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Port Range question on Access-list

We have a PIX 515 with FOS v6.3. Below is an access list on the PIX. I would like to do a port range of 20 - 21 but when I try to use a range I keep getting an error. Can a port range be used with this type of access list?

access-list outside-in permit tcp any object-group DMZ_ftp eq 20-21

Thanks for any help.

Jeff

2 REPLIES

Re: Port Range question on Access-list

Hi,

you could create an 'object-group' for the two tcp ports that you need. Add port-range 20 to 21 to this object-group and use the object-group in the access-list

object-group service 'my-group' tcp

port-object range 20 21

If rule is for allowing ftp traffic through the pix, you only need to allow the control port (tcp/21 or use the 'ftp' keyword) and the pix will automically/dynamically allow port tcp/20 for the data channel. Make sure that the 'fixup protocol ftp' is defined in the config of the pix to make this work.

Regards,

Tom

New Member

Re: Port Range question on Access-list

Thanks for the reply.

This access list is being used for outside ftp access to servers on the DMZ. I created a network group object of servers which should have ftp access to them. By creating the network group I can use the group to specify ftp access to them with the one access list statement.

Thanks.

Jeff

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