Question

Changing Static IP Settings on cisco pix

Asked by: kymd26

I need to change the static IP settings on a cisco pix
The old address is 61.88.74.119
the new address settings:
IP - 111.235.128.98
Subnet - 255.255.255.0
Gateway - 111.235.128.254

DNS - 111.235.130.1
DNS - 111.235.130.2

Below is a print out of the current pix configuration

if you could let me the the commands to change this that would be great

regards

: Saved
:
PIX Version 6.3(3)
interface ethernet0 auto
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password K2X5XnyhSX5ZOI.n encrypted
passwd K2X5XnyhSX5ZOI.n encrypted
hostname ******
domain-name *******
fixup protocol dns maximum-length 512
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol tftp 69
names
access-list CiscoClient_splitTunnelAcl permit ip 192.168.0.0 255.255.255.0 any
access-list inside_outbound_nat0_acl permit ip 192.168.0.0 255.255.255.0 192.168
.254.0 255.255.255.0
access-list outside_cryptomap_dyn_20 permit ip any 192.168.254.0 255.255.255.0
pager lines 24
logging on
logging buffered debugging
mtu outside 1492
mtu inside 1500
ip address outside 61.88.74.119 255.255.255.224
ip address inside 192.168.0.254 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool CiscoPool 192.168.254.1-192.168.254.254
pdm location 203.8.104.0 255.255.255.0 outside
pdm location 192.168.0.0 255.255.255.0 inside
pdm location 192.168.254.0 255.255.255.0 inside
pdm location 192.168.0.0 255.255.0.0 inside
pdm location 203.8.104.0 255.255.255.0 inside
pdm location 192.168.245.0 255.255.255.0 outside
pdm location 203.25.77.0 255.255.255.0 outside
pdm location 203.25.77.0 255.255.255.0 inside
pdm logging informational 100
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list inside_outbound_nat0_acl
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
static (inside,outside) tcp 61.88.74.119 smtp 192.168.0.1 smtp netmask 255.255.2
55.255 0 0
static (inside,outside) tcp 61.88.74.119 3389 192.168.0.1 3389 netmask 255.255.2
55.255 0 0
route outside 0.0.0.0 0.0.0.0 61.88.74.126 1
timeout xlate 0:05:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00
timeout h323 0:05:00 mgcp 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server RADIUS protocol radius
aaa-server LOCAL protocol local
ntp server 192.189.54.33 source outside prefer
http server enable
http 203.8.104.0 255.255.255.0 outside
http 192.168.0.0 255.255.0.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto dynamic-map outside_dyn_map 20 match address outside_cryptomap_dyn_20
crypto dynamic-map outside_dyn_map 20 set transform-set ESP-3DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map
crypto map outside_map client authentication LOCAL
crypto map outside_map interface outside
isakmp enable outside
isakmp key ******** address 61.88.74.119 netmask 255.255.255.255
isakmp policy 20 authentication pre-share
isakmp policy 20 encryption 3des
isakmp policy 20 hash md5
isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
vpngroup CiscoClient address-pool CiscoPool
vpngroup CiscoClient dns-server 61.88.74.65 61.88.88.88
vpngroup CiscoClient default-domain chm.internal
vpngroup CiscoClient split-tunnel CiscoClient_splitTunnelAcl
vpngroup CiscoClient idle-time 1800
vpngroup CiscoClient password ********
telnet 203.8.104.0 255.255.255.0 outside
telnet 192.168.0.0 255.255.0.0 inside
telnet 192.168.0.0 255.255.255.0 inside
telnet 203.25.77.0 255.255.255.0 inside
telnet timeout 5
ssh 203.8.104.0 255.255.255.0 outside
ssh 192.168.0.0 255.255.0.0 inside
ssh 203.25.77.0 255.255.255.0 inside
ssh timeout 10
console timeout 10
dhcpd address 192.168.0.100-192.168.0.150 inside
dhcpd dns 61.88.74.65 61.88.88.88
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd domain chm.internal
dhcpd auto_config outside
dhcpd enable inside
username ClientVPN password cvsKD.Wtvq6/LQ3M encrypted privilege 3
username andersonmorgan password 6EPchOg361USAeZd encrypted privilege 2
terminal width 80
Cryptochecksum:d85e65957a62bac5a4e0629183999fc3
: end

