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internet setup doubt

wajid dabir
Level 1
Level 1

attached document is my network diagram for wireless user.

1.i have /30 public IP for my WAN interface

2.i also have /29 Public IPS for LAN segment.

3.i have /24 private IPS for my internal network.

my doubt is how do i do natting on router.on LAN port of router which IP to be configure(public 0r private).

kindly any one send me the configuration to be done on router and switch,so the my internet will work.

2 Replies 2

John Blakley
VIP Alumni
VIP Alumni

I'm assuming that you're only going to need to nat the 10.x.x.x subnet since your provider knows how to get to your lan side "public side" addresses. NAT is needed when the provider has no knowledge of your internal addressing. That being said, you'd need to configure for the 10.x.x subnet and not really worry about the others. You haven't posted your router config, so I'm assuming that your router has subinterfaces to support the 10.x.x.x subnet since you have L2 switches in your diagram.

access-list 101 permit ip 10.60.9.0 0.0.0.255

ip nat inside source list 101 interface f0/0 overload

int fa0/0

ip nat outside

int fa0/1

ip address 123.63.x.x 255.x.x.x

int fa0/1.10

ip address 10.60.9.x 255.x.x.x

ip nat inside

If this isn't the way you're set up, we may need to know a little more information.

HTH,
John

*** Please rate all useful posts ***

HTH, John *** Please rate all useful posts ***

access-list 101 permit ip 10.60.9.0 0.0.0.255

ip nat inside source list 101 interface f0/0 overload

int fa0/0

IP Address (Public IP Segment /32)

ip nat outside

int fa0/1

IP Address (/24 Internal LAN Segment IP)

ip nat inside

IP Access-list Extend NAT

Permit IP (/24 Internal LAN Segment IP ) any

ip route 0.0.0.0 0.0.0.0 int Fa 0/0

For Using /29 Public IP Segment

u can do Static NAT

like

IP NAT INSDIE soure static (/24 Segement Any Local IP) (/29 Segment any Public IP)

Jawad