Question

If I use this: ip nat inside source static

Asked by: royaltech

If I use this: ip nat inside source static  x.x.x.x. x.x.x.x, can I still add other entries for other ports that may go to other nodes on my inner lan? or how could I just specifiy a port range with this command?

Thanks,
Corey

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Asked On
2007-01-02 at 21:30:56ID22109079
Tags

nat

,

source

,

ip

,

inside

,

static

Topic

Network Routers

Participating Experts
2
Points
250
Comments
4

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Answers

 

by: lrmoorePosted on 2007-01-03 at 04:27:59ID: 18234509

No. That is a 1-1 static and you cannot use the same public to other internal hosts for other ports.
You have to use
 ip nat inside source static tcp a.b.c.d 80 1.2.3.4 80

Unfortunately, there is no range command so you have to do each and every port on a separate line.
 

 

by: rsivanandanPosted on 2007-01-03 at 06:35:23ID: 18235267

Agree with Lrmoore; to suppliment the usage, take a look at the following, it is different usage of nat inside;

ip nat source

To enable Network Address Translation (NAT) on a virtual interface without inside or outside specification, use the ip nat source command in global configuration mode.

Dynamic NAT

ip nat source {list {access-list-number | access-list-name} interface type number | pool name} [overload | vrf name]

no ip nat source {list {access-list-number | access-list-name} interface type number | pool name} overload | vrf name]

Static NAT

ip nat source {static {esp local-ip interface type number | local-ip global-ip}} [extendable | no-alias | no-payload | vrf name]

no ip nat source {static {esp local-ip interface type number | local-ip global-ip}} [extendable | no-alias | no-payload | vrf name]

Port Static NAT

ip nat source {static {tcp | udp {local-ip local-port global-ip global-port | interface global-port}} [extendable | no-alias | no-payload | vrf name]

no ip nat source {static {tcp | udp {local-ip local-port global-ip global-port | interface global-port}} [extendable | no-alias | no-payload | vrf name]

Network Static NAT

ip nat source static network local-network global-network mask [extendable | no-alias | no-payload | vrf name]

no ip nat source static network local-network global-network mask [extendable | no-alias | no-payload | vrf name]

Cheers,
Rajesh

 

by: royaltechPosted on 2007-01-04 at 12:21:09ID: 18246292

So there is no way to add exceptions to that command just for 1 port to another internal IP?

 

by: lrmoorePosted on 2007-01-04 at 13:11:05ID: 18246730

Sorry...no

20120131-EE-VQP-002

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