06-28-2004 05:18 AM
Hi, the output of show run is:
-----------------------
Current configuration : 1288 bytes
!
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname admin
!
logging queue-limit 100
enable secret 5 $1$T6AO$gcK6oNWO9Gsx/WYS6HDkB.
!
username admin password 7 025756085F5359
ip subnet-zero
ip name-server 151.99.125.2
ip name-server 151.99.125.3
ip dhcp excluded-address 81.X.X.57
!
!
ip audit notify log
ip audit po max-events 100
no ftp-server write-enable
!
!
!
!
!
!
!
interface Ethernet0
ip address 10.10.10.1 255.255.255.0
ip nat inside
no ip mroute-cache
hold-queue 100 out
!
interface ATM0
no ip address
atm vc-per-vp 64
no atm ilmi-keepalive
dsl operating-mode auto
!
interface ATM0.1 point-to-point
ip address 81.X.X.58 255.255.255.248
ip nat outside
pvc 8/35
encapsulation aal5snap
!
!
ip nat inside source list 102 interface ATM0.1 overload
ip nat inside source static 81.X.X.57 interface ATM0.1
ip classless
ip route 0.0.0.0 0.0.0.0 ATM0.1
ip http server
no ip http secure-server
!
access-list 23 permit 10.10.10.0 0.0.0.255
access-list 102 permit ip 10.10.10.0 0.0.0.255 any
!
line con 0
exec-timeout 120 0
no modem enable
stopbits 1
line aux 0
stopbits 1
line vty 0 4
access-class 23 in
exec-timeout 120 0
login local
length 0
!
scheduler max-task-time 5000
!
end
-----------------------
It is the result of the configuration made with the java utility... so far in practice I have a double nat (LAN => linux fw (192.168.1.2)->(10.10.10.3) => cisco 837 (10.10.10.1)->(81.X.X.58) => Internet
But all I'd like to have is simply the cisco that routes ALL the packets it receives into the internal lan (where there is a linux fw machine connected directly to it with an interface with a public ip address taken from the range of public ips' assigned to us)
Thank you in advance for your help!
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