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Asked On: 2009-09-28 at 19:15:08ID24768864
Tags: Cisco Pix
,; static ip configuration
Topics: Virtual Private Networking (VPN)
,; Network Routers
,; Cisco PIX Firewall
Participating Experts: 4
Points: 500
Comments: 5

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Answers

by: ricks_vPosted on 2009-09-28 at 19:31:00ID: 25445544

Make sure you create a backup config, then drop the following command to change ip and gateway:

no ip address outside 61.88.74.119 255.255.255.224
no ip address outside 111.235.128.254 255.255.255.0

route outside 0.0.0.0 0.0.0.0 61.88.74.126 1
route outside 0.0.0.0 0.0.0.0 111.235.128.254

hope this helps

by: Darkstriker69Posted on 2009-09-28 at 19:33:38ID: 25445561

config t
ip address outside 111.235.128.98 255.255.255.0
no route outside 0.0.0.0 0.0.0.0 61.88.74.126 1
route outside 0.0.0.0 0.0.0.0 111.235.128.254
no dhcpd dns 61.88.74.65 61.88.88.88
dhcpd dns 111.235.130.1 111.235.130.2

You have a few static nats set but I do not see the matching access-lists to allow this traffic in. To change them you would do:

no static (inside,outside) tcp 61.88.74.119 smtp 192.168.0.1 smtp netmask 255.255.255.255 0 0
no static (inside,outside) tcp 61.88.74.119 3389 192.168.0.1 3389 netmask 255.255.255.255 0 0
static (inside,outside) tcp 111.235.128.98 smtp 192.168.0.1 smtp netmask 255.255.255.255 0 0
static (inside,outside) tcp 111.235.128.98 3389 192.168.0.1 3389 netmask 255.255.255.255 0 0

you also have a site 2 site VPN so the peer settings will need to be changed on the other firewall.

and of course:

write mem

This should not be done remotely (throught ssh, telnet asdm etc)

Good Luck

by: rkrug8421Posted on 2009-09-28 at 19:33:43ID: 25445562

Try this:

! Set the IP address:
ip address outside 111.235.128.98 255.255.255.0
!
! I don't see the access-list permitting this, so these statics probably don't work
! anyway:
no static (inside,outside) tcp 61.88.74.119 smtp 192.168.0.1 smtp netmask 255.255.255.255 0 0
no static (inside,outside) tcp 61.88.74.119 3389 192.168.0.1 3389 netmask 255.255.255.255 0 0
static (inside,outside) tcp interface smtp 192.168.0.1 smtp netmask 255.255.255.255 0 0
static (inside,outside) tcp interface 3389 192.168.0.1 3389 netmask 255.255.255.255 0 0
! Remove the old route:
no route outside 0.0.0.0 0.0.0.0 61.88.74.126 1
! Add the new:
route outside 0.0.0.0 0.0.0.0 111.235.128.254 1
 
! This is used with your VPN users:
vpngroup CiscoClient dns-server 111.235.130.1 111.235.130.2
!
! Update DHCP so your clients are assigned the new DNS servers
dhcpd dns 111.235.130.1 111.235.130.2

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by: ricks_vPosted on 2009-09-28 at 19:36:26ID: 25445573

sorry, forgot mention, you will need also the following to update your dns and nat rule

no static (inside,outside) tcp 61.88.74.119 smtp 192.168.0.1 smtp netmask 255.255.255.255 0 0
static (inside,outside) tcp 111.235.128.254 smtp 192.168.0.1 smtp netmask 255.255.255.255 0 0

no static (inside,outside) tcp 61.88.74.119 3389 192.168.0.1 3389 netmask 255.255.255.255 0 0
static (inside,outside) tcp 111.235.128.254 3389 192.168.0.1 3389 netmask 255.255.255.255 0 0

no vpngroup CiscoClient dns-server 61.88.74.65 61.88.88.88
vpngroup CiscoClient dns-server 111.235.130.1 111.235.130.2

no dhcpd dns 61.88.74.65 61.88.88.88
dhcpd dns 111.235.130.1 111.235.130.2

no dhcpd dns 61.88.74.65 61.88.88.88
dhcpd dns 111.235.130.1 111.235.130.2

by: ikalmarPosted on 2009-09-28 at 20:54:00ID: 25445880

And don't forget after you applied new staic 'clear xlate' command!

20120131-EE-VQP-002

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Changing Static IP Settings on cisco pix

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