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Configuring NAT-POOL Cisco 2501

nanohurtz
Level 1
Level 1

I've inherited a network that includes a cisco 2501. One of the server ip's has changed from 192.168.0.1 to 192.168.0.2 and I need to edit the nat-pool to get emails from outside the network. I can't figure out how to edit lines in the router.

Can someone tell me what are the specific command lines to edit an entry in the nat-pool highlighted by the "<<<<< EDIT" marker.

Building configuration...

Current configuration:

!

version 12.0

service timestamps debug uptime

service timestamps log uptime

service password-encryption

!

hostname Router

!

enable password 7 071828405A0617544742

!

ip subnet-zero

ip name-server 141.151.0.68

!

!

!

interface Ethernet0

description connected to VCF

ip address 192.168.0.6 255.255.255.128

ip helper-address 192.168.0.1 <<<<< EDIT

no ip directed-broadcast

ip nat inside

!

interface Serial0

description connected to Point-to-Point Philadelphia 11/HCGS/276573//DS

ip address 141.151.50.190 255.255.255.252

no ip directed-broadcast

ip nat outside

!

interface Serial1

description connected to bibleschool

ip address 192.168.1.1 255.255.255.252

no ip directed-broadcast

ip nat inside

!

router rip

version 2

passive-interface Serial0

network 192.168.0.0

network 192.168.1.0

no auto-summary

!

ip nat pool GWWM-natpool-1 141.151.33.13 141.151.33.14 netmask 255.255.255.240

ip nat inside source list 1 pool GWWM-natpool-1 overload

ip nat inside source static 192.168.0.112 141.151.33.3

ip nat inside source static 192.168.0.6 141.151.33.1

ip nat inside source static 192.168.0.1 141.151.33.2 <<<<< EDIT

ip nat inside source static 192.168.0.8 141.151.33.6

ip nat inside source static 192.168.0.12 141.151.33.12

ip nat inside source static 192.168.0.7 141.151.33.5

ip nat inside source static 192.168.0.14 141.151.33.7

ip nat inside source static 192.168.0.16 141.151.33.8

ip nat inside source static 192.168.0.130 141.151.33.9

ip nat inside source static 192.168.0.10 141.151.33.11

ip classless

ip forward-protocol udp 135

ip route 0.0.0.0 0.0.0.0 Serial0

!

access-list 1 permit 192.168.0.0 0.0.0.127

access-list 1 permit 192.168.1.0 0.0.0.3

access-list 1 permit 192.168.0.128 0.0.0.15

snmp-server community public RO

!

line con 0

exec-timeout 0 0

password 7 13061F07190F0C

login

transport input none

line aux 0

line vty 0 4

password 7 01100E1149080E

login

!

end

3 Replies 3

rwcrowe
Level 1
Level 1

no ip nat inside source static 192.168.0.1 141.151.33.2

ip nat inside source static 192.168.0.2 141.151.33.2

clear ip nat translation * (just to make sure it takes effect)

o.k. *but how* do I enter/commit these command lines into the 2501's memory. I think this is missing quite a few steps. Can someone elaborate. I'm kind of looking for a step-by-step here..

hi

enable

conf t

no ip nat inside source static 192.168.0.1 141.151.33.2

ip nat inside source static 192.168.0.2 141.151.33.2

exit

clear ip nat trans

wr mem