Access list with dynamic address

Short answer is you can't, thats one of the big drawbacks to dynamic IP's. Either get a static or you will need to use permit tcp/udp any any's.

If you know that your dynamic IP stays within a given range, then use that range. Or, apply ACLs to the internal interface.

Its better you use Addres Range instead of dynamic Ips. You must be having any range of IPS which u are using for this work.

Host your own nameserver and insert a dummy resource record for the hostname in question or add a like record to the hosts file of each pc.

the external.

check if your router supports CBAC

for a CBAC tutorial google for "The router is the firewall, part 1"

determine if the use of CBAC will address your needs

Diego Balgera schrieb:

Silly question: what *is* your purpose?

Normally, every packet arriving over a dial-up link with a dynamic IP address is in fact addressed to that dynamic address. So it shouldn't make any difference whether you use the IP address or just "any" for your side of the access-list entries.

What are you trying to achieve by explicitly putting your current IP address in?

HTH T